Comments by "Oblithian" (@Oblithian) on "Engineering Explained" channel.

  1. I would point out that a double efficiency rotory is still inefficient by modern standards, but certainly good enough to make it non-prohibitive for most buyers.
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  2. This car.... Facepalm.
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  3. Can you make a drawing illustrating exhaust crackle when letting off the throttle? (Not that it's a bad thing, it just sounds cool)
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  4. I declare this test biased and worthless. Without knowing who made which pads or that a reasonable selection of pads was done we cannot assume the manufacturer did not select their worst competition for this test. It might as well be the Chevy tool box test. Not to mention it does not account for material differences. Every brake pad will be different. However, ceramic vs semi-metallic pads have known differences in braking properties. Picking and choosing which pad is what material can easily skew the results in the desired favour.
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  5. lol. Whenever the media reports on scientific research.
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  6. You missed the Cons
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  7. I don't agree that pushrods are simpler/more reliable. Perhaps simpler than a sohc depending on the design, but DOHC engines are generally only cams and lifters it doesn't get much more simple than that (by component number, and directness anyway). With DOHC you move the complexity from a bunch of small oscillating parts to a few large rotating ones. There is sturdiness in size. Weight is definitely an advantage.
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  8. Given the number of microfisures that accumulate in a cylinder head, the chances of head leaking coolant probably increase, especially given past VW quality issues. But yes an actual exhaust leak would theoretically be lower given the cooler temperature, thicker walls, and a huge reduction in mated-surface area.
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  9. If Toyota built the car and bought the engine I would be ok with it. If toyota bought the car and made the engine, I would be less ok with it, but more ok than it stands. But Toyota bought both and modified the exterior... at the BMW factory.
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  10. lsd would certainly make it better
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  11. The people most upset are the supra fan's who love the label not the car, and see people voicing concerns. Then the people who loved and bought Supras brand new (well over 30 yrs old) who don't see the cars they like. The 2JZ fanatics will always be obsessed with the 2JZ, those ones are upset an old engine wasn't reused... but that would be ridiculous anyway. They're just loud more than anything. ...Then there's everyone else who just finds Toyota's lack of committment amusing, and the car a bit underwhelming for the hype.
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  12. hahaha. As an aside That Guy, yes a new car for that cheap is going to be a good deal with almost no exception. But VWs do have poor reliability down the road (contrary to popular conceptions).
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  13. #WheelLockUp
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  14. Don't you know? Telling americans they should shed a few pounds is a losing battle.
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  15.  @youngroosevelt38  Maybe the drunk recollection of the FT-1, It is definitely restricted to the bodyshape of the Z4. But where changes were made, it has the angular appearance of the current Toyota line... Which is where a lot of the ugliness comes from.
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  16. That is a lot of money. At least the v12 BRZs were novel.
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  17. If youtube allowed picture comments I would be posting a Gif of the guy shelling out cash, but have clutches insted of dollars.
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  18. 1. No it is not always best, we will go to 2 and then come back. 2. As answered above, generally acceleration in lower gears is more efficient due to mechanical advantage in gearing. At higher gears you have less torque so you must dump more fuel in to produce the torque needed to increase the speed (then there's also engine and drivetrain momentum). (Back to 1) So when you are accelerating or will need to accelerate and you are in a high gear, you are wasting a lot of fuel due to the increased load. However, cruising on a flat surface you want a higher gear (eventually there are diminishing returns) because at lower gears your engine's speed must be much higher to maintain that speed (engine speed is related to, though not the exclusive determinate of fuel use). You want to seek the balance point where the engine is spinning as slow as possible, while doing as little work as possible for the given speed (if you plotted them on a line graph you would find an intersect). If you look at torque curves your engine's torque will sharply increase after a certain rpm. If you let the rpms drop too low the torque will be bellow that which is needed to maintain your speed and the engine will stall. If you are "lugging the engine" as described, you are pushing it to the limit of what it can do, and that makes your engine sad, and everyone else angry. Forced induction changes the curves so it will affect where the point of maximum fuel efficiency is , otherwise it is largely the same theory.
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  19.  @jdmr1c3ing  They didn't though, they just changed the paneling (and added a roof) likely based on the M coupe. It still will be made at the same factory and likely involved BMW engineers. It's not like Toyota built a chassis and is having the parts shipped to be installed. Or that the subframe is different, or suspension, etc. At least the interiors look different *No wait it is based on the previous generation z4. Still, some difference, and I very much appreciate that.
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  20. sitcommander Then does that mean his tractor is basically a P1?
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  21. Manual transmission, forced induction/exhaust, suspension, tires.
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  22. Rev hang is so annoying some times.
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  23.  @gummostump4217  Yes, studded tire tests in my country show that they are good on pure ice but worse on mixed surfaces and dry pavement (than an identical but unstuddable design).
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  24.  @psykoklown874  Some brands create the same tread but one is studdable, and the other is not. That provides the best test, as making a tire studdable alters its unstudded performance.
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  25. Yeah, almost every GT86 owner has buyers remorse because of the power. They bought a project car, at factory prices. I imagine the supra will be similar, because their friends with f-types, or the poor people with Mustangs will be faster.
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  26. ...can't you just take his numbers and the cost of electricity? Multiplied by the distance?
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  27.  @Aurora_v_cali  Nissan wasn't perfect before, but yes the shift in priorities and strategy had the most significant impact (including part sharing between the two).
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  28. Good luck on your exams!
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  29. It only helps with going up hill, acceleration, and getting un-stuck. The same way TCS does't help braking, that's ABS... and that is supposedly less effective than properly braking without abs (in bad weather). STM may help with corners ...if it was designed for different conditions, otherwise it may just cause a traction loss. But some vehicles are just bad at ice or on road snow (like Jeeps, which surprised me... Particularly wranglers). It mostly comes down to suspension, weight distribution, and tires/chains/studs. I suppose, if you are downshifting having 4wd or awd would also help, in that it spreads the torque load.
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  30. I imagine the answer is "obviously yes", but noting that "just because a car has wider tires than a different car, doesn't mean that's the only determining factor" (especially of braking distance). If every car had the same tire design and compound, and if the braking test was performed with narrow and wide tires, the braking would be better with likely no exception.
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  31. You could get some more with a potato.
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  32. Please wash your undercarriage more.
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  33. That was true once, but a bunch of bus routes got cancelled where I live, now it's a flight or driving... and for the price of flights here you might as well hire a driver.
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  34. the pads that wear fastest should improve rotor life. But for my car, $15 per rotor at Rock Auto means new rotors every(or ever other) pad change.
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  35. Almost 28 and 42. I understand completely.
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  36. Would you mind increasing the video's output volume, and re-uploading?
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  37. *I would throw in an LSD when swapping the transmission.
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  38. ...How many cars does he have?
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  39. As long as you can put 3rd party softwar in instead, I think selling the ability to use equipment installed in every car is fine. ...But if you can't, it's absurd, obviously the money isn't needed to pay for the hardware, and copying software costs virtually nothing. If they want to sell the feature but will not allow the opportunity for 3rd parties to compete (maybe do it better for less) they should sell it all as a single option, or install it in every vehicle and allow mass production to lower the per/unit cost of goods sold (i.e. the R&D expenses).
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  40. It really blows.
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  41. At first glance I thought you were covering the history, this is much more interesting (and less well known).
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  42. I would like to see this, he has better controls.
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  43. The AWD system sounds like it would have a much better driving experience, sliding seems very natural and predictable compared to some other approaches.
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  44. sassy muons?
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  45. lol that's not even good for performance.
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  46. Yes the fuel consumption will be lower at a given moment accelerating in a higher gear. However, over the period of acceleration is it actually more efficient than using each gear to the fullest in the shortest time? (Is net fuel consumption during acceleration lower in a high gear or a low gear, and at what point does it change?)
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  47. technically it jerked it lol
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  48. So you're saying... people like jerking, because it's exciting?
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  49. I realize this isn't really related, but I can either raise my redline by 1000 rpm or increase my compression ratio by 1. Yes they stress different components in different ways (both would also affect piston speeds but to a different extent), and obviously require different tunes, but what would be the relative effect of each? My guess is that the compression ratio would improve torque and power more broadly where as the rpm limit would merely allow more power at the end of the rev range. ...Though I suppose I would have to try them both to find the exact power and torque figures in this specific application.
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  50. i love me some hot air intakes, best way to maximize the decrease in air density. The effect of a heat shield should be easiest to test, just tape in some cardboard behind the intake as a temporary air box/wall. Testing a relocation would cost more, but I am interested in seeing how both affect the IAT, so if you're willing to try. I will certainly watch.
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  51. hmmm that 5 star scale is deceptive because it is non-linear. *...And each category has a different meaning. Thanks!
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  52. The same power figure as 20 years ago, but at higher relative cost. Does, it have two doors? Check. Is it RWD? Check. Is it a straight-6? Check. Is it turbocharged? Check. Is the HP 320? Check. Is it Red? Check. Then it's a supra...
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  53. I was considering buying one, because it seems awesome, then remembered <1990's vehicles...
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  54. in terms of pedal operation strategy, Porsche's is better. It gives the driver total choice in the vehicles operation. (single pedal operation limits your ability to control the vehicle fully, as do most electronic assists) Battery strategy, it does not give full choice but... At worst effectively you end up in a better place after a period of time; at best you are operating your tesla in the same way anyway. Now vehicle weight and efficiency is something they need to work on but, when driving the car, I would rather have the porsche.
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  55. Nah, just get the right turbo.... or twin-charged.
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  56. ...yep
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  57. I was hoping the circle was indicating the space over which the same amount of traction is obtained (that you might know how far is a reasonable margin of error to avoid overcorrection), or how much snow builds up as your car slides and when is the best moment to recover as a result... or something bizarre but informative. oh well... I guess a comparison of friction on lower friction surfaces is helpful to someone who has little experience with weather.
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  58. Sweet, makes sense.
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  59.  @jacobjeckles1283  from what I have heard, that is the case.
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  60. BMW's engines are usually decent (electronics...). Toyota has lost a lot of reliability since the new millenium, oil consumption being one of the more mild annoyances.
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  61. Do you have any formulas for determining ideal exhaust diameter to velocity? Perhaps a self-calculating excel sheet. That will populate a graph.
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  62.  @TheV8Pumpkin  no It's really not
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  63. I was told that on dry roads (not frosted or icy) winter tires are always worse, nice to see your testing had the same results. That said, I think you should have used all-seasons as the test.
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  64. I would say that the "benefits" of a flat engine are not significant enough to justify the downsides.
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  65. I find this list insufficient, I could not feel comfortable sending someone off to buy a car with just this.
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  66. RX-3 next
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  67. You missed excessive brake wear and transmission wear because they don't generally go back in gear smoothly.
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  68. No problem, sorry that wasn't a specific answer (as I am not certain which wear fastest, google will know). I don't go more than twice without a replacement or resurface, but that's because I don't have a caliper or micrometer to measure the wear. (Every car has an OEM recommendation for maximum wear).
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  69. Excellent captions.
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  70. Engineering Explained So If I recall correctly, combining this technique with ITBs would counteract their downside (of having benefits only for a limited rpm range)?
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  71. ....
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  72. Couldn't you use the hand brake like a steep hill start? or is that even harder on the car?
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  73. I would like to see the stats on caliper location for front vs rear vs awd performance cars.
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  74. different molecular structures of carbon? or perhaps the pad to rotor combination?
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  75. That makes more sense
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  76. So Toyota lightly hamstrung the BRZ version.
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  77. I thought about buying one that year, and enjoyed the test-drive, but where I live VW dealerships mark up all of their vehicles well above msrp, so >$31,000 for a beetle was a bit absurd when I could get a v6 mustang for as little as $23,999, a Genesis coupe for $28,000, or a 370z for around the same as the beetle.
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  78. I was just thinking about dirt and rust (in terms of longevity).
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  79. Interesting
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  80. Testing tires sounds awesome.
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  81. I have only needed the ebrake one time. In San Francisco, where my girlfriend's little accent had insufficient power and would stall immediately even with full throttle so the e-brake let me build some power without negative momentum.
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  82. Mostly that last part. Cars that warm up slower need that extra time in extreme cold because you will end up running it at high rpms at some point before it reaches operating temperature... unless you live somewhere flat... with low speed limits, and you have a car with close gear ratios and a lot of low-end torque.
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  83. I live at the bottom of a large and steep hill with a decently high speed limit. When it's -20C or colder most cars I have had take close to 10 min to warm (vs the 15 at idle). Then there's the fact that other parts a of your car start freezing up below -25c so it is also safer to let it warm.
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  84. That would depend on the duration, track, your speed, the weight of the car, the size of the rotors/pads, and of course your abilities/braking habits.
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  85. Yeah sorry, I personally couldn't tell you without at knowing more. But my best suggestion is to measure (or find the specs) a set of new brakes, Then run them twice and measure what you have left (then do the math).
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  86. But full flushes, most auto shops don't bleed the brakes and only replace what's in the reservoir.
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  87. RC-F or LC? Same platform, same engine, different prices, different styling.
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  88. So the most efficient would be a hcci opposed piston engine?
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  89. But how is hp affected? By the 4%?
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  90. Bolt on exhausts, so much easier. No cutting, no welding, no clamps. The new exhaust sounds pretty good.
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  91. I don't think filters can last 20,000km. The filter media seems to degrade fairly rapidly.
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  92. I don't know about ultra premium, but I have had bad luck with Penzoil. Quaker State and Castrol seem to function better over the life of the oil. Speaking of, could you do a test for the various oil brands?
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  93. Yeah, oil and air cooled engines like that would heat the external air more, when oil is present (as you mentioned). The oil isn't there to cool the block, but to cool and lubricate the internals... which would eventually expand till seizing. That said, the engines are built (in general) more rugged than the typical car engine to handle little maintenance, running with low oil, and being left out in the elements.
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  94. I was disappointed with the original. I will have to try the new one if it's decent.
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  95. Completely agree about the ideal gear ratios.
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  96. They say satelites are better, but shouldn't a well calibrated G-meter on a timer be more accurate than data being sent many Kms to some old satelites (doing many things at once) and back?
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  97. You should clarify the "I don't recommend a warm up" since it very obviously (though perhaps to the casual owner) does need to at sub zero temperatures.
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  98. Exactly
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  99. Too bad dyno testing is so expensive, the power and torque gains would be nice to know.... nvm you commented on that at the end.
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  100. Indeed, because math.
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  101. One should always judge an engine's performance by it's efficiency. Power or torque per quantity of fuel burned. Overall quality would have to be some sort of rating system for the above, as well as, weight, and reliability. Though, weighting the significance of each category would be difficult and have to be subjective to an extent.
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  102. Conceptually they are cool. But I am not too fond of diesels in practice due to poor emissions regulations (mainly on larger vehicles). Though electric motors on the other hand...
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  103. Good the math lines up with my observations.
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  104. The obligatory 80's corollas.
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  105. the tho is why they are obligatory.
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  106. Are there any other mods you are doing to your car? Perhaps forced induction, further weight reduction, fuel pump, injectors, etc.? Also, did the tower braces end up making any real difference?
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  107. 20kph is not nothing. I should buy some solar panels.
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  108. ...Thank you for explaining magnetism, and deceleration. lol
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  109. but how does the filter hold up after repeat use?
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  110. I imagine it's like the tiny Zeod engine. High hp, low torque. Still awesome for the size/weight/displacement, but not the end of the story.
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  111. And the pro driver even had a clear track.
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  112. if this is a serious question, then: Taking what's left behind. Ex: a coyote eating the scraps left by a larger animal.
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  113. It's only boring if you make it that way. A toyota corolla is horribly borring, but a lamborghini is the opposite. Why would you expect an electric Nissan to be less boring than a BMW?
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  114. I want to see video of different braking techniques on ice now. Aren't you curious what the difference in stopping distance between slamming on the brakes, pulsing the brakes, and gradually increasing braking pressure?
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  115. But in application, you can typically increase a vehicle's stroke more than its bore.
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  116. But no more than any other Z4
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  117. Valtra103 There are ten year old vehicles using stop-start. Why not just look it up? Then you'd know... though either way, the result is not necessarily the case for all of them. But if the batteries have lasted you at least know it is possible.
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  118. ​ @Plur307  generally speaking If you don't know what it is, it's best not to start throwing out difinitive diagnosis immediately. Identify where the sound is coming from, what type of sound it is, and when it occurs or what causes a change. Then you know where to look. It would be embarassing if you convinced someone to get a new cylinder head and it was caused by something loose and shaking. It is definitely annoying when you have someone get angry over the fact that there might be something wrong with their new thing. They tend to people take it personally by assuming that you are trying to tear them down, not just caution them. Of course, someone who is prejudiced and making complaint after complaint, (regardless of how small, or insignificant) is also very annoying. Regardless, if you get a new car, and it starts making strange sounds, or acting strangely, take it in right away.
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  119.  @arrowmouse  Well it sounds like it at least has more value than a smart car. Those were small as well but unreliable and worse on gas than a cheaper, larger, more powerful, and better handling car. So you weren't really gaining anything except expenses and nuisance. This though, maximum efficiency.
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  120.  @macnlz  like detroit electric. They had nice looking concept passenger cars, then they fizzled out, then they made a car that was basically the old tesla Roadster... and where are they now?? Zenn almost 2 decades ago... People want electric cars and have for a long time, even with range constraints, but there are huge barriers to entry in the auto manufacturing market. It's really too bad they don't do more to help new entrants, meanwhile they repeatedly bail out large companies (some of whom can't manage their business *cough Chrysler *cough*).
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  121. yeah I was just thinking, "isn't this kind of backwards? you're trying to creating vacuum under the car"
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  122. Those new Formula-E cars look awesome! (and futuristic).
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  123. ...So a vortex generator (like a trip) on the underside, before the curve, would negate the effects of a diffuser?
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  124.  @OldSchoolZ-wy2yx  that would be jockeying. Jocking would be... wearing restrictive underwear? or behaving typical of the highschool 'jock'?
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  125. SPEEED
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  126. I am sad there is no manual. But when they phase out the 350 I suspect we will end up with a far superior GT 500.
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  127. In the interest of range, wouldn't it be better to have a clutch that disengages whenever you aren't accelerating? (Also, to use more regenerative braking when quick decel is needed.... on models where regen is at the hub)
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  128. Tow vs pull is very different
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  129. So backfiring used to only refer to the banging from explosions occuring in the exhaust... occasionally with actual fire. That goes all the way back to the dawn of cars. You would see it a lot with antiques puttering along and then BANG. But now we apply it to the crackle also. Is it the same thing to different extents? Should we have different terms? Someone says "backfire", and you think junk car, engine problems. But if you say exhaust crackle you think of that lovely sound after letting off the throttle.
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  130. once most high performance cars get down to <2 seconds I am going to stop caring. The difference will be observably negligible.
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  131. Wow 181... and everyone talked to me like I was ridiculous for pointing out the hp was lower than it should be compared to other modern engines (of similar displacement), even other Mazdas. Especially considering it was runs on premium.
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  132. lol
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  133. Yes let's all re-learn how engine works to come to a logical conclusion. Turbo chargers are different sizes, internals can be different, intercoolers, manifolds, fuel type (and therefore timing advance)... water injection, etc.
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  134. 10:59 for cybertruck
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  135. It would be to see the numbers. I would never drive without one, but it obviously makes a huge difference. I had my filter box out while painting and the A:F ratio went from fine to too lean. (Note: my car is old and does not adjust like a modern one would. If the MAF is all the way open but with extra air, that extra air is unmeasured).
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  136. These would be perfect for my father (2 hip replacements, I guess he would recommend it haha). Having forced stops would probably allow him to drive further in a day and my mother wouldn't have to feel bad asking for pee breaks every couple hours.
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  137. Compared to previous generation Z06s it's not offering a whole lot more engine. But, it looks significantly better, and the rear suspension has been brought to this century. So it is a bit expensive (~$30k), but I don't think it's unrealistically expensive. It is a performance bargain... but still of bargain manufacturing quality.
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  138. *oh, if the Z06 starts at $80,000 then that's exactly what I would expect.
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  139. I was just about to make this comment.
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  140. Can I ask how much a sponsorship is for a 4 minute video (with say... your average viewership)?
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  141. Jason Waifu reveal!!! 4:13 :D lol
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  142. Basically it boils down to the fact that the energy consumption of the Model 3 is so much lower than the Raptor that it is still a net reduction, after all of the system losses.
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  143. Chitty chitty bang bang life.
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  144. but, if gasoline prices go back up it would still be more.
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  145. Your certainty was obviously not based off of a lot of specific and applied knowledge. Perhaps this is an opportunity to be more cognisant of such things in the future. That said, skepticism is good.
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  146. Yes but then other considerations also come into play.
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  147. Did anyone here not know that low friction wheels make large masses easy to move?
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  148. I like blue, but this shade is pretty gaudy.
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  149. Do an unusual engine?
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  150. As I said. I want all the manufacturers to pool their resources to design a final farewell (or a few, because variation in approaches would be pursued in the process) to the combustion engine, by making the most efficient engine possible combining the most efficient designs (HCCI, opposed pistons, electric turbochargers, etc.). There are diminishing returns when combining these, but I still want to see it... or them, because again, likely a few different approaches will likely yield the same result.
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  151.  @davidarnovitz628  It's important for manufacturers to have an out for liability reasons.
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  152. I thought warranties usually cover that?
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  153. I don't like overrides, as there are several regular instances where they would consistently cause rather than solve problems. Neither solution is perfect, but in every other circumstances we acknowledge a system that endangers you as a flaw. Where as here we like to say, it's just a cost of an extra safety feature. But that doesn't necessarily make it extra safe in sum. How about those neck belts...
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  154. But if we don't even know which are ceramic or semi-metallic, what is the point?
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  155. Sounds so good
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  156. Honda really impressed me about half a decade ago with the turn signal activated blind spot cameras. It wasn't ground breaking or particularly difficult to program. But it is a good feature.
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  157. I swear you mention energy density every time. lol
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  158. Expect the prices to spike next year, or massive dealership mark-up.
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  159. isn't the pictured block Aluminum?
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  160. That makes sense. An engine can be 'too lean' or ...'leaner' but it is incorrect to say the engine 'is lean'. Much like, an engine running slightly bellow operating temperature might described as 'cold' but it is still going to burn your hands ...because it isn't endothermic. You contextually saying an engine is 'running' cold or lean is correct relative to it's normal operating state. However, it is definitely going to cause confusion for someone unfamiliar.
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  161. So the GT500 is faster?
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  162.  @nighthawk0077  This isn't like running your car on Yorkshire Tea Gold mate. It doesn't improve power, it just robs less. (Which I know you know, I did get a chuckle)
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  163. So the higher redline engine has no balance shafts. Not technically a high reving engine, but still...
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  164. That's not even a bad price compared to most of them
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  165. Super Knock sounds like something you'd hear on an infomercial.
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  166. Is that a thing? How did I miss either of those absurdities?
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  167. Is the answer "yes but why?"
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  168. Isn't every year the fastest year? Don't get me wrong, that's how I think it should be.
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  169. don't the ecoboost and skyactive turbos have high compression?
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  170. The closed deck was likely done in consideration of that. But for that price it should already have like 500-600hp. Toyota's recent trend toward 'needs modification on purchase vehicles' is disappointing.
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  171. coool
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  172. They are wayyy overcharging for electricity at charging stations. Utilities companies should own some to cut down on the expense while still having a decent profit margin.
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  173. ...see what I did there?
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  174. Could mismatched piston/bore/stroke sizes help balance a V5 (or any engine)?
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  175. Good more swaps for my Datsun.
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  176. I see I have already asked the question I was going to again ask.
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  177. Have you been repeating yourself to pick the preferred in editing, then missing cutting them? Just curious not complaining, I know editing is a huge pain.
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  178. wait, before I watch, does it improve CD or downforce?
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  179. How you hit the pothole, the speed you hit the pothole, and defects in the alloy also have a influence. *Also, Jason, clearly this means you are too fat.
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  180. Was it RWD?
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  181. I have seen this multiple times but my like disappeared.
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  182. ...You can't say the 'K' word?
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  183. Heated seats can kiss my @$$ heated steering wheels are much more helpful when it is -40C
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  184. Nissan's is better.
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  185. 'Freedom' units? Freedom to use a cumbersome system of measurement despite there being no good reason to considering even engineers have been using the metric system for decades.
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  186. That vent is wicked.
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  187. Well sometimes stock is so bad anything is an upgrade.
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  188. Well for one, speed < accel unless you go to a racetrack often. 2. hp is more important relative to weight and aerodynamics 3.... powerband shape? 4....... power at the crank vs at the wheels? 5....................................................................... uh.... can your car's tires put the power down??? I don't know Now we shall see if I got any right. *Well, after seeing the car, I am guessing he meant more driving enjoyment. Handling is definitely key to an enjoyable car, and often takes a backseat to the output figures. So that has to go on there. Based on where I think he's going with this... Lets swap out , #5 1:25 #3 is confirmed 3:35 #1 is mentioned... but so is the original #5 8:20 #2 10:37 The revised number 5 was referenced. It looks like I should have swapped #4 after all. Altough, realistically every point I mentioned is mentioned in the video, and then some. He gives more than 5 points but organizes them into a few broader rationales. Good video.
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  189. I thought you wanted to keep the exhaust hot for velocity, and the catalytic converter hot... for catalyzing?
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  190. My guess is that wet conditions have an equalizing effect, because of the hinderance, but in dry conditions the tires with a small advantage would see a more significant one. Although, perhaps compound is more relevant in dry conditions, but tread pattern is more important in wet, so they may not follow their current trends at all.
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  191. Could you just route the catch can back to the oil sump? That seems better.
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  192. Now, I know I have asked this before but... what about the product lifecycle footprint of the other maintenance items a combustion engine has, in addition to those an electric vehicle has? ex: Emissions per L of regular gasoline produced. Emissions per L of Oils (transmission, engine) produced. Emissions per L of Oils (trans, engine) disposed.
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  193. Welcome to a heightened awareness of the universe.
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  194.  @Syzygizing  Then your 16 year old ass is wrong. To disprove your hypothesis you merely need one exception (as you stated it as an absolute).
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  195.  @connoratchley2438  While fundamentally that is true, you are also the only one who brought intelligence into it.
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  196. Kind of like a more bulky version of Nissan's. Definitely a better design than the original Atkinson.
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  197. Lol, I litterally just drew this exhaust valve design several months ago. (Not that my idea is novel, just the timing of it's application is funny)
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  198. Well, that's a huge disappointment.
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  199. Is BMEP better than torque/fuel consumption (or hp/fc)? (as a measure of efficiency)
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  200.  @EngineeringExplained  all of these acronyms!
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  201. Could any other outcome have been possible?
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  202. It's a cool design.
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  203. I know this was sort of a side point, but the effect on the oil life is what I was most curious about. ...I wonder if wrapping the intake side with coolant lines (from a second radiator) would have a more (or less) significant amount of cooling for the engine intake temperature, compared to an intercooler. (I have doubts because the turbine itself would likely be unaffected and retain just as much heat).
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  204. cool
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  205. Whytape over a ford logo? We all know it's a ford logo.
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  206. Wouldn't closing the valve early create vacuum pressure within the cylinder, where any saved effort in the compression stroke would be cancelled out during the intake stroke? (...unless it has forced induction) Although, you would still have less air, and so, could use less fuel. Still the atkinson cycle seems better. As an aside, I thought atkinson cycle engines have a strange crank mechanism.
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  207. Smart deficiencies vs Mazda -reliability -grip -propensity to roll (sideways) -appearance -performance -weight distribution -suspension
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  208. Cappuccino instead?
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  209.  @w8stral  base 6 is where it's at
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  210. I don't know what it's like where you live, but where I live All-seasons are typically and hardly anyone has summer tires.
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  211. That corporate average is insanely misleading (as a general measure of technology). Look at their engine capacities and layouts. There are no Mazda v8s, they had few v6s before that and none since 2013. Then factor in the number of different engines they actually produce (it's 2, 3 if you include the one turbo option) makes it easier to stay low compared to competitors. Lets say Nissan, their engines have worse fuel economy accross the board, but they still make a variety of engines for a variety of functions, having that wide product offering inherently raises their average fuel economy even if their fuel economy were the best in each segment.
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  212.  @thicknick734  it's mostly the electrics you should be concerned over... and replacing with OEM is just going to lead to the same problems.
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  213. I feel like I read this study
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  214. We should fit it to every engine.
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  215. I will say it again, I don't want one pedal regen... ever.
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  216. Based on looks, I would go for the BMW. I like that it slides like it's warm butter on a plate.
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  217. Did you mean kW at 1:15? because those arrows do not line up with any stated figures
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