Comments by "" (@doktorbimmer) on "Donut" channel.

  1. Today marks the 7th anniversary of the end of RX production, on Thursday June 21, 2012 at 4:30pm the final RX-8 car ever to be produced rolled off the assembly line, the last RX model to ever be produced by Mazda.
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  2. R.I.P. "Rust in Peace" Wankel engine... 1964 - 2012
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  3. This week marked the 10 year anniversary of Mazda's board cancelling the RX brand and further development of Wankel engines. The RX brand's bad reputation for unreliability and poor fuel economy saw sales in a steady decline as far back as 1986 with the last two RX model suffering a net loss for the company... it is estimated that the RX-8 lost nearly $3 billion dollars in development, production and warranty costs that bankrupted the company for the third time in its history. As part of the government bailout loan deal Mazda agreed to cancel development of the unprofitable Wankel engine and drop the failing RX brand.
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  4. @Bill Luo While it is a common urban myth that the RX-8 was canceled because of emissions, this is simply not true.. The RX-8 continued to pass the world's toughest emissions standards (EPA Tier2 Bin5 AND the strict California CARB ULEV II right up until lack of sales ended production. Sales of the RX-8 were so low in Europe there was simply no reason to justify re-certifying the RX-8 to meet the Euro5 emissions standards as they would never sell enough units to recoup the costs incurred.
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  5. @John Burns Indeed johnny... money and resources that would not have made any return on their investment. Mazda is a company that needs to develop cars that will actually sell... if not they will cease to exist as a company.
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  6. The salesman at the Mazda dealer didn't scream... he very politely said that Mazda does not make Wankel engines anymore....
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  7. @John Burns The RX-8 MET OR EXCEEDED EPA Tier2 Bin5 AND the strict California CARB ULEV II right up until lack of sales ended production.... it would have easily passed and exceed Euro5 standards...
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  8. The Wankel engine is not a player in the engine manufacturing industry anymore... its an obsolete design because it was inferior to reciprocating technology.
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  9. DR. Wankel had nothing to do with this engine... in fact he hated this engine.
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  10. @John Burns Europe is nearly half a century behind the United States which introduced vehicle emissions standards in the 1960s.
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  11. Skyactiv-G and Skyactiv-X technology requires high static compression Ratios... anyone familiar with Wankel engine should know that this is simply not possible because of the Wankel KKMs seriously flawed and limited combustion chamber geometry, CRs above 12.5:1 cause serious disruption of proper ignition flame propagation and deflageration making the designs poor combustion efficiency issues even worse. Mercedes-Benz exhaustively studied and developed GDI fuel injection systems with the Wankel engine in the late 1960s and found the CRs too low to effectively adapt Stratified Charge Mode Combustion and several other manufactures such as Rolls-Royce, Deutz, Yanmar, MAN, Krupp and John Deere studied Direct injection Stratified Charge operation with the Diesel Cycle and all failed to produces a commercially viable engine for these exact same reasons. Mazda's Skyactiv-X technology utilizes a modified Miller Cycle and variable valve timing in order to actively control Dynamic Compression Ratio something not possible in a fixed port induction design such as the Wankel KKM so any suggestion that Mazda is working on a similar system for the Wankel engine is simply ridiculous and without any technical merit.
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  12. Your baby is rotarded... a tragic genetic birth defect that has finally been eradicated from the automotive industry.
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  13. Unfortunately Felix Wankel's engine design was a complete failure.
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  14. John doesn't understand why Wankel engines are no longer made...
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  15. Certainly is inferior, that is why the Wankel was a commercial failure and has been obsolete in the engine manufacturing industry for many years.
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  16. Followed by the screeching sound of broken apex seal chucks grinding into the housing walls...
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  17. The Wankel engine is dead... its not coming back.
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  18. This month marks the 10 year anniversary of Mazda's board cancelling the RX brand and further development of Wankel engines. The RX brand's bad reputation for unreliability and poor fuel economy saw sales in a steady decline as far back as 1986 with the last two RX model suffering a net loss for the company... it is estimated that the RX-8 lost nearly $3 billion dollars in development, production and warranty costs that bankrupted the company for the third time in its history. As part of the government bailout loan deal Mazda agreed to cancel development of the unprofitable Wankel engine and drop the failing RX brand.
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  19. Mazda doesn't make Wankel engines anymore, this month marks the 10 year anniversary of Mazda's cancellation of the RX brand and further development of production Wankel engines.
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  20. Rest in Peace Wankel engine... 1964 - 2012
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  21. Mazda's cars are turning its drivers gay... if they weren't already!
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  22. There are a lot of false urban myths and misinformation out there that is really disturbing... the Wankel engine is an outdated and obsolete engine that died-out because it simply cannot be adapted to utilize the modern technology that it needs to make it clean, efficient and powerful enough to compete with the vastly super reciprocating engine types mass produced in the millions today.
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  23. @Gewdvibes Please don't pretend to know anything about batteries son... they are heavy, dirty, expensive and horribly inefficient. Fusion will be great some day... IF it ever arrives but it still won't replace internal combustion in some applications. ICEs will be around long after gas and coal are gone... because they don't need fossil fuels.
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  24. Actually he saw a Megola rotary engine motorcycle and saw how the whole engine acted as a flywheel making the engine lighter and run smoother... of course we don't use Felix Wankel's design because it was too complex... Mazda bought Hanns Paschke's and Walter Froede's design which is not a rotary engine at all...
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  25. REST in PEACE Wankel engine... 1964 - 2012
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  26. Audi has won Le Mans 9 times with a Diesel engine.
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  27. +TheKiwisage Mazda is not underrated... its just one of the smallest and least successful Japanese automakers...
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  28. @Gewdvibes You must be smoking crack if you believe that solar and wind can replace internal combustion engines... because everything will come to a sudden halt every night the wind is not blowing! Lol!
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  29. @Gewdvibes No, I'm dead serious kid... there is no technology available that can completely replace internal combustion engines in the automobile industry... anyone that tells you otherwise is clearly not educated enough to speak intelligently on the topic.
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  30. The Wankel engine is dead... never coming back.
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  31. Tesla electric cars are the official car of the LGBTQ community. https://www.youtube.com/watch?v=eLSR_pa6vjk
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  32. Mercedes-Benz unveiled their first HCCI engine 10 years ago... Mazda has built its entire business model around building disposable cars, its what they are famous for!
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  33. The 2.0 liter Skyactiv-X Mazda3 delivers 43.6 mpg on the new European WLTP drive cycle test. No EPA ratings yet but they could be near the 50 MPG mark.
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  34. Mazdas don't last 150,000 miles... what is your point.
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  35. Can you imagine? At one time people actually believed they would replace reciprocating engines...
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  36. The company that invented the Wankel KKM engine was NSU Motorenwerkes GmbH. it was at the time the largest motorcycle builder in Europe... Felix Wankel was a motorcycle fan and rider... he worked at NSUs motorcycle division. Félix Théodore Millet invented the Rotary powered motorcycle in 1892... Felix Wankels favorite bike was a legendary German racing bike company called MEGOLA Wankel copied the Rotary layout for his 50cc NSU supercharger and later his Wankel DKM prototype (a rotary motorcycle engine).
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  37. I salute Mazda for stubbornly remaining the smallest, least successful Japanese automaker...
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  38. Actually Mercedes-Benz unveiled their HCCI engine in a car 10 years ago and Volkswagen and Opel have also been working on the concept for years... the Mazda system relies heavily on HCCI component technology developed by Bosch from these earlier programs... only Mazda is taken the risk of launching an "half step" or intermediate stage version of this technology instead of a true HCCI system... they have chosen to be the Guinea pig.
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  39. @J Clark And engines like the Wankel that had inherently fundamental flaws become obsolete in the manufacturing industry regardless of how people take care of them.
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  40. @Vladimir Lucifer The injectors job is to evaporate the fuel... and evaporation causes COOLING by the absorption of latent heat.
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  41. Mazda was one of several companies that failed to meet the new interpretation of the existing Diesel emissions standards. Mazda Diesels were emitted 6 times the amount allowed and was unable to sell Diesel engines here because of these changes in EPA policy.
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  42. Internal combustion engines are not going anywhere... they are here to stay because there is no available technology to replace them.
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  43. Insert jealous homosexual rotard comments below.
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  44. One thing is for certain, the Wankel engine is dead... and it is never coming back.
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  45. I too immediately thought of Mazda's failed foray into producing cars with the Miller Cycle engine... Its too bad Mazda is better at losing money than making it.
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  46. Mazda lost 3 billion on the RX-8...
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  47. Like reliablity...
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  48. Indeed, the 4-cylinder MX-5 is the best selling sports car under $50,000... THE RX brand however was discontinued do to lack of sales.
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  49. Actually Mazda had been using electronic fuel injection for decades but still had problems... the Wankel suffers from several fundamental flaws that are inherent to its basic geometry that cause poor combustion and typically require more fuel (richer AFR) to prevent it from self-destructing from pre-ignition/detonation and to reduce combustion temperatures to prevent overheating. Modern reciprocating engine have the ability to use ultra high efficiency combustion chamber designs, leaner fuel mixtures and can be optimized for maximum efficiency... the solution for automakers is to abandoned the Wankel in favor of using only reciprocating engines as Mazda and others have done.
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  50. There is no explosion inside any internal combustion engine, the air and fuel mixture deflagerates rapidly but less than supersonic speeds... so no shock waves or directional forces... Pascal's Law dictates the pressure is always exerted equally and evenly in all directions.
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  51. The rotary engine has been obsolete since the 1930's like the Wankel engine it could no long compete against current engine Otto and Diesel engines.
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  52. @18CRFHONDA11 —HellcatGaming62 That's OK... John doesn't know anything about emissions either... he just a crackpot that thinks the Wankel will make a comeback... Lol!!!
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  53. @Quincy Gaming You can't make the Wankel better than reciprocating engines... its why all the engine manufacturers (including Mazda) have abandoned the obsolete design.
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  54. "Since when?" Since Rudolf Diesel proved that it was in 1898.
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  55. No, the Wankel engine cannot be adapted to HCCI technology because it lacks the ability to have high swirl, "Quench" type combustion chambers, high static compression ratios or variable valve timing. Wankel engines are obsolete and no longer commercially viable in the engine manufacturing industry... they are a relic of the past.
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  56. Mazda is now taking orders for the new Skyaciv-X 2.0 liter 4-cylinder equipped Mazda3 models with delivery for September 2019. https://europe.autonews.com/automakers/mazda-opens-orders-mazda3-fuel-saving-skyactiv-x-tech
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  57. The Wankel engine has some very serious inherent flaws in its basic design that simply cannot be overcome... the unique geometry that makes it possible to run in the first place also restricts is ability to adapt more efficiency that would allow it to compete with other internal combustion designs. One of the biggest problems is the Wankel engines low compression ratio and its poorly shaped combustion chamber... these flaws cannot be changed.
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  58. Yes, The Wankel KKM engines functions using the exact same operating principle as the Otto Cycle engine.
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  59. But how will you get the change in volume for intake, compression, power and exhaust cycles??? The piston/rotor has to reciprocate to achieve the change in swept volume.
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  60. Mazda stopped making Wankel engines 7 years ago.
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  61. +blyndrotor THAT'S RIGHT! the Mazda RX is the most popular car among people that know absolutely NOTHING about cars or racing.
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  62. Wankel engines were a commercial failure and are obsolete because they simply cannot compete with the vastly superior performance and reliability of reciprocating engines.
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  63. Mazda is still in business today... but only because they make cars exclusively with reciprocating engines now.
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  64. +blyndrotor The truth always bears repeating... and the facts are irrefutable.
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  65. Mazda discontinued Wankel engine production in June 2012... attacking the messenger is not going to bring the Wankel engine back...
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  66. Just the facts here kid... why does the truth anger you so much? if you have accepted the fact that the Wankel engine is obsolete because it was an inferior internal combustion engines design concept.
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  67. You certainly are bitter... and definitely in a very deep state of denial, the Wankel engine is no longer developed or produced by any of the original 26 Wankel KKM licensee's (including Mazda) and no longer in series production anywhere in the world... it is an evolutionary dead-end that is no longer able to compete against the vastly superior reciprocating Otto and Diesel engines... which the only thing Mazda makes now. Nostalgia is a seductive liar, you are simply refusing to accept the truth.
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  68. @Vinny V Just the facts here vinny... look up the definition of trolling... you will find that in fact you are the one trolling here.
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  69. @Vinny V Childish insults won't prove your point (if you had one) and don't make you look smarter either... Cheers!
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  70. @Vinny V Have you been by your local Mazda dealer lately? If you haven't? Be sure to ask a salesperson to see a 2019 RX model... Lol!!!!
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  71. Rust in peace Wankel engine 1964 - 2012
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  72. @Quill Maurer No civil or commercial aircraft manufacturer has ever sold a plane with a Wankel engine... this is because manned-aircraft engines must past extremely strict reliability tests. There has never been a successful Wankel engine that is FAA or EASA airworthiness certified.
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  73. @Quill Maurer That is an interesting theory he offered, but its nothing but wishful thinking. The Wankel engine was extensively and exhaustively developed by 26 of the world's largest and best engine manufacturers and over 100 of the best universities and research institutes (Like NASA and MIT) spent decades, millions of man hours and billions of dollar developing the Wankel engine design. Mercedes-Benz and and General Motors for example both spent over 100 million dollars a year on Wankel research and development, additionally: Ford Toyota Porsche Rolls-Royce Nissan Alfa Romeo American Motors (AMC) Citroën Suzuki Yamaha Kawasaki BSA Norton Hercules John Deere Ingersoll and Rand Fichtel & Sachs AG Yanmar Diesel Co. Ltd Daimler-Benz AG Deutz AG. MAN AG KRUPP AG IFA VEB Graupner Savkel Curtiss-Wright OMC Wankel-NSU which became Audi.. and dozens of subsidiary companies and and partnership companies which combined represent billions of dollars in research and development besides just tiny little Mazda.
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  74. PREMIX IN> APEX SEALS OUT>
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  75. Wow! premixing is a stupid, totally false urban myth. You have to be very dumb to premix.
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  76. +Tom Lake Charles I own several Rotary engines including a Uberursel UR-II, Le Rhône 9J and a Gnome et Rhône Monosoupape 9.... but I don't understand what that has to do with this conversation...
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  77. Well, if the Wankel engine offered any benefits? they would not have become completely obsolete in the engine manufacturing industry... this design could no longer compete with the other successful internal combustion designs still being mass produced in the millions.
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  78. Mazda 4-Cylinder Skyactiv-X Vision Coupe stuns at the 2017 Tokyo Motor Show https://driving.ca/auto-shows/tokyo-motor-show/mazda-vision-coupe-stuns-at-the-2017-tokyo-motor-show
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  79. Mazda stated that BSFC (Carnot thermal fuel efficiency) should be in the 50% range... which if your not familiar with engineering terminology would make more efficient than the most efficient automotive Diesel engines currently available.
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  80. BMW is a brand you buy when you want a better car.
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  81. Mazda, the smallest and least successful of all the Japanese auto makers... more famous for its colossal failures than it short history producing automobiles.
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  82. BMWs market share is not under any threat from Mazda who has survived by selling cheap, little entry level cars targeted at first time car buyers...I'm sorry if your lower economic status makes you feel inferior... its your lack of education that seems to be holding you back.
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  83. And you should recall Ford did not need a bailout... Ford bought Mazda in a court ordered bankruptcy sale after it went bankrupt in the mid 70's. Mazda bought back shares with bailout money from the Japanese Government and 3 major banks to prevent the company from going under.
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  84. BMW was building cutting edge aircraft engines long before Mazda was even making corks and bottle caps, long regarded as was on the finest engine manufacturers in the world it developed the first jet engine for military fighter jet aircraft and its designs are still produced and in service in supersonic jet fighters... Mazda has attempted several times to break into the luxury/ high-end performance automobile market but the Eunos, Amati and ɛ̃fini brand were all huge failures and have been discontinued.
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  85. +David Schwartz If you have ever lived and driven in Germany? You will quickly understand the different automobile design philosophy... in the States, cars are basically only taxed on sale price and fuel costs are relative low, (just like the quality of the roads here is low) You can't drive across two states here in 2 1/2 hours cruising at 120mph (unless you want to get arrested) High performance cars there are built to an altogether different set of standards and some people prefer this type of car not just for status.
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  86. @J Clark The Wankel KKM design was plagued by several very serious flaws in its basic design that caused it to be less reliable than reciprocating engines, most notably is its; -Highly compromised combustion chamber design. -Its very poor internal geometry which is inherently limited. -Terrible thermodynamic efficiency which causes higher operating temperatures. -and its very weak, fragile sealing system.
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  87. @Troy Bush Well, Audi won the Le Mans 24 hours NINE TIMES!!! with a Diesel engine and Diesels are the most efficient, practical heat engines available for motor vehicles... even huge container ships. Wankel engines??? They have been obsolete for years now, not even Mazda sells them anymore.
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  88. @Mr kool Aid Man Troy Bush stop pretending to be something/someone you are not... you are not fooling anyone here, especially not me.
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  89. The future will embrace HCCI technology... Mazda is not alone, Mercedes-Benz, Volkswagen and General Motors are all developing new, super high efficiency HCCI internal combustion engines that will power the cars of the future to 2050 and beyond.
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  90. Its all moot is what it is... the Wankel engine was a dead-end design and is no longer used in engine manufacturing.... obsolete technology.
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  91. True, I find obsolete technology like the Wankel engine fascinating... and an excellent example for future generations of how not to build engines.
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  92. True, and that is exactly why the Wankel is obsolete now.
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  93. @Vladimir Lucifer You clearly do not understand the concept of Latent Heat. When pressure drops the expansion causes the gas to ABSORB ENERGY and thus causing the COOLING EFFECT that is always observed.
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  94. Despite all the unsubstantiated blogsite rumors and bizarre comments from disgruntled Mazda employees... its no secret that Mazda is no longer in development of any new production Wankel engine... Mazda's board of directors voted in May 2009 to cancel all further development of commercial production engines and ordered all production to cease by 2013.... The very last series production engine was assembled on June 21st. 2012. The RX engine assembly facility at Ujina #2 was dismantled in late 2013 to make way for a new Skyactiv-G reciprocating engine plant. Mazda has not revealed any new engine prototypes in 10 years and they have not unveiled any new production engine in 23 years... if you think Mazda is going to bring them back? You are very naive.
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  95. None of the UAVs in current U.S. military service use a Wankel engine. Lockheed Martin Stalker battery-electric motor RQ-170 General Electric TF34 turbofan RQ-21 Blackjack 2-cylinder horizontally-opposed 4-stroke RQ-20 Puma battery-electric motor AAI Aerosonde Lycoming-Enya single cylinder 4-stroke Wasp III electric motor RQ-11 Raven Aveox 27/26/7-AV electric motor CQ-10A SnowGoose Rotax 914 piston engine MQ-9 Reaper Honeywell TPE331-10 turboprop MQ-8 Fire Scout Allison Model 250 turbshaft RQ-4 Global Hawk Allison AE 3007 turbofan MQ-1 Gray Eagle Thielert/Mercedes OM668 4-cylinder turbocharged 4-stroke Diesel MQ-1 Predator Rotax 914F turbocharged four-cylinder engine
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  96. You mean Wankel right? The very few Rotary engines left are in museums.
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  97. You mean Wankel right? The very few Rotary engines left are in museums.
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  98. Good comment, although I have to add that renewable alternative fuels will not run out... so ICEs are not going anywhere.
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  99. Mazda discontinued these unreliable engines years ago, production ended on Thursday June 21, 2012 at 4:30pm the final RX-8 car ever to be produced rolled off the assembly line, the last RX model to ever be produced by Mazda.
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  100. R.I.P. Rest in Peace Wankel engine 1964 - 2012
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  101. No, i'm saying in some countries where it is cloudy and rainy... problems with photo-chemical smog and particulates from Diesel engines are not a problem due to the lack of atmospheric conditions that cause these problems. The new generation of modern GDI gasoline cars also have the exact same NOx and particulate problems, because the use very similar Stratified Charge Mode Combustion.
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  102. And its also slang to call it a "rotor"... the correct engineering term is Orbiting Piston.
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  103. Mazda lost the 1991 WSC championship to Jaguar with this engine.
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  104. It simply proved the fact that Diesel engines are actually better for racing than Wankel engines... which is just sad.
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  105. they think you can replace internal combustion engines... those people are very ignorant.
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  106. NEWS FLASH: THE ROTARY ENGINE SUCKS! https://jalopnik.com/the-rotary-engine-sucks-1773174001
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  107. Wankel engines are exactly like old analog, CRT television sets, they are obsolete because they are outdated and offer inferior performance.
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  108. The Wankel engine was fatally flawed... Mazda dropped it like a bad habit in 2012.
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  109. Never going to happen... Wankel engines are obsolete technology.
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  110. WHERE IS IT???? Just more false rumors that never come true Hahaha!!! INSERT JACKASS TROLL REMARK BELOW
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  111. The word piston is right in the name given by its inventor.... you probably don't understand the difference between a ROTOR and a PISTON... but you are probably not an engineer either.
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  112. "Diesel engines are not more efficient than gas engines" REALLY???? Then why are the world's most fuel efficient engines DIESEL ENGINES???
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  113. Actually Per Liter Diesel Fuel #2 and gasoline have almost the exact same Energy Density (about 35 Megajoules per/liter). Diesel engines offer significantly higher Carnot Cycle Thermal-Fuel efficiency than Otto Cycle engines... which is exactly why Diesel engines are more fuel efficient.
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  114. If you really think that batteries can replace internal combustion engines??? Well, then you haven't done your homework... Because when you compare the Specific Energy density of liquid fuels to rechargeable batteries you quickly see the huge, very obvious problem with your theory...
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  115. Today marks the 6th anniversary of the end of RX production, on Thursday June 21, 2012 at 4:30pm the final RX-8 car ever to be produced rolled off the assembly line, the last RX model to ever be produced by Mazda.
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  116. No. they self-destruct their engine housings... these are disposable engines.
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  117. Engines that are not viable production units don't suffer apex seal failures because they never see real world use....
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  118. The United States military solved its problems with apex seal failures... they no longer use Wankel engines.
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  119. Its already supercharged
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  120. The Wankel engine is dead, Mazda ceased development of production Wankel engines back in May 2009.
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  121. +Owen racing Mazda only sells reciprocating engines since 2012... the Wankel engine was permanently discontinued because new car buyers refused to buy the anymore.
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  122. Wankel engines are completely obsolete in the automobile and engine manufacturing industries... you would have to be very gullible and naive to believe these inferior engines will ever come back... this is simply never going to happen for obvious reasons.
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  123. Mazda CEO said NO, they have absolutely no plans to bring back the Wankel engine and there is zero evidence to suggest this policy has changed apart from fake rumors started by amateur bloggers as "clickbait" headlines.
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  124. Without cars that actually sell... you have no car company, Mazda has already been bankrupt 3 times... they may just get swallowed up by Toyota or Honda next time and cease to exist.
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  125. Mazda only sells cars with reciprocating engines... they ceased all development of production Wankel engines in May 2009.
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  126. Nothing but wishful thinking and false hope... although laser ignition has been tested in laboratories, a practical system still does not yet exist.... and if it did? It would be equally beneficial to both orbiting reciprocating designs completely negating any net gain in efficiency over reciprocating engines.... so dream on.
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  127. They are so unreliable they are not used in aircraft. and automotive manufacturers abandoned them years ago.
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  128. The Eccentric-crankshaft works no differently than any of type of crankshaft... it just has a shorter stroke and is more rigid to deal with the massive stress cause by the lack of internal balance in the Wankel engine.
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  129. Not really, it uses the exact same types of bearings that other crankshafts use, not different at all in that respect... Connects to the PISTON specifically... the term "rotor" is a slang, an incorrect translation or proprietary term applicable only to certain defunct brands of Wankel engines.
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  130. Unfortunately it is a deeply flawed design and its flaws are inherent to the very basic fundamental geometry that allows it to work in the first place.. paint your self into a corner? its gonna be messy.
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  131. Mazda's Skyactiv-X is a reciprocating 4-cylinder!!! https://www2.mazda.com/en/next-generation/technology/
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  132. Why?
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  133. You don't actually know anything about engineering at all do you?
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  134. Wankel engines are no longer manufactured in series mass production anywhere in the world today... this obsolete design is no longer used in any production applications... it is now the sole domain of crackpots and con-men.
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  135. They have to submit there EPA test results for the car as it will be delivered to customers in the US before they can make any mileage claims.
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  136. Mazda just announced The 2.0 liter Skyactiv-X Mazda3 delivers 43.6 mpg on the new European WLTP drive cycle test. No EPA ratings yet but they could be near the 50 MPG mark.
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  137. How would you get the compression and power strokes to work???
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  138. Mazda now taking orders for the new Skyaciv-X 2.0 liter 4-cylinder equipped Mazda3 models with delivery for September 2019. https://europe.autonews.com/automakers/mazda-opens-orders-mazda3-fuel-saving-skyactiv-x-tech
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  139. The Wankel is sort of a joke.... it was a colossal failure.
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  140. Mazda discontinued the RX-7... 17 years ago and the entire RX brand including all Wankel engine production in June 2012.
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  141. That is a very naive statement... EVs have been around for over 130 years and have never been threat to Internal Combustion vehicles... and they still are not a threat even today.
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  142. Electric cars have been around for over 130 years... and they are still no threat to internal combustion cars... BEVs represent less than 1% of the total global fleet and market share remains stagnant...
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  143. R.I.P. Wankel engine 1964 - 2012
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  144. https://jalopnik.com/the-rotary-engine-sucks-1773174001 Jalopnik Says Rotary Engine Sucks!!!
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  145. Mazda's Skyactiv-X is a reciprocating 4-cylinder!!! https://www2.mazda.com/en/next-generation/technology/
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  146. Mazda really is an under-performing company, they seem to always invest large sums of cash into engine technologies that end up failing to catch on.
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  147. +Kaan Wayne But the RX-Vision was a non-functional, full-size model made out of styrofoam and clay??? It didn't have an engine or even have steerable front wheels.
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  148. Yes, the sports car market has shifted to the high-end segment... a place where Japanese automakers don't do well....
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  149. But other Japanese sports cars didn't do as badly as the RX-8 which suffered from having the worst fuel economy in its class, a bad reputation for reliability, poor resale value and utterly tragic styling.
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  150. Mazda is well known in Japan as the worst managed Japanese auto maker... with a long history of bankruptcies and models and entire brands that were huge embarrassing flops... anyone remember Amati? Eunos? or ɛ̃fini What about the Miller Cycle engine? that was another big flop that lost money.. they lost $3 billion on RX-8 too!
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  151. Mazda has made a niche for itself in cheap, entry level car market vehicles that are basically disposable after 8 years... So shitty rust proofing is what pay for... rust and corrosion is what you get.
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  152. +Lohan S Just the facts here kid... and the truth is always free of charge... anyone can look at the numbers of RX sales and see that the RX brand was in a fatal death spiral since 1986... Mazda had no choice but to pull the pull on the failing brand before it took the company to its destruction... if it wasn't for $3 billion in Japanese government bail-out loans Mazda would have ceased to exist years ago.
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  153. +Lohan S In case you are not familiar with Mazda (Toyo Kogyo Cork ltd.) kid??? The company has gone bankrupt 3 times in its rather short history... its biggest financial failure was after it attempted (miserably) to launch an all Wankel powered vehicle product line... if FORD MOTOR CO. had not purchased the company from a court ordered bankruptcy sale??? Mazda would have died out decades ago...
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  154. Mazda IS NOT TOYOTA... don't ever forget that son!
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  155. Some people only care about low price... not quality, its the very basis of Mazda's core customer business model.
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  156. @BoogieDownProduction YES, the facts... you must live in a very tiny, sheltered, delusional fantasy world created for yourself... here in the real world Mazda is struggling to survive in a shrinking market segment. BMW never needed a bailout or gone bankrupt 3 times like Mazda has... dropped like a bad habit by Ford... they are deepening their ties with Toyota which will most like acquire a majority stake if not an outright cash buyout in the not so distant future.
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  157. @BoogieDownProduction What is your point? Mazda is one of the smallest, least successful of the Japanese auto manufacturers... and they are currently being clobbered by the Koreans.
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  158. @BoogieDownProduction You are entitled to your personal opinions... but that does not change the fact that Mazda's market niche is selling cheap, entry level cars, it is not seen nor has it ever been perceived as a high performance or a high-end luxury marque... all of the companies efforts to move up-market have been met with failure. The small niche market for cheap Japanese cars that Mazda has occupied is now being overrun by cheap Korean and Chinese cars.
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  159. @BoogieDownProduction Subaru, Honda, Hyundai and Renault... these are underrated car companies... if anything Mazda is overrated.
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  160. @BoogieDownProduction I'm truly sorry that you can not afford to buy something better than a Mazda... perhaps you can go back to school and train for a better job? Mazda has dropped more bombs than the U.S. Air Force... https://www.nydailynews.com/autos/street-smarts/worst-mazdas-of-all-time-article-1.4042620
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  161. Interesting analogy but that does not explain the continuing success of reciprocating engines...
    1
  162. Wankel engines are like cigarettes, they are a waste of money and time and do not provide any benefits, only harm. Mazda dropped the Wankel engine like a bad habit in 2012 because no one bought them anymore and making them was a huge waste of money that was killing the company... the Wankel is finally gone now, good riddance!
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  163. All of the legitimate engine manufactures have abandoned the Wankel engine... it is now the sole domain of crackpots and vaporware investment scams Like Paul Moller/Freedom Motors, Davide Garside/AIE and Gilo Cardozo/Rotron Power... none of these con artists have ever delivered a commercially viable product or a reliable working engine for sale.
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  164. @Etownmaczilla 1 https://www.youtube.com/watch?v=tZmd7k33JWE&list=PLmhSXyOMooSlhNQZShFYxRRiz2pB_jl-g&index=3&t=0s
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  165. @Etownmaczilla 1 There were also several companies making Rotary motorcycles too, long before the Wankel engine existed. https://www.youtube.com/watch?v=c4Cq49IDfOc&list=PLmhSXyOMooSlhNQZShFYxRRiz2pB_jl-g&index=11&t=0s
    1
  166. @will Roland Only when a liter IS NOT A LITER son... I guess you have never heard of the "2X" conversion formula or learned how displacement is calculated???
    1
  167. @will Roland Then explain why people stopped buying them? Not a single engine manufacturing company anywhere in the world makes them anymore . Even Mazda discontinued them several years ago.
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  168. @will Roland Son, its very easy to spot the real trolls like you... all you have to do is read their sad pathetic comments which are always filled with bitter hatred, childish insults and completely devoid of any rational or factual arguments.
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  169. The Wankel engine has been obsolete for years.
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  170. Really? What makes you say that? Mazda discontinued Wankel engines because they just didn't sell... What is good for racing is good for sales and the RX brand sold poorly. Their racing performance was lackluster at best and did not inspire higher consumer sales.
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  171. The problem is tuning companies like RUF and AMG (which is a div. of Daimler-Benz now) work very closely with the manufactures... But since there are no companies that manufacture Wankel engines anymore? How can such a Tuner/manufacturer relationship exist? The RX brand was discontinued by Mazda years ago... how could such a symbiotic relationship be formed now? Wankel engines are obsolete in the manufacturing industry and no longer used in racing.
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  172. There is already a huge, custom aftermarket and exotic car industry in the automotive market that caters to anyone that wants something that is unique, different or special in some regard... but with exclusivity comes much greater costs a those that want something special must be prepared to pay accordingly. Mazda Motors has survived as a company by specializing in cheap, affordable entry-level cars targeted at first-time new car buyers... it cranks-out high volumes of just a few models to keep costs down and remain profitable. Mazda it has attempted several times unsuccessfully to break into the high-end luxury and high performance market but failed catastrophically. The Eunos, Amati and ɛ̃fini brands were all commercial failures and have been discontinued. The RX brand which was originally a very cheap, affordable sports car was repackaged as a high performance GT model with the RX-7 FD and this resulted in a very expensive mistake for Mazda, sales were terrible and the RX brands profitability spiraled ever downwards. The RX-8 concept also failed to sell enough units to turn a profit and the entire brand was discontinued in June 2012 to save the company from bankruptcy.
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  173. In contrast, Mazda's MX-5 developed from the Ford Duo-101 concept has been wildly successful and remains one of the companies best selling models ever. It remain the best selling low cost sportscar on the market and the best selling 2-seat convertible in history. Some of us love driving a rear-engine, rear-wheel drive sports car... but not enough of us for any manufacture to sell 100,000 units a year.... Porsche remains successful because its reputation for performance and quality commands prices in excess of 100,000 USD per car... No one is willing to pay 100,000 dollars for a Mazda though... so I suggest you start to appreciate the qualities that make the MX-5 a best seller.... or save you pennies for one of the more exotic brands. Cheers!
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  174. Mazda does not sell Wankel engines anymore.
    1
  175. SHOCKING NEWS! Mazda CEO Akira Marumoto has confirmed there will No New Rotary Engine. https://thedriven.io/2019/06/11/mazda-confirms-100-electric-car-model-for-2020/
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  176. All Wankel engines use the 4-stroke operating principle, the Wankel is not a 2-stroke.
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  177. @.SpiinDeX TROLL ALERT! Hey .SpiinDeX! Do not have anything better to do but troll people on Youtube? Sounds like your the one that needs to get a life... go troll somewhere else.
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  178. Skyactiv-X is real... and coming next year, Skyactiv-R was just a concept and does not actually exist in real life... Mazda only makes reciprocating engines now.
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  179. No offense taken... the Wankel is obsolete for one reason... it was not a very good engine.
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  180. Sounds like a great idea... putting an LS V-8 would be an even better idea.
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  181. @Gage Jerigen You obviously have no clue why these engines are completely obsolete in the manufacturing industry today... The automotive manufacturers know some things that you do not.
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  182. @Gage Jerigen That is a very naive statement that could only be made by someone who is not qualified or experienced enough to speak intelligently on this topic.
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  183. @Gage Jerigen You really don't know anything about engineering, the Wankel KKM design or its development history do you?
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  184. @dbspaceoditty The FIA never banned Wankel engines fron WSC competition... Mazda retired the 787b after losing the championship. This was all announced prior to the Le Mans race in June 1991.
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  185. @dbspaceoditty False urban myths, The RX-7 suffered steadily declining sales after 1986 and the FD was a huge financial failure... The RX brand was discontinued because the cars did not sell anymore... its that simple.
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  186. @dbspaceoditty You mean 20 years of false urban myths? There are no peer-reviewed publications that have ever made that claim.
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  187. @dbspaceoditty The 1991 season was the transition year to the new 3.5 liter engine formula... although most of the teams were already running the new 3.5 liter engine Mazda was allowed to still run the R26B. Mazda announced the Judd V-10 would be used next year (before the 1991 Le Mans 24 hours.
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  188. @dbspaceoditty Urban myths are caused by stupid lazy people like you... that mindlessly regurgitate lies and false information without ever bothering to check if what you are saying is actually true...
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  189. @dbspaceoditty Mazda retired the 787B because the chassis was slow and outdated, and Mazda did not want to invest anymore cash into a new 3.5 liter Wankel engine, they signed a deal to compete with the Judd V10 engine before the 1991 Le Mans 24 hours but it was the last season the old engine formula would be used.
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  190. @dbspaceoditty IF it was better??? Then Why did Mazda never win a single endurance racing championship? Mazda LOST the 1991 Le Mans series Championship to JAGUAR.
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  191. @dbspaceoditty If they were better? Why is it that people stopped buying them, Mazda discontinued them due to lack of sales.
    1
  192. @kling the king Skyactiv-X only exists as a 4-cylinder reciprocating design. Mazda no longer makes Wankel engines.
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  193. @Negative_Flect No one can make the Wankel better... its an inherently inferior design that cannot compete with reciprocating engines, it is obsolete technology.
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  194. @Dealor Did you know that Ford Motor Company once held more patents on the Wankel engine than Mazda... and they NEVER SOLD A SINGLE WANKEL ENGINE!
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  195. Wankel engines are obsolete... it was a dead-end technology.
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  196. You weren't paying attention then...
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  197. EVs are not the future... not 130 years ago when EVs were introduced and not now either... No amount of research will ever produce practical, rechargeable battery that can match the energy density performance of recharge rates of liquid hydrocarbons and this is why EVs have remained nothing more than a tiny niche market segment in the industry for over 100 years.
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  198. Millions of Diesel cars on the road right now... doesn't seem to be an insurmountable problem.
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  199. Yes, Its been done.. but Wankel engines are obsolete technology now... no longer produced anywhere in the world today.
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  200. Not really, 26 of the biggest and best engine manufacturers and over 100 universities and research institutes concluded that the Wankel engines were inherently and fundamentally inferior the reciprocating engines that are sold by the millions, the Wankel was both a colossal commercial and engineering failure.
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  201. As I said, its been done already... and proved to be a dumb idea.
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  202. Its a little complicated but I will try to summarize for you; One of the major flaws in the Wankel design is the extremely high reciprocating and orbiting mass due to the large heavy triangular pistons (aka rotors). The longer the eccentric-crankshaft is, the greater the torsional stress on the shaft and housings... this causes flexing and distortion that results in the piston/rotor contacting and damaging the surface of the housings, allowing greater clearance causes the apex and side seals to not seal properly and fail prematurely. In summary it turned out to be a bad idea, the ideal Wankel engine design is a single chamber, while 2, 3, 4 and 9 chamber stacks have been tried they increase in weight and decrease in reliability as you add more chambers... so its a bad idea, not a good one. If you have any additional questions please feel free to ask. cheers!
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  203. The video was produced primarily for entertainment and comedic effect and is full of egregious errors and mistakes... The biggest error is the version of the Wankel engine shown in the video is not even the one designed by Felix Wankel... so many of the concepts mentioned in the video do not even apply. So If you are basing anything you know about Wankel engines on this video? Most of what you know will also be wrong.
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  204. So? The Wankel is much less efficient as a 4-stroke engine... while it is a very interesting design it was ultimately a failure because it is not as good as other types of internal combustion engines that were very successful.
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  205. The average driver really doesn't need 600 hp... or want to pay for the additional performance equipment needed to make a 600 hp car safe to drive.
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  206. The latest versions of the new Corvette currently have VVT (Vtec in Honda speak) and Dodge HEMI engines have VCT (VANOS in BMW terminology)
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  207. Why can't you buy one???
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  208. Actually Curtis Wright was the first Wankel KKM engine licensee in 1958. The Wankel-NSU company was purchased by VW in 1969 and was merged with AUDI which still holds any remaining rights to the Wankel design and trademarks.
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  209. No worries... cheers!
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  210. The Wankel is dead.
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  211. All Wankel engines use the exact same 4-stoke operating principles as reciprocating Otto and Diesel engine do...
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  212. Sooner or later Toyota will own majority control of Mazda... just like Ford did for decades.
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  213. Why not just use a piston the first time and burn all the fuel efficiently the same time??? That is what all the engine manufacturers do now, even Mazda.
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  214. Yes, Wankel engines are a waste of time...
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  215. This Month is the 7th anniversary of the end of RX production, on Thursday June 21, 2012 at 4:30pm the final RX-8 car ever to be produced rolled off the assembly line, the last RX model to ever be produced by Mazda.
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  216. Just answer the simple question... "Please explain why you would want a gasoline fuel that acts like Diesel fuel??? and how that would solve the flaws in the Wankel engine?"
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  217. No, you are a liar, what kind of fake are you? Just answer the simple question PLEASE... "explain why you would want a gasoline fuel that acts like Diesel fuel??? and how that would solve the flaws in the Wankel engine?"
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  218. No, unfortunately there are precious few that really know or understand anything about the history or development of the Wankel engine...
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  219. Depends on the application.. inline 6 is smoother, less vibration but longer and heavier.
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  220. Range extenders are are monumentally stupid which is why no automobile manufacturer sells one.
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  221. @Gewdvibes You really don't know anything about cars do you kid? Toyota sells more Camry models in ONE MONTH than Tesla sells CARS IN AN ENTIRE YEAR! EVs make up less than 1% of the cars in the world and this market share remains stagnant.
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  222. That is a lie. There are currently no countries that have banned ICE cars and no agreement to phase them out... There simply is no technology available to completely replace them and they will be around for and for sale well into the foreseeable future.
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  223. @Gewdvibes Unless it is signed and adopted into law? It is completely meaningless.... which exactly what it is. Just the facts here son, childish insults won't make you look very smart or very mature, and they certainly won't support your false assumptions about automobiles and the automobile industry.... it just makes you the angry troll here. Don't hate, EDUCATE yourself!
    1
  224. @Gewdvibes The recent riots in France have definitely scratched Paris off that list... the people there have spoken and they do not want electric cars or higher taxes to pay for them.
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  225. @Gewdvibes Just the facts here... there are no bans on internal combustion cars in Europe or America... I think you are having a difficult time distinguishing real news from fake news.
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  226. @Samuel Thornton Well, if they were better? Then why did people not want to buy them??? Sex? only if you are gay... but as you might know already the LGBTQ community no longer supports Mazda... they have named Tesla Motors as the official car of the gay and lesbian community.
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  227. @Samuel Thornton Electric cars are great... if you are GAY! https://www.youtube.com/watch?v=eLSR_pa6vjk
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  228. +Motakai I love Doritos... Cool Ranch flavor is my favorite! Don't HATE, EDUCATE yourself.
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  229. Mazda care too much about staying in business to shove a dirty, inefficient and unreliable Wankel in their cars anymore...
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  230. @Forever13 pt Can you please offer a successful, practical example of the Bourke engine? As far as I'm aware its dubious and unfounded claims are yet to be verified by any independent third party testing... and no company currently offers one for sale to confirm these grossly inflated claims.
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  231. @Forever13 pt Mazda has only confirmed a joint venture with Toyota and Denso to produce a plug-in, 100% electric vehicle. Mazda no longer sells cars with Wankel engines... no automotive manufacture has for several years now... the design is now completely obsolete in the engine manufacturing industry... so NO its not coming back.
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  232. @Forever13 pt No its not, Mazda discontinued production of Wankel engines and no one is making range extenders anymore... the concept never really got off the ground.
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  233. @Forever13 pt But you cannot prove that the Bourke offers any practical advantages, only conjecture regarding possible theoretical ones... and that doesn't pay the bills or power automobiles down the road... so therefore not worth mentioning.
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  234. @Forever13 pt The truth is irrefutable... there are no Wankel engines in development at Mazda or any new cars using them... and there is no evidence to prove otherwise.
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  235. @Valdimir Lucifer Oh Yeah? SO WHAT? Mazda has been saying that for over 8 years now and it never comes true!!! They have not unveiled a new production Wankel engine in 25 YEARS!!!! Maybe you are just a fool to believe any of these false rumors.
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  236. @Valdimir Lucifer More lies... Rumors are never confirmed, that is why they are called rumors and not facts!! There are no new Wankel engines coming from Mazda... idiots like you have been repeating these same false rumors for decades... how can you be so gullible?
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  237. Compared to what? Mazda used to sell Wankel engines... nothing could be more unreliable!
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  238. He was 50 when invented the DKM-54 engine... But he never came up with the idea for this engine... the Wankel KKM was invented by Hanns Paschke and Walter Froede... in 1957.
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  239. insert homosexual rotard' comments below.
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  240. The Wankel engine turned out to be a bad choice... no manufacturer even sells them anymore.
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  241. Mazda announced it is now taking orders for delivery in Europe in September, 178 horsepower and 164 lb-ft of torque, The 2.0 liter Skyactiv-X Mazda3 delivers 43.6 mpg on the new European WLTP drive cycle test. No EPA ratings yet but they could be near the 50 MPG mark. prices starting at $23,000 USD. The Skyactiv-X is expected to arrive in the states next year.
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  242. You could buy 5 of these Mazda's for the price of the best range performing EV available on the market.
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  243. SHOCKING NEWS! Mazda CEO Akira Marumoto has confirmed there will No New Rotary Engine. https://thedriven.io/2019/06/11/mazda-confirms-100-electric-car-model-for-2020/
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  244. Mazda just announced The 2.0 liter Skyactiv-X Mazda3 delivers 43.6 mpg on the new European WLTP drive cycle test. No EPA ratings yet but they could be near the 50 MPG mark.
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  245. Mazda lost 3 billion on the RX-8... 10 mil is just pocket change.
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  246. But how would it form a gas tight seal? And how would it allow for the expansion and contraction of the housings? a roller would require some type of bearing to support it at such extremely high rpm... and that would a require some form rigid attachment. And interesting idea... but not a practical or even functional one.
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  247. You are correct... its a type of crankshaft called an eccentric-crankshaft... but works exactly the same.
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  248. Actually all Wankel KKM engines use the same 4-stroke operating principle as the Otto engine.
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  249. Rolls-Royce went bankrupt developing the R-6! It was a massive embarrassing failure that never started or ran reliably... the british government rescued R-R from creditors and nationalize it... the first program cut was the R6 fiasco
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  250. David Garside is a self-promoting crackpot, and a con-man... Norton purchased its Wankel engine from Sachs and promptly went bankrupt producing the inferior Wankel engine.
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  251. BULLSHIT!!! Felix Wankel had NOTHING to do with the development of the Wankel KKM design... HE HATED IT!!! The KKM was the creation of WALTER FROEDE and HANNS PASCHKE... Max Bentele is credited with the greatest improvements to the Wankel design... he was also the first to realize it was a dead-end design.
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  252. But John, Daves designs for Norton were all FAILURES!!! Norton went bankrupt because Garside is a incompetent crackpot!!!
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  253. John than please tell us how many Wankel engines Rolls-Royce sold??? And how much profit was returned on its investment into Wankel engines????
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  254. Sometimes John you sound like you are completely detached from reality... Wankel engines are obsolete because engineers understand they are inferior to other ICE's still mass produces in the millions.
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  255. Wankel engines are obsolete because there is no way to make them reliable.
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  256. Not really, they suck which is why they are obsolete.
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  257. and Dr. Walter Froede...
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  258. Just remember Porsche has won Le Mans 19 TIMES!!!! with a reciprocating engine... Audi has won 9 TIMES!!!! WITH a DIESEL ENGINE!!!!! and the FIA never banned Wankel engines... Mazda retired the slow uncompetitive 787b because it could only win if the points leaders all crashed out of the race!
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  259. @caberFeidh The FIA never banned the Wankel engine or the 787B in WSC series or Le Mans... Mazda retired the 787B because it was slow and uncompetitive.. 20 losses in 21 races, No poles, no fastest laps. Mazda announced in 1990 that would retire the 787b after the 91 season and before Le Mans.
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  260. @Caberfeidh The 787B failed to win a championship for Mazda, they lost the 1991 series to Jaguar. There was little incentive to introduce a smaller Wankel engine to meet the new displacement classification. The 767s engine proved it was not reliable or powerful enough to be competitive. and the 787s chassis was outdated. Mazda switched to the Jaguar chassis and the Judd engine... can't beat'em? then Join them.
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  261. John Burns, None of the UAVs in current U.S. military service use a Wankel engine. Lockheed Martin Stalker battery-electric motor RQ-170 General Electric TF34 turbofan RQ-21 Blackjack 2-cylinder horizontally-opposed 4-stroke RQ-20 Puma battery-electric motor AAI Aerosonde Lycoming-Enya single cylinder 4-stroke Wasp III electric motor RQ-11 Raven Aveox 27/26/7-AV electric motor CQ-10A SnowGoose Rotax 914 piston engine MQ-9 Reaper Honeywell TPE331-10 turboprop MQ-8 Fire Scout Allison Model 250 turbshaft RQ-4 Global Hawk Allison AE 3007 turbofan MQ-1 Gray Eagle Thielert/Mercedes OM668 4-cylinder turbocharged 4-stroke Diesel MQ-1 Predator Rotax 914F turbocharged four-cylinder engine
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  262. That won't even happen... you can't change the shape of the engine, so apex seals will always be prone to damage and premature failures... That is a major flaw in the Wankel's fundamental design... there is no way to lubricate the seals without fouling the combustion chamber with oil.
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  263. Unfortunately that is not the case, 26 of the worlds biggest and best engine manufacturers and nearly 100 universities and research institutes have spent billions of dollars and more than a million man-hours developing the Wankel engine over the past 50 years trying to find solutions to these design flaws... by 2008 all of them had reached the exact same conclusion... the Wankel engine is fundamentally and inherently flawed... it is inferior to reciprocating engines and has been rendered obsolete in the engine manufacturing industry.
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  264. Mazda has a thing for backing the wrong engine technology... and then going bankrupt... lets hope that this isn't the case with HCCI technology.
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  265. @John Burns Well, not in the old Mazda engines... they reciprocate left and right.
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  266. @John Burns It appears you do not actually understand how the Wankel KKM engine works... would you like me to explain how the eccentric-crankshaft off-set produces a stroke equal to twice the offset?
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  267. Johnny! Just go down to your local Mazda dealer and see for yourself... Wankel engines are dead!!!
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  268. Unfortunately no one has ever sold Felix Wankel's engine design... it was a failure and only a single prototype exists today in the Deutsche Techniks Museum.
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  269. No legitimate engine manufacturer produces the Wankel KKM engine anymore... Wankel engines have become the sole domain of crackpots and con-artist... which one are you Johnny????
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  270. The problem here is you are taking a car that already uses twice as much fuel and creating one that uses 4 times as much fuel... not a very good idea.
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  271. +SidewaysGts Dude. you seriously need to chill out... everyone knows that the Wankel engine had serious disadvantages and that terrible fuel consumption is just one of the reason why they are no longer made.
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  272. Just the facts... so chill out, K
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  273. Just the facts here... Mazda never sold a single Rotary type engine in its entire history... just Wankel engines, the truth is irrefutable, and you you don't intimidate me one bit.
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  274. Childish insults won't prove your point (if you had one) and certainly don't make you look smarter either...
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  275. "More facts: Youre a twat. Shrug" It doesn't get any more childish than that.
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  276. Just the facts here... the truth is irrefutable. You are just not mature enough to accept the truth and still live in a perpetual state of denial.
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  277. You don't intimidated me... you need to accept the truth and move on with your life... attacking me will not bring the Wankel engine back from the dead.
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  278. What is your point? Killing the messenger will not bring back the Wankel from the dead... Nothing you can say to me will change this fact.
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  279. My point is there is nothing you can say to me that is going to bring back the Wankel engine... your efforts are completely futile.
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  280. Nothing you can say to me changes anything... the Wankel engine is dead and there is absolutely nothing you say to me will ever change this fact... if you're angry about you should insult and harass Mazda... I had nothing to do with the demise of the RX brand or the Wankel engine becoming obsolete.
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  281. So why the angry little childish insults... what do you think you will accomplish?
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  282. Your childish insults still won't bring back the Wankel engine... its dead and there is nothing you can say to me that will change this irrefutable fact...
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  283. Childish insults is all you have... how pathetic.
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  284. And you have spent years in denial that the Wankel engine is dead... Attacking me is not going to bring it back son, IT'S GONE!
    1
  285. The Wankel has been out of production for years... and you are obviously still very angry and in a deep state of denial about it.
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  286. Lets recap, Mazda's board of directors votes to cancel development of production Wankel engines in May 2009, and ceased all production in 2012... a decision I had nothing to do with... Why are you mad?
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  287. Why do you think you can intimidate me with childish insults and harassment? You do not intimidate me in the slightest...
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  288. Mazda doesn't make Wankel engines anymore... not a single legitimate engine manufacture has produced them in years.
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  289. Mazda has been selling engines that blow-up as long as its been in business... some people only care about price, not quality.
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  290. Mercedes-Benz revealed their HCCI engine over 10 years ago...
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  291. Gas? You mean gaseous fuels like LNG or propane? Yes, Wankel engines have been tested and developed to use a wide range of gaseous fuels but unfortunately the Wankel is very poorly suited to extracting the energy contained in these fuels and deliver poor fuel efficiency and higher emissions than reciprocating engine designs.
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  292. Most of the vaporware scams offering Wankel engines are dead... these systems are now powered by Rotax reciprocating engines.
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  293. Not ones in current U.S. military service, they have abandoned the use of Wankel engines completely. Lockheed Martin Stalker battery-electric motor RQ-170 General Electric TF34 turbofan RQ-21 Blackjack 2-cylinder horizontally-opposed 4-stroke RQ-20 Puma battery-electric motor AAI Aerosonde Lycoming-Enya single cylinder 4-stroke Wasp III electric motor RQ-11 Raven Aveox 27/26/7-AV electric motor CQ-10A SnowGoose Rotax 914 piston engine MQ-9 Reaper Honeywell TPE331-10 turboprop MQ-8 Fire Scout Allison Model 250 turbshaft RQ-4 Global Hawk Allison AE 3007 turbofan MQ-1 Gray Eagle Thielert/Mercedes OM668 4-cylinder turbocharged 4-stroke Diesel MQ-1 Predator Rotax 914F turbocharged four-cylinder engine
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  294. @WALTERBROADDUS The world's number one UAV engine manufacturer only sells reciprocating engines, just over 50,000 UAV and ultralight engines... they abandoned development and production of the inferior Wankel engine decades ago... just like all 26 of the original Wankel KKM licensee's have... including Mazda.
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  295. @WALTERBROADDUS Just the facts here son... Wankel engines are obsolete technology now... it proved to be a massive commercial failure and is now the sole domain of crackpots and investment scams.
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  296. @John Burns Hey Johnny!!! Welcome back to the real world! Have you been by the Mazda dealer to check out those new 2020 RX models yet??? Hahahahaahaha!!!!!!
    1
  297. @John Burns The voice of the Mazda salesman told me "We don't sell those anymore... the RX line was discontinued long before I started working here"
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  298. @John Burns Johnny you look like a fool right now, you told me Mazda would launch the RX-9 by now... WHERE IS IT????
    1
  299. NEWS FLASH! MAZDA CONFIRMS NO ROTARY RANGE EXTENDER. https://thedriven.io/2019/06/11/mazda-confirms-100-electric-car-model-for-2020/
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  300. A trip down to your local Mazda dealer proves these troublesome obsolete engines are no longer sold... now all we have is fake rumors.
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  301. Rotax GmbH. reciprocating engines dominate the UAV industry... Wankel engines are obsolete.
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  302. None of the UAVs in current operation with the US military (the world's largest customer) have a Wankel engine.
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  303. Wankel engines are completely obsolete in the automobile industry and no longer produced anywhere in the world... not even Mazda uses them now.
    1
  304. Also because Mazda discontinued its brand of Wankel engines formerly known as the registered trademark "Mazda Rotary®".
    1
  305. Why do you think it would work better? And how would it reduce emissions?
    1
  306. So you are unfamiliar with the concept of fuel enrichment as the manifold pressure increases? Forced-induction engines must operate with a richer air-fuel mixture as manifold pressure increases... engines with turbochargers must run even richer than superchargers to lower the EGT (exhaust gas temp.) and keep the TIT (turbine inlet temp.) below a safe limit. Wankel engines due to their lower efficiency require even richer fuel mixtures than piston engines and tend detonate (pre-ignition) and overheat the turbo more easily due to the poor combustion chamber design and higher EGT than piston engines.
    1
  307. Ernie Brink has an imaginary engine... it looks like an engine but doesn't run.
    1
  308. Mazda's MX-5 is currently the world's most popular track car... its also the best selling sports car under $50,000!
    1
  309. Apex seals are why Mazda only sells cars with reciprocating engines now!
    1
  310. Mazda only makes and sells cars with reciprocating engines now... its time to join the rest of us here in the 21st century... the Wankel engine is obsolete because it could no longer compete against vastly superior reciprocating engines that dominate the performance car industry.
    1
  311. The only thing that stopped is production of cars with Wankel engines... the Wankel is now completely obsolete in the engine manufacturing industry... the quicker you learn to accept this fact the happier we all can be OK?
    1
  312. OLD RUMORS BUSTED! MOST RECENT NEWS Mazda CEO Akira Marumoto has confirmed there will No New Rotary Engine. https://thedriven.io/2019/06/11/mazda-confirms-100-electric-car-model-for-2020/
    1
  313. How would you get the compression and power strokes to work and achieve the 4-stroke cycles????
    1
  314. You have to remove the engine from the vehicle and perform an entire engine overhaul, some of the major components are often damaged besides the apex seals and can be expensive to replace.
    1
  315. @John Burns BULLSHITE!!! Diesels are not being banned in the EU.
    1
  316. A lot of the major flaws in the Wankel engine are inherent to its basic geometry and will never be solved... Not true, if there were any real advantages? Wankel engines would still be in production...
    1
  317. Mazda just announced The 2.0 liter Skyactiv-X Mazda3 delivers 43.6 mpg on the new European WLTP drive cycle test. No EPA ratings yet but they could be near the 50 MPG mark. They are not out yet but expect to see them in European showrooms in September.
    1
  318. You sound very angry... don't deny it like you deny the Wankel is dead.
    1
  319. Sure doesn't sound like it... you seem very bitter and disturbed.
    1
  320. Run along angry little troll... you are bitter and angry at Mazda... not me.
    1
  321. Mazda no longer sells cars with Wankel engines... I'm just stating the facts.
    1
  322. +Orion Loranzo He is right though... those engines were total garbage... more power but far worst efficiency and much lower reliability all with a ridiculous price tag... that is why they were discontinued by Mazda decades ago.
    1
  323. +Andrew It still doesn't change the fact that Mazda no longer sells any car with a Wankel engine.
    1
  324. +Andrew No fact could be more easily proven than simply going down to your local Mazda dealer's showroom... you will not find ANY NEW CARS with a Wankel engine.
    1
  325. +Andrew You seem extremely bitter that Mazda discontinued Wankel engines... but the truth is no automobile company can stay in business selling cars that no one wants to buy. Sales of Mazda's RX brand were in steady DECLINE since 1986 and by 2008 cars were starting to sit in showrooms unsold and piling up in storage. Mazda's massive Ujina #2 RX-8 assembly line was sitting idle except for just 4 hours PER WEEK bleeding the company dry with lost development and production costs.
    1
  326. +Andrew Sounds like you are not as nostalgic for 1960's technology as you are for 1960's prices... My advice to you is if you cannot afford to buy a new car that you like... find a better job
    1
  327. +Andrew Whats was your point Andrew? Was someone else here arguing that Subaru doesn't make reliable long lasting cars???
    1
  328. +Andrew Are you sure you weren't reading an article from an amateur blogsite like "Motor1" or "A1Auto"??? these non-credentialed "news" sites are filled with fake "clickbait" headlines that are posted because they are guaranteed to produce a lot of revenue generating "hits" to their blog page.
    1
  329. +Andrew I was around back when experts still believed that the Wankel engine was going to completely replace reciprocating engines... I have been fascinated with the M950F and the SCORE programs for decades... if anything I'm a little sad that the Wankel turned out to be a colossal failure and all of this engine research is now completely forgotten. What does bother me is brainless, uneducated amateurs regurgitating false urban myth, fake rumors and outright lies about the Wankel engines that do not exist and never will... because they do not understand or accept the fact that the Wankel as commercial production engine is now complete dead. Wake up kid, you still have a lot to learn yet.
    1
  330. +Andrew I'm not sure what your experiment is supposed to prove son... we were discussing technology and features of NEW and FUTURE vehicles... I personally love old cars and own several of them that I have partially or fully restored... some of my vehicles have over 400,000 miles on THE ORIGINAL ENGINE.. and still pass emissions testing here in California (the strictest in the world). We were discussing the fact that Mazda NO LONGER sells cars with Wankel engines because they are OBSOLETE in the auto manufacturing industry, why is this fact so difficult for you to accept?
    1
  331. +Andrew Where is the link to the official Mazda statements??? Where is the new engine? The articles doesn't give any quotes, references or verifiable facts... I'm sorry but that is not proof... just more of the sme old false rumors we have been getting for over 10 years.
    1
  332. +Andrew A real announcement is followed up by details, photos and a reveal of the new engine... The Skyactiv-X engine expected to go on sale at the same time has already been displayed and even test driven by the press... if there is a Range extender Wankel engines coming in 2020??? WHERE IS IT??? We should have seen a prototype by now.
    1
  333. +Andrew Real upcoming models and engines can be seen, examined in their prototype and pre-production form and even test driven by the press before release, imaginary vehicles and engine cannot because they do not exist. https://www.caranddriver.com/reviews/2019-mazda-3-with-skyactiv-x-compression-ignition-gas-engine-prototype-drive-review
    1
  334. The Renesis engine is a lot worse than "a bit fragile..." and as performance cars go... Mazda sedans are not that impressive.
    1
  335. Just the facts here kids.. these engines are WANKEL engines, and by the way... you probably wouldn't know a Rotary engine if one was dropped on your foot!
    1
  336. @cicobee Your'e funny man... I love your sarcasm!
    1
  337. @cracked emerald They are imperfect engines... which is why they are no longer used in any major professional racing series.
    1
  338. @Matt Evans The FIA NEVER BANNED the Mazda 787B or Wankel engines... this is a false urban myth. Then why was the 787B so slow and uncompetitive? The Mazda 13B series engines have a total, true displacement of 3.9 liter... Most Motorsports sanctioning bodies use the 2X conversion formula to calculate Wankel engine displacement at 720° making the 13B a 2.6 for comparison purposes. You should learn some basic engineering and engine design before you make foolish comments.
    1
  339. @Matt Evans Mazda did not discover anything new, it purchased the manufacturing rights for the Wankel KKM engine design from NSU Motorenwerkes GmbH. in 1960... it had no automotive engine designs of its own prior to this time. Not anymore, Mazda cancelled development in May 2009 and discontinued production in June 2012.
    1
  340. Wankel engines are no longer used in any major professional or world class motorsports series.
    1
  341. @Vinny V Could've fooled me kid... There is a lot more to learn about Wankel engines than what was shown in this fan boy video. Don't look at your own comments??? Sounds like you are the one trolling here son...
    1
  342. The Wankel engine is obsolete and can not be adapted to Skyactiv-X technology either.
    1
  343. You obviously don't know much about Wankel engines or Skyactiv-X technologies.
    1
  344. Mazda only makes reciprocating piston engines...
    1
  345. There are a lot of false urban myths and misinformation out there that is really disturbing... the Wankel engine is an outdated and obsolete engine that died-out because it simply cannot be adapted to utilize the modern technology that it needs to make it clean, efficient and powerful enough to compete with the vastly super reciprocating engine types mass produced in the millions today.
    1
  346. Despite all the unsubstantiated blogsite rumors and bizzare comments from disgruntled Mazda employees... its no secret that Mazda is no longer in development of any new production Wankel engine... Mazda's board of directors voted in May 2009 to cancel all further development of commercial production engines and ordered all production to cease by 2013.... The very last series production engine was assembled on June 21st. 2012. The RX engine assembly facility at Ujina #2 was dismantled in late 2013 to make way for a new Skyactiv-G reciprocating engine plant. Mazda has not revealed any new engine prototypes in 10 years and they have not unveiled any new production engine in 23 years... if you think Mazda is going to bring them back? You are very naive indeed sir.
    1
  347. Skyactiv-G and Skyactiv-X technology requires high static compression Ratios... anyone familiar with Wankel engine should know that this is simply not possible because of the Wankel KKMs seriously flawed and limited combustion chamber geometry, CRs above 12.5:1 cause serious disruption of proper ignition flame propagation and deflageration making the designs poor combustion efficiency issues even worse. Mercedes-Benz exhaustively studied and developed GDI fuel injection systems with the Wankel engine in the late 1960s and found the CRs too low to effectively adapt Stratified Charge Mode Combustion and several other manufactures such as Rolls-Royce, Deutz, Yanmar, MAN, Krupp and John Deere studied Direct injection Stratified Charge operation with the Diesel Cycle and all failed to produces a commercially viable engine for these exact same reasons. Mazda's Skyactiv-X technology utilizes a modified Miller Cycle and variable valve timing in order to actively control Dynamic Compression Ratio something not possible in a fixed port induction design such as the Wankel KKM so any suggestion that Mazda is working on a similar system for the Wankel engine is simply ridiculous and without any technical merit.
    1
  348. The only one making themselves look like an idiot is you buddy... you clearly have no fuckin clue what you are talking about...Wankel engines are an obsolete dead-end technology that even backwards little companies like Mazda even abandoned several years ago....
    1
  349. You obviously do not understand how this new HCCI technology works if you think it can be adapted to the Wankel concept... perhaps you should go back to playing video games kid.
    1
  350. You are wrong kid, and you just embarrass yourself by pretending otherwise.... your comment is not funny, its just stupid and sad.
    1
  351. There is nothing else that can replace internal combustion... so they will just continue to improve.
    1
  352. There is no safe, practical or effective technology that can replace internal combustion which is why engine manufacturers continue to invest in improving ICE efficiency.
    1
  353. I'm being completely serious, Mazda is not the only manufacturer pouring millions of dollars into HCCI, Turbo-Compound and GDI technologies... the car of the future will be cleaner, more efficient and powered by an advanced technology internal combustion engine.
    1
  354. Mazda only makes cars with reciprocating engines now... R.I.P. (rust in peace) Wankel engine 1964- 2012.
    1
  355. All Wankel KKM type engines use the same 4-stroke operating principle as the Otto type engine. each of the three combustion faces completes all 4-strokes just a a 3-cylinder reciprocating engine would, the only difference is the Wankel requires 3 rotations to complete its firing order instead of just 2 revolutions for a reciprocating 4-stroke engine.
    1
  356. The Wankel has more moving parts than a comparable reciprocating 2-stroke. All Wankel engines are 4-stroke but suffered from very poor fuel economy. 2-strokes are smaller and lighter. Gas turbines offer significantly better power-to-weight ratio performance which is why Wankel engines are obsolete.
    1
  357. Not really true, the last production Wankel engine was the Mazda Renesis in the RX-8 and it had over 235 moving and seal related parts and was very unreliable. They still make reciprocating 2-stroke engines but Wankel engines are obsolete because they do not offer any advantages over reciprocating piston engines.
    1
  358. Wankel engines are not similar to 2-stroke engines, all Wankel engine used the exact same 4-stroke operating principle as the Otto Cycle engine. Do you understand how the Wankel KKM type engine works???
    1
  359. Wow! its easy to see from your comment, you are not an engineer or a competent mechanic...
    1
  360. You don't know anything about engines do you?
    1
  361. If the piston does not push the exhaust gases out? Are you suggesting there is no pumping loss during the exhaust stroke???Then explain why does the cylinder pressure rise during the exhaust stroke after BDC??? A turbocharger's exhaust turbine is driven by the TEMPERATURE DIFFERENTIAL of the exhaust gasses Gas Turbines are Heat Engines and comply with Second Law of Thermodynamics and the Carnot Cycle Formula...
    1
  362. Lol!!!! Only if your air intake is at sea level and your exhaust pipe is in outer space... Lol!!!
    1
  363. What causes the pressure difference?
    1
  364. Combustion draws the air in?????
    1
  365. You wrote, quote; "so on a naturally aspirated engine, how is the air being drawn in? by pressure differential" What causes the pressure difference that draws the air into the engine and the cylinder(s)????
    1
  366. Then explain why does the cylinder pressure INCREASE at the beginning of the exhaust stroke??? The pressure inside the cylinder is lowest after 90° ATDC and then increases after 180° BDC. What causes this increase in cylinder pressure????
    1
  367. Are you not familiar with how cylinder pressure is measured son? How do you think you measure cylinder pressure???
    1
  368. @ernie brink rotary hemi Hey Ernie! Please tell us WHY? your engine doesn't run????
    1
  369. @ernie brink rotary hemi Just tell us WHY? your engine still doesn't run????
    1
  370. Eccentric-crankshafts are a type of crankshaft like any other... some people that are not very smart like to use slang terminology it seems.
    1
  371. Mazda announced it will be selling 4-cylinder Skyactiv-X engines in the new Mazda3.
    1
  372. The Skyavtiv-X 4-cylinder IS REAL... not another one of your fake rumors that never comes true! https://www.youtube.com/watch?v=87c48vd9Bvk
    1
  373. The Skyavtiv-X 4-cylinder IS REAL... not another one of your fake rumors that never comes true! WATCH IT HERE... ITS A REAL ENGINE NO FALSE RUMORS! N https://www.youtube.com/watch?v=j5P_sACVuxQ
    1
  374. MAZDA Unveils New 4-cylinder Skyactiv-X engine at Tokyo Motor Show. https://insidemazda.mazdausa.com/newsroom/2017-tokyo-motor-show/
    1
  375. Oh poor jonny... are you still getting duped by fake vaporware scams????
    1
  376. Take a trip down to your local Mazda dealer... no one makes Wankel engines anymore!
    1
  377. That's right jonny... Mazda only uses Skyactiv technology for reciprocating engines... Wankel engines are OBSOLETE!
    1
  378. Diesel engines are Stratified Charge Mode combustion, not homogeneous Charge Mode.
    1
  379. The Wankel is an obsolete design... there is no longer any legitimate research or development on this type of engine... it is now the sole domain of crackpots and scam artist.
    1
  380. All Wankel engines use the 4-stroke operating principle.
    1
  381. @Mandernach Luca Unlike the obsolete Wankel engine, Jet engines are still mass produced and completely dominate the commercial and military aviation industry. Although no longer constructed in Germany, the BMW -003 family is still in production (the longest continuously produced jet engine in history) Cheers!
    1
  382. Rust in Peace Wankel engine 1964 - 2012
    1
  383. Motor and engine are synonymous... Rotor and Piston however are not.
    1
  384. The Wankel is dead... Rest in peace 1964 - 2012
    1
  385. Sadly, the last legitimate manufacture (Mazda) voted to discontinue them 10 years ago... all production ended 7 years ago.
    1
  386. Indeed it does, the Wankel engine is now obsolete in the engine manufacturing industry and is no longer manufactured in serial mass production anywhere in the world today... All 26 of the original Wankel licensee's and their subsidiaries including Mazda have abandoned the Wankel engine.
    1
  387. Don't believe me??? Try stopping by your local Mazda dealer and ask to see the new 2019 RX models.
    1
  388. You failed to mention that this guy is nothing but an amateur blogger... not an automotive engineering expert.
    1
  389. Its seems evident from the video that buying a RX-8 is a very bad investment.
    1
  390. Shops are not laboratories, but they will build anything the customer wants if he has cash to pay for it... this poor sod clearly has more money than brains.
    1
  391. A mediocre and lackluster car that needs a new engine... a new engine that costs more than the car is worth.
    1
  392. Discontinued because the RX-8 was unpopular
    1
  393. Maybe if you think the Pontiac Aztek was great looking too...
    1
  394. These cars are nearly worthless on the resale market because no one wants them...
    1
  395. I am Reality, place you fear and seldom tread...
    1
  396. Jonny you need to stop hiding in you little fake, fantasy world where wankel engines are still relevant, here in the real world they are dead.
    1
  397. No manufacturers use this engine anymore... it is an obsolete design in the engine manufacturing industry.
    1
  398. @Amadeo Bon Wankel engines are obsolete now, as an aircraft engine they were a failure.
    1
  399. @100GTAGUY That is why there are no FAA or EASA certified flight-worthy Wankel engines available. The Wankel engine has always been poorly suited to aircraft applications which they have never been used by any manufacturer for certified production aircraft. Only Graupner GmbH. made RC Wankel engines... and they discontinued them ages ago...
    1
  400. @100GTAGUY Gas turbines offer a Order of Magnitude greater power-to-weight ratio, Power density and time between overhaul performance with greater range and fuel efficiency than any Wankel engine known to ever exist. Cheers!
    1
  401. @Troy Bush Who said the Wankel's fatal flaws have anything to do with a lack of material technology or a lack of computing power??? Your theory is like suggesting that technology can make a square wheel more efficient than a round wheel... it indicates a complete lack of understanding of the inherent fundamental flaws in the Wankel KKM design or why it is now obsolete. Please explain why you would want a gasoline fuel that acts like Diesel fuel??? and how that would solve the flaws in the Wankel engine?
    1
  402. Clearly you do not have a functional understanding of the Wankel KKM engine's fatal flaws and why development of this engine design has been abandoned and is obsolete today.
    1
  403. Please explain what new material shows promises in offering a significant improvement in Wankel engine performance and efficiency and how is this new material(s) is utilized to achieve this improved performance????
    1
  404. Just answer the simple question... "Please explain why you would want a gasoline fuel that acts like Diesel fuel??? and how that would solve the flaws in the Wankel engine?"
    1
  405. Its pretty self-evident that you sir are nothing but a fake and a fraud.
    1
  406. Its pretty self-evident that you sir are nothing but a fake and a fraud.
    1
  407. Thank you proving my point! You sir are a fake.
    1
  408. Yes. Thank you again for confirming you have no clue what you are talking about and are in fact just wildly speculating about a topic you simply do not have the slightest grasp of... You cannot change the unique geometric relationship that allows the Wankel KKM to function as a 4-stroke engine... the shape of the combustion chamber and its volume is fixed within a very narrow range... increasing the static compression ratio can only be achieved by reducing the volume of the chamber recess and this reduction directly and adversely effects ignition, flame propagation and overall combustion efficiency. This also clearly explains why there has never been any successful examples of Wankel engines utilizing the Diesel Cycle. Please stop pretending you understand this problem or how its supposedly can be cured by modern materials or computers... you are simply embarrassing yourself with your ridiculous remarks and childish theories... the only one that looks like a fool here is you son.
    1
  409. Yeah, you look really stupid now so you should go and spare yourself any further embarrassment. Why don't you go post a comment about something you actually understand? Because engineering is obviously not your subject son.
    1
  410. @.SpiinDeX You can't escape the truth... and lies will always be exposed
    1
  411. Lean burning engine produces MORE NOx
    1
  412. +namasayanif Clearly you don't understand the basics of NOx formation...
    1
  413. You seem completely oblivious to the effects of PRESSURE on NOx formation.
    1
  414. No, high pressure is only inherent to engines with high static CRs above 14:1... LIKE THE SKYACTIV-X with 16:1 CR.
    1
  415. Diesel engines operate at far leaner AFRs (up to 80:1) they also produce high levels of NOx due to the high pressures above 14:1 and the EXCESS OXYGEN available to form NOx compounds.
    1
  416. Perhaps you should see a doctor... it could be a brain tumor!
    1
  417. You are nothing but a fake and fraud... go troll somewhere else.
    1
  418. You don't intimidate me kid... but I do feel sorry for you... you and your whole misguided generation.
    1
  419. Your'e not a very good liar kid!
    1
  420. You are a a fake and a fraud kid, you don't fool me.
    1
  421. You got nothing kid... you are a joke!
    1
  422. You are a FAKE kid... get over it!
    1
  423. Yes, I fully understand that you are a fake and a liar... you are not fooling me son.
    1
  424. I wouldn't call a 53% failure rate under the warranty period "reasonably reliable"
    1
  425. Bathhurst? It sounds like one of those rallye races on temporary street circuits in new zeeland, is that the same thing I'm thinking of?
    1
  426. Australian engineers? Like automotive engineers??? Australia doesn't make cars. I thought they imported all their cars from Korea or China now???
    1
  427. But it seems not good enough to make cars...
    1
  428. Wankel engines are dead... they have been obsolete for years.
    1
  429. +Darian Murcott-Istead Pre-mixing is monumentally DUMB... its nothing but a false urban myth.
    1
  430. Ernie Brink, Why does your engine not run????
    1
  431. Car companies only make cars that actually sell...
    1
  432. @SidewaysGts Mazda discontinued the RX brand... because no one bought them anymore.
    1
  433. @SidewaysGts 100 Million new cars sold last year... NONE of them had a Wankel engine.
    1
  434. But Johnny, SPARCS was a colossal financial and technical failure... Garsides was fired from Norton, they went bankrupt foolishly investing in his incompetent engineering skills.
    1
  435. Insert homosexual rotard comments below.
    1
  436. Its already supercharged.
    1
  437. The Mazda RX-7 is a better example of how they Don't work Lol!
    1
  438. Good question, increasing width of the seal actually reduces the ability to form a gas tight seal, increasing surface area reduces the pressure against the housing surface. The other problem is weight, a heavy seal causes chatter (called devil's nail scratches) and leaves damaging marks on the surface of the housing. The apex seal must be allowed to move in and out a large enough tolerance to conform to the considerable expansion, contraction and torsional movement but must be light enough that the minimum about of spring tension is used... heavier seal? More bounce... Strong springs more wear.
    1
  439. The diameter of the housing is a serious limiting factor in the Wankel design.. as the radius increases so does the surface speed the seal must travel across the surface at the same rpm... The largest diameter Wankel ever built was 41 liters by Ingersoll-Rand and had a Radius of 424.18 mm ( 16.7" inches) but was limited to rotor/piston speeds of just 400 rpm.
    1
  440. The other problem that faces all internal combustion engines the Conflageration Velocity or "Flame Speed" in a gasoline piston engine this is an issue when Bore diameter reaches 100 mm or 4 inches... as you increase the bore diameter beyond this the engine operating rpm is reduced because there simply is not enough combustion dwell (time) for the air fuel mixture to ignite and burn completely. In the Wankel this effects both the width and the diameter of the housing and limiting the practical size.
    1
  441. Mazda announced last week it is taking orders now for delivery in Europe starting in September prices start at $23,000 USD
    1
  442. No, because Diesel is very low octane
    1
  443. Mazda is a joke...
    1
  444. Sorry you can't afford a better car....
    1
  445. Diesel fuel is not sold by Octane Rating... but it still has a measurable octane rating usually around 15 to 40 RON.
    1
  446. Wtf does Diesel have to do with Skyactiv-X??? At least I can afford one...
    1
  447. Diesel engines run using only STRATIFIED CHARGE COMPRESSION IGNITION... it will ignite and burn almost anything flammable... regardless of octane rating
    1
  448. The kind that hold there resale value... Engines that use Homogeneous Charge Spark Ignition have a minimum fuel octane rating requirement BECAUSE AF charge could self ignite... this is a bad thing. Diesel engines do not have this requirement because they use Stratified Charge Compression Ignition.
    1
  449. Most fans of the Wankel engine these days are adolescent boys... so its just targeted demographics really.
    1
  450. No, There are no Diesel Cycle Wankel engines. Several failed attempts have been made but all were ultimately failures, the Wankel simply cannot support compression ignition because it cannot reliably generate high enough compression.
    1
  451. So did Mazda... they only make reciprocating engines now.
    1
  452. All of David Garside's inventions have been failures... He is responsible for Norton going bankrupt.
    1
  453. Yes, but Mazda engine isn't really compression ignition.
    1
  454. Wankel engines are obsolete
    1
  455. Mazda confirms 100% Electric and Plug-In Hybrid but No Rotary Range Extender. https://thedriven.io/2019/06/11/mazda-confirms-100-electric-car-model-for-2020/
    1
  456. LATEST NEWS JULY 2019! MAZDA CONFIRMS NO ROTARY RANGE EXTENDER. https://thedriven.io/2019/06/11/mazda-confirms-100-electric-car-model-for-2020/ Reply
    1
  457. These engines are obsolete because they have some very serious fundamental flaws in their basic design.
    1
  458. +Cyka CheekiBreeki Obviously they were wrong...
    1
  459. +Cyka CheekiBreeki The Rotary engine is very primitive, this is because it has been obsolete for nearly 90 years... I think you mean to say WANKEL engine? The Wankel KKM design is also obsolete... and this is because it reached the end of its development potential.
    1
  460. @Lyle Stavast Really? Because Diesel engines were exempt from emissions regulations in California until 1997 and were previously classified as a low-emission alternative fuel vehicles.
    1
  461. NSU sold the licensing rights to the Wankel KKM engine design to several motorcycle manufactures. including; YAMAHA KAWASAKI SUZUKI BSA SACHS (HERCULES) sold to NORTON MZ (DKW) and VAN VEEN also made Wankel KKM powered bikes
    1
  462. @Micah Bennett Here is a Rotary bike.. the MEGOLA, the one that inspired Felix Wankel. https://www.youtube.com/watch?v=c4Cq49IDfOc&t=54s
    1
  463. @100GTAGUY Norton only sold WANKEL powered bikes... Not Rotary powered bikes.
    1
  464. @100GTAGUY MEGOLA made Rotary powered bikes! https://www.youtube.com/watch?v=qAQuljp-atA&list=PLmhSXyOMooSlhNQZShFYxRRiz2pB_jl-g&index=12&t=0s
    1
  465. @100GTAGUY Rotary engine bike MEGOLA https://www.youtube.com/watch?v=c4Cq49IDfOc&t=54s
    1
  466. @Just A P39N Uh, Hey do you mind not trolling my comments? It's a bit annoying and a pain to delete them from my inbox. Other than that, I appreciate the thanks. Cheers!
    1
  467. @John Burns Just the facts here Johnny... not like your false rumors!
    1
  468. Sorry jonny but your false rumors never come true do they!
    1
  469. Jonny please go down to your local Mazda dealer and see for yourself... your delusional fantasies about new Wankel engines are not true... they do not exist in the real world lad, it all in your crazy head!
    1
  470. Yes jonny you are sad and tormented... by the false hope and phony rumors that Wankel engines are coming back... Rumors that never come true!
    1
  471. Motor1 is an amateur blogsite... nothing but a clickbait rumor mill.
    1
  472. Where is it Johnny??? Mazda has not revealed any new Wankel engines or Wankel powered vehicles since development was cancelled in back in May 2009.
    1
  473. Wankel engines are obsolete technology... not even Mazda sells them anymore. Don't believe me? Just go down to your local Mazda dealer and see for yourself.
    1
  474. There are no Wankel manufacturers... Wankel engines are obsolete.
    1
  475. Hi Johnny did you psychiatrist give you some new meds???
    1
  476. Johnny stop by your local Mazda dealer and see for yourself... they don't make Wankel engines anymore... Mazda dropped these unreliable engines like a bad habit years ago!
    1
  477. I'm not making things up johnny... go down to your local Mazda and see for yourself. Mazda does not make them anymore... have not made them IN YEARS!
    1
  478. That is right johnny, everything you say is made up...
    1
  479. @WALTERBROADDUS Just the facts here my novice friend, some people are under the delusional impression that Wankel engines were not a massive industry wide commercial failure and are in a deep state of denial regarding the fact that the Wankel engine has been obsolete for many years.... even Mazda dropped this inferior technology like a bad habit.
    1
  480. @WALTERBROADDUS You don't know much about the automotive industry do you son?
    1
  481. @WALTERBROADDUS Its not an insult if its true, its just embarrassing for you.
    1
  482. @John Burns Just the facts here Johnny, the Wankel engine is obsolete now, it now long manufactured in series mass production anywhere in the world today ... it is now the sole domain of crackpots and fools like you.
    1
  483. @John Burns I know for a fact you are a liar... there is no 2020 Mazda RX-9 or any other Wankel engine vehicle offered by Mazda.
    1
  484. @John Burns What’s Hot and WHAT'S NOT in the 2020 Mazda Lineup https://autowise.com/2020-mazda/
    1
  485. @John Burns Johnny, you have been told over and over again, Mazda does not make cars with Wankel engines anymore... just go down to your local Mazda dealer and see for yourself.
    1
  486. Then explain why are they obsolete in the auto industry kid?
    1
  487. This month marks the 10 year anniversary of Mazda's decision to cancel the RX-8, the entire failing and unprofitable RX brand and cancel further development of production Wankel engines... its been a quarter of a century now since Mazda unveiled a new production Wankel engine.
    1
  488. You'd rather own a rwd underpowered car with zero hope of modding it? Yeah the RX-8 was a huge flop remember?
    1
  489. Yeah, Mazda tuners seem to get their parts off of ebay... says a lot about Mazda owners...
    1
  490. Indeed they did, The MX-5 is a huge success for Mazda and is the best selling sports car in the world under $50,000.
    1
  491. Yes, it does mean its better... just the facts here.
    1
  492. I've never seen a Mazda that can touch my M3 unless it has more invested in it than the M3 costs... of course they are still stuck driving a Mazda and not a BMW.
    1
  493. The Mazda 787b was never banned, that is merely a false urban myth. Mazda announced in 1990 that it would retire the slow and very uncompetitive 787b after the end of the 1991 season. The FIA never banned the 787b or the Wankel engine...
    1
  494. Mazda is the brand you buy when you can't afford something better..
    1
  495. YOU DON'T ACTUALLY KNOW MUCH ABOUT CARS DO YOU?
    1
  496. The Wankel engine? The Miller Cycle engine? The RX-8? Do you have a crack cocaine problem? Because you sound like a crackhead.
    1
  497. The Wankel engine put Mazda into bankruptcy in the mid 1970's and was acquired by FORD in a court ordered bankruptcy sale! The Failure of the RX-8 required the Japanese Government to step in a guarantee $3 BILLION dollars in loans to bailout Mazda... Mazda board voted to end further development and production of Wankel engines as part of it recovery plan. Just the facts here... your lack of factual knowledge makes your argument weak.
    1
  498. I'm am sorry you can only afford junkyard cars cobbled together with junkyard parts...
    1
  499. All of my degrees are from public learning institutions... I don't come from wealth, my success is self-determined... The term "Ivy" league only refers to regional collegiate sports program by the way.
    1
  500. English is not my native language and I did not major in English studies. Mocking my English skills won't prove your argument or make you look more intelligent. I'm actually considering trading my RS America for a 430... I don't particularly like the LaFerrari or any other hybrids.
    1
  501. +David Schwartz Well, I see more than a couple LS swapped RX-8s out there now... I think the reason is not so much that the 1953 designed small block Chevrolet is the greatest design in history as much as the 1960's Wankel KKM design or the 1970's designed Mazda 13b series engine its based on are so horribly bad... when a completely stock LS motor produces +50% more power, double the torque! and still delivers better fuel economy and reliability? Its no wonder why the Wankel engine is obsolete now! Cheers!
    1
  502. +David Schwartz The beauty of the SBC/LS series and what has made it so successful for so long is that it was very advanced for a automobile engine at the time it was introduced (flat-heads were still common), and the engine was simple and reliable.. Its basic design allowed it to be adaptable enough to take advantage of new advancements in parts and materials technology and its quench type (wedge) chamber combustion efficient enough to continue to meet current emission standards. Its availability and dirt cheap cost make it hugely popular in the custom and performance aftermarket... but it is also become so common in the US and Canada that it is frankly becoming a little boring, show up at a car show? And sometimes it is all you will see. The days of the OHV push-rod V-8 may soon come to an end in production cars... the one thing that the SBC cannot deliver is good enough efficiency to meet the upcoming fuel consumption and emissions standards for much longer.
    1
  503. The center of the automotive engineering universe is still remains in Germany... where the automobile was invented, Japanese brands are all cheap copies of the original which always appears in Europe first... not Asia.
    1
  504. @787brx8 Hey kid! Have you been by the local Mazda dealer to check out the new 2019 RX models??? Lol!!!!
    1
  505. @787brx8 1.37 Million Older Mazdas Recalled for Risk of Ignition Fire https://www.caranddriver.com/news/a15352288/1-2-million-older-mazdas-recalled-for-risk-of-ignition-fire/
    1
  506. @787brx8 Mazda to Recall 52,000 Tribute SUVs over Fire Risk https://www.autotrader.com/car-recall/mazda-recall-52000-tribute-suvs-over-fire-risk-148603
    1
  507. @787brx8 Mazda recalls nearly 70,000 sports cars due to fire risk https://www.upi.com/Business_News/2016/11/15/Mazda-recalls-nearly-70000-sports-cars-due-to-fire-risk/2161479230351/
    1
  508. @787brx-8 Hey kid! Have you had your car checked???? MAZDA RX-8 ON FIRE https://www.youtube.com/watch?v=wH4fTU-16J8
    1
  509. @787brx8 MAZDA RX-8 ON FIRE!!! https://www.youtube.com/watch?v=QthCUo-Mb4s
    1
  510. @787brx8 RX-8 with a FLAME JOB https://www.google.com/search?q=mazda+on+fire&tbm=isch&source=iu&ictx=1&fir=TijYJ7GlBNMieM%253A%252CPYD1o0jwLvavJM%252C_&usg=AI4_-kQgwaY2D696F5iQ2LsXKQUGJQOuhw&sa=X&ved=2ahUKEwjk4Zn8iqjgAhWrIjQIHQmhBdYQ9QEwAHoECAUQBA#imgdii=LPRdVyF3KMR5EM:&imgrc=9cXRcEp3ApFtUM:
    1
  511. @787brx8 What left after your RX-8 catches fire https://www.google.com/url?sa=i&source=images&cd=&cad=rja&uact=8&ved=2ahUKEwistL2VjajgAhUmxlQKHbKVDXgQjRx6BAgBEAU&url=https%3A%2F%2Fwww.rx8club.com%2Frx-8-discussion-3%2Frx8-remnants-fire-pics-98860%2F&psig=AOvVaw1CqUBS6LppGLefvTb75Pbu&ust=1549576110368643
    1
  512. @Mr kool Aid Man You said, quote; "I work at Notre Dame university and in the aerospace department they are working on a fuel that has the same properties as gasoline but acts like diesel." Please explain why you would want a gasoline fuel that acts like Diesel fuel??? and how that would solve the flaws in the Wankel engine?
    1
  513. ICEs are not going anywhere... They are here to stay, because there simply is nothing better available.
    1
  514. R.I.P. Wankel engine 1964 - 2012
    1
  515. NSU MotorenWerkes AG. (the company that invented the Wankel engine) went bankrupt and was purchased by Volkswagen becoming a division of Audi The new company abandoned development of Wankel engines just like the rest of the 26 companies including Mazda that bought the rights to build them.
    1
  516. +Andrew Wankel engines have been obsolete in the engine manufacturing industry for several years now..
    1
  517. +Mike The Mechanic Can you explain how the fuel injector "heats" the fuel?
    1
  518. Ernie Brink, Can you please explain why your engine does not run at all????
    1
  519. @Vladimir Lucifer The injector doesn't heat the fuel dummy... you don't know anything about fuel injection do you???
    1
  520. @Vladimir Lucifer Well, its obvious you are no engineer... the fuel pump is cooled by the fuel and so the undergoes some heating during pressurization. The Injector however releases pressure... thus COOLING the fuel.
    1
  521. @Vladimir Lucifer Well if your dumbass theory was true.... modern refrigeration and air conditioning would not work... a trip to the frig to grab a beer proves you are a complete moron.
    1
  522. @Vladimir Lucifer But we are not talking about the fuel pump dummy... we are talking about the INJECTOR
    1
  523. *WRONG! Heat is added when a fluid is compressed or pressurized. The Injector RELEASES pressure which cause cooling. The fuel goes from a high pressure liquid and is atomized and vaporized. This PHASE CHANGE cause a significant DROP in temperature.*
    1
  524. @Vladimir Lucifer You obviously do not understand the concepts of Latent Heat or Fluid Dynamics...
    1
  525. @Vladimir Lucifer You do not understand how fuel injection works or the basic fundamentals of refrigeration or automotive air conditioning. Automotive air conditioning works by compressing a refrigerant gas into a liquid under pressure and is release via a injector nozzle into the evaporator where in cools by absorbing latent heat as the pressure drops and the liquid evaporates into a vapor/gas.
    1
  526. @Vladimir Lucifer YOU ARE WRONG! You are just too ignorant to understand why you are wrong.
    1
  527. @Vladimir Lucifer Yes, the evaporating fuel DOES COOL THE AIR DUMMY!
    1
  528. @Vladimir Lucifer I can only assume because you are stupid and do not understand anything going on in the world around you. You clearly do not understand thermodynamics or fluid dynamics and apparently the concept of Latent heat is completely unknown to you.
    1
  529. @Vladimir Lucifer The only defect here is in your brain son... stop pretending to be educated as a scientist... you are not fooling anyone.
    1
  530. @Vladimir Lucifer You are an idiot, please stop pretending to be something your are not.... educated.
    1
  531. @Vladimir Lucifer The injector releases the pressurized fuel causing it to Atomize and Vaporize this evaporation causes COOLING The Fuel injector does not heat the fuel IT COOLS THE FUEL as it enters the engine.
    1
  532. @Vladimir Lucifer The injector does not HEAT the fuel.
    1
  533. @Vladimir Lucifer What does a HYDRAULIC system like gasoline Fuel injection have anything to do with "Pneumatics"????
    1
  534. @Vladimir Lucifer Sorry kid, but you are not fooling anyone here with your tech gibberish nonsense.
    1
  535. @Vladimir Lucifer WRONG! The combustion recesses in the piston/rotor face have NO EFFECT on displacement as they are not part of the swept volume of the engine.... you need to learn what DISPLACEMENT is and how it differs from STATIC COMPRESSION RATIO!!! Again you FAIL!!
    1
  536. @Vladimir Lucifer WRONG AGAIN KID! Pneumatics is the study and application of compressed air and gases... not liquids, that is called Hydraulics
    1
  537. @Vladimir Lucifer Keep up son, the more you talk the dumber you look.... I don't have to make you look like a fool... you are doing all by yourself! Lol!
    1
  538. @Vladimir Lucifer WRONG! The Injector does not heat the fuel... it causes it to COOL.
    1
  539. @Vladimir Lucifer WRONG DUMMY! the study of fluids is called FLUID DYNAMICS
    1
  540. @Vladimir Lucifer No! It Does not... if vapor forms between the pump and the injector? The engine will stumble and die, this fault condition is called VAPOR LOCK
    1
  541. @Vladimir Lucifer WRONG! Fuel injectors evaporate fuel due a sudden DROP in pressure... this effect causes COOLING
    1
  542. @Vladimir Lucifer I'm not going anywhere dummy, I will just keep pointing out your stupid mistakes.
    1
  543. @Vladimir Lucifer The injector will cool the fuel and the surrounding air due to the Latent Heat of Evaporation... they do not teach thermodynamics in your 7th grade classes.
    1
  544. @Vladimir Lucifer VAPOR LOCK
    1
  545. @Vladimir Lucifer "The study of the FLOW of the girls and behaviors are fluid dynamics." I think you need to study the flow of girls... because you suck at Fluid Dynamics.
    1
  546. @Vladimir Lucifer Evaporation causes COOLING
    1
  547. @Vladimir Lucifer The injector does not heat the fuel IT COOLS IT!
    1
  548. @Vladimir Lucifer I think you need to move to a country with better schools.
    1
  549. Mercedes unveiled their version 11 years ago...
    1
  550. True, Mazda probably won't be around much longer... most likely they will be bought out by Toyota.
    1
  551. How is that any different than a reciprocating engine?
    1
  552. I'm sorry, you seem very confused about how the Wankel engine works... each of the 3 combustion faces acts exactly like a piston.. so you can't compare it to a single piston engine... only a 3 cylinder 4-stoke reciprocating engine which also has more than one stroke at the same time.
    1
  553. NO ROTARY ENGINE June 6th, 2019, Mazda's President says no rotary range extender on the way, says quote "we had to put this on the back burner, and we have no time frame." https://europe.autonews.com/automakers/mazda-counts-evs-reach-eu-co2-goal
    1
  554. No, Skyactiv-X is a reciprocating engine type.
    1
  555. The next big oil crisis is coming sooner or later it will happen again... Mazda doesn't want to get caught with its pants down like it did the last two times... Mazda may not survive another bankruptcy.
    1
  556. Sort of, but just some of the time...
    1
  557. Its not, Mazda's CEO said they have no plans to revive the discontinued engine. The Wankel is now an obsolete technology... it is no longer commercially viable because it simply cannot compete with modern reciprocating engines.
    1
  558. The Wankel engine is not popular for anything... which is why they are no longer sold.
    1
  559. No, All Wankel KKM engines use the exact same 4-Stroke operating principle as the reciprocating Otto engines... the only difference is the Wankel requires 1080° of rotation to complete its firing order sequence instead of 720°.
    1
  560. Ernie Brink, why doesn't your engine run?
    1
  561. But why doesn't your engine design work???
    1
  562. How will you repay your share holders?
    1
  563. All Wankel engines use the same 4-stroke operating principle as the Otto engine.
    1
  564. Not exactly... while Diesel engines produce far less of the invisible kinds of pollution, they still produce invisible NOx emissions which can cause lung tissue damage and cancer.
    1
  565. Dude with an RX-8 looked sad sitting in the tow truck... dragging his car with a dead engine back to the Mazda dealer for the third time...
    1
  566. Not detonation... the process is called Deflageration.
    1
  567. Particulates can be observed as black soot... the other emissions like NOx are completely invisible, at least until they are exposed to sunlight in the atmosphere and form photo-chemical smog.
    1
  568. Not rare... just less common.
    1
  569. We are talking about a 2.5 liter that is more efficient than the engine in the Toyota Prius...
    1
  570. Nothing more expensive and has lower range performance than a electric vehicle...
    1
  571. Mercedes-Benz unveiled their HCCI engine 10 years ago...
    1
  572. https://en.wikipedia.org/wiki/Mercedes-Benz_F700
    1
  573. Mazdas are cheap disposable cars.
    1
  574. @BoogieDownProduction Independent testing shows that the highest crash safety ratings are the European manufacturers.
    1
  575. @BoogieDownProduction I am really starting to thing you are an asshole troll that knows nothing about cars...
    1
  576. BMW, Mercedes, Audi and Volvo top the list of safest cars. https://cars.usnews.com/cars-trucks/safest-car-brands
    1
  577. I wouldn't want to be in either one of those cars during a crash...
    1
  578. John because apex seal are one of the fatal flaws in the Wankel engines and a major reason why they are obsolete today.
    1
  579. That is right silly lad, its no longer a problem ... no one sells Wankel engines anymore... NOT EVEN MAZDA!!! Lol!!!!
    1
  580. Why are you in such denial of the truth Johnny??? Just go down to the local Mazda dealer and see for yourself, Mazda does not make Wankel engines anymore.... no one does.
    1
  581. @Vladimir Lucifer I didn't know you were Gay.
    1
  582. @Vladimir Lucifer Its OK to be GAy... especially if you drive an RX! Lol!!!
    1
  583. @Vladimir Lucifer I would never buy one of those shitty cars... only gay people and people that know nothing about cars.
    1
  584. @Vladimir Lucifer ESPECIALLY look it up so you don't look like a fool again.
    1
  585. @Vladimir Lucifer So you "suck" at being gay too? Lol!!! * Really? because you are the one that has exposed yourself as being ignorant about automobiles and for being gay... looks like you are your own worse enemy son...
    1
  586. @Vladimir Lucifer Girl, it sounds like you know even less about cars than being gay.
    1
  587. @Vladimir Lucifer Who blew their RX-7??? I don't blow anything... I'll defer to your expertise if I want to know about blowing something.
    1
  588. @Vladimir Lucifer You have already admitted to all the stereo types girl, that all rotards are gay and know nothing about cars.
    1
  589. @Voldimort Lucifer The only argument here was if Diesel emissions were making frogs gay... and you busted in to announce what we are ready know... that Mazda makes cars for gays.
    1
  590. @Voldimort Lucifer YES, you have exposed yourself as being ignorant about cars and vaginas...
    1
  591. @Voldimort Lucifer Are you alone with little boys???
    1
  592. @Cory Mck "Diesel emissions are making the frogs gay" I hope that puts everything into proper perspective for you...
    1
  593. @Cory Mck Are you implying that a minor could not be diagnosed or charged as a pedophile??? I certainly hope not...
    1
  594. @Cory Mck Dude, you seriously need to lighten up and get a life...
    1
  595. @Cory Mck Diesel emissions are making the frogs gay
    1
  596. @Cory Mck You don't intimidate me son, you are nothing but an angry little troll.
    1
  597. @Cory Mck But what about the gay frogs???
    1
  598. @Cory Mck "Fresh Pasta"
    1
  599. @Cory Mck You must be a very naive person... you seem unaware of the significance of "Voldimort Lucifer" and "Fresh Pasta".
    1
  600. @Cory Mck What is wrong with you? Are you a member of NAMBLA??? YOU SICK PIECE OF SHIT!
    1
  601. Without Exhaust After-treatment YES, compared to Otto engines Diesel engines produce very little HC and CO emissions (they were completely exempt from emissions controls in California until 1997) but in terms of NOx and particulate emissions Diesel are worse... not a big issue in rural areas or cold wet climates... but in some large urban areas it can cause serious air quality issues.
    1
  602. Fuel is MUCH CHEAPER in the U.S. and Diesels cost more... I owned a Diesel 1984 Ford Ranger... Skyline didn't meet emissions or safety regulations in many countries but still allow limited edition cars as exempt, it did not warant the extra expense of building a EPA/CARB compliant version... it would not pay for itself.
    1
  603. That same argument works both ways... if the price of gasoline and taxes were the same in Germany as in the U.S.??? You would see a lot more Chevrolet Corvettes on the autobahns.
    1
  604. @Yoseob Yang Indeed, you need to have a high I.Q. level to be an engineer... while anyone can be a "rotard"
    1
  605. Well technically they cheated but the real reason they won was pure luck... all the points leaders crashed out early in the race.
    1
  606. +scottjinx The Wankel engine IS DEAD... Remember?
    1
  607. The Wankel design cannot support Diesel cycle compression ignition.
    1
  608. But explain why Wankel engines have never been sold commercially in fixed rpm applications??? Wankel engines are an obsolete technology that is no longer manufactured anywhere in the world today... Even Mazda abandoned the Wankel engine a decade ago.
    1
  609. Mazda no longer manufacturers Wankel engines and ceased all development of production engines in May, 2009... the last prototype ever made was last seen 11 years ago and no new prototypes exist.
    1
  610. Still spreading false rumors about Wankel engines that do not exist??? You realize that all of your false predictions have never come true... every year they turn out to be nothing buy fantasy tales and outright lies.
    1
  611. Not really, all of the best production UAVs use reciprocating piston engines made by Rotax... most of the vaporware Wankel scams have gone defunct now.
    1
  612. Childish insults won't make you look very mature... or prove your false rumors!!!
    1
  613. Jonny your fake rumors cannot change the truth.
    1
  614. Fake rumors don't come true Johnny!
    1
  615. Mazda dropped the troublesome Wankel engine like a bad habit.
    1
  616. Mazda's CEO confirmed that the RX-9 was a hoax... it was nothing but a false rumor started by bloggers...
    1
  617. Mazda Vision Coupe Skyactiv-X 4-Cylinder Next Generation Technology. https://insidemazda.mazdausa.com/newsroom/2017-tokyo-motor-show/
    1
  618. Because battery electric vehicles are fatally flawed and will never replace internal combustion engines.
    1
  619. Better? absolutely False, While electric motors can achieve up to 97% efficiency... rechargeable batteries are certainly not energy efficient or environmentally freindly.
    1
  620. "We just have to improve the energy density of the batteries." Wow! I wish I had a dollar from every time I heard that benighted remark... Unless you discover a new stable element on the Periodic Table that has significantly more electrons in its valance than Silver or Copper??? Battery energy density will never be enough to replace liquid fuels like hydrocarbons.
    1
  621. Clearly you are not educated in the fields of science and engineering.
    1
  622. "The next 10 years are going to be very exciting." Someone said that exact same thing to me 10 years ago... and they were just as wrong then as you are right now.... BEVs account for less than 1% of the global vehicle fleet... a mere fraction of the its market share over 100 years ago.
    1
  623. Then why do pretend to be knowledgeable regarding rechargeable battery development??? Wrong, nearly one third of all the automobiles were battery-electric prior to 1915... until Charles Kettering invented the automatic electric starter for internal combustion cars... rendering electric cars obsolete over night. While electric vehicles remained in relatively few specialty niche applications it has never been competitive with ICEs. Now that society has been poisoned by fake news and the emergence of radical quasi-religious political environmentalism... we have EVs that are mandated by law and lose money despite massive tax subsidies. Its called fake news and dumbing-down in the _Information Age_.
    1
  624. Wow! You really don't know anything about batteries do you... how can you be so confident about a technology when you don't know anything about it. 360mJ (100 kW/hr) of worth of petroleum weighs just 35 lbs... Do you know what the best rechargeable car battery (Tesla model S 100D) weighs?
    1
  625. What you are eluding to is everything you know about rechargeable battery technology is wrong and comes from dodgy investment scams and political rhetoric. Because I can read the Table of Periodic Elements carbon does not have more free electrons in its valance ring than Silver or copper... and these materials cannot match liquid hydrocarbons.
    1
  626. The Tesla's battery weighs a staggering 1,440 lbs!!!! that is three quarters of a TON! and it only stores the same energy as 8 gallons of petroleum weighing 35 lbs. If battery density is "inching forward" it still has MILES TO GO and it has to compete with improvements in internal combustion engines leaving no net gain.
    1
  627. "big car companies are onbaord with EVs" They are??? Really? because those are same people that said we would have electricity too cheap to meter and drive supersonic flying cars...
    1
  628. The same people said we would all be driving electric cars by 2020... Lol!!!
    1
  629. So you didn't know??? The big car companies do not want to sell EVs.
    1
  630. I don't see any affordable electric cars... that are not glorified golf carts...
    1
  631. Norway is not a model that can never work in the rest of the world, its a socialist country that does not have a true free market economy... It has a surplus of hydro power and sells its large petroleum production for export to be burned elsewhere... Norway has serious air quality issues because most homes still burn wood for heating...
    1
  632. Wow! serious... So you didn't know that they are already forced to sell EVs... do you live in some kind of delusional fantasy world where everything you know comes from advertising, fake news and radical socialist politics??? Talks is cheap, China is more than 50 years behind the West in terms of vehicle emissions and air quality standards. Germany and the UK have not passed any legislation banning ICE cars. France just rejected the ICE ban by rioting in the streets... the French government has done a complete 180° on its carbon emissions policy and Greece has also shelved its ban indefinitely. So please spare the "new green deal"fantasy bullshit... its just a scam to double the price of cars, energy and taxes and make people like Elon Musk another $25 BILLION dollars richer... I can't believe people are really that stupid.
    1
  633. So? What is your point? Yeah, you say a lot of things that are not true... That's right, China does not have a free market economy and they could care less if you lose your job to someone in China. Really, because someone said 15 years ago China would be making cars that would meet US vehicle emissions... but they still don't. True, because China simply dumps its toxic waste from solar panel manufacturing... they and Elon Musk don't give two shits about the environment... just fooling suckers like one into handing over all your money for products that cost more and deliver less... You mean the people that expose the fake news and government corruption like legislating and officially endorsing products that are not commercially viable and need to be subsidized with taxpayer funds... no matter how you slice it... its still corruption.
    1
  634. Very few countries do care about the environment... most countries are concerned with making money and forcing people to pay more for inferior technology based on a false sense of fear of global destruction or religious beliefs that you are a bad person if you don't live in fear of it. Elon Musk didn't found Tesla... he stole it from the guy that did, and when that guy tried to start his own company again (Fiskers) Musk sued him. Musk was fired from Paypal because he was lining his pockets with investor funds... the same scam he is running at Tesla.
    1
  635. The ozone hole threat is a hoax... no accurate model to predict its behavior has ever been produced...
    1
  636. You wrote; quote "If Elon only cared about money then why did he make all the Tesla patents free and open for any company to use." Why did Musk sue Fiskers????
    1
  637. Musk has been fired or forced out of every company he has ever worked for... he is a liar and a crook.
    1
  638. Musk was fired from his own companies TWICE! from both Zip2 and Paypal... he is currently under intense pressure from investors to leave Tesla and his company SpaceX is in serious financial trouble with another round of layoffs expected soon.
    1
  639. Let Elon tell it himself that he was fired from Paypal Elon Musk Talks About Getting Fired As Paypal CEO watch it here; https://www.youtube.com/watch?v=wKacw4zHj-Q
    1
  640. Indeed, the "Ozone Hole" has never behaved as predicted by the model which the doomsday hoax was based on...of course billions of dollar were made based on these false predictions.
    1