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geemy
Engineering Explained
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Comments by "geemy" (@geemy9675) on "3 Big Problems With Direct Injection Engines (Gasoline)" video.
@metimeti1998 just rented a Hyundai venue with a cvt was honestly not that bad for a 120hp compact crossover with very little torque. it was not fast but it felt more responsive than an automatic slushbox with same power. it even took me a while to realize it was a Cvt because it had a manual mode and the fact that I was focused on dodging the huge potholes and puddles. even the manual mode was quicker than on an automatic and a nice addition for twisty and steep roads. just enough ground clearance to clear the very rough dirt roads without worrying too much, and easy to place thanks to the narrow and short wheelbase. nothing fancy but does the job
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@robertmontgomery7158 there is not enough gas in the world to supply all ICE cars. and not enough air to dilute the CO2. recycling will become economically viable when there is a large pool of batteries that are 10-15 years old. batteries can be reconditioned, reuse the cells for energy storage that doesn't demand high energy density. or recycled especially if manufacturers start to take recycling into account in the design.
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@lonniebeal6032 corrupt is a very accurate definition for politicians acting in the sole interest of making CEOs friends richer. like every republican since Reagan
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@LouisDuran they are in every aspect and by every metric. batteries are the only bottleneck. the most advanced electric drivetrains are not far from even a top fuel drivetrain power to weight ratio, while being many orders of magnitude more reliable and dont need to waste all that energy to melt the clutch at 3700F at every launch to stay in it's operational rpm range. even a top fuel engine advantage over electric motors is mainly due to nitromethane energy density and the possibility to use all that wasted energy from the exhaust to generate thrust and increase traction and acceleration from a stop. comparing road engines that need to be able to run for hundred thousand miles is no match for electric motors. plus we are barely scratching the surface of what electric motors can achieve with Tesla plaid carbon sleeved rotors and their motors that don't lose power at high rpm.
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to be fair safety, efficiency, power, performance, and unfortunately weight have all increased a lot. weight increase is largely due to people buying SUV, crossover and trucks but not only price increased 2.5x slower than overall inflation since 1990. although last year has been crazy on used market and dealer markups. from my experience owning Toyota and Kia , never had any issues besides regular maintenance 90'sn were also not that great with electronic issues.
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@johnnyreb86 it's also much quicker, larger, comfortable and upscale. a new base 2000 civic would sell close to zero nowadays. of course a mint type R would sell way over MSRP because of its rarity. the problem is that the car market is drive by people who buy new and they buy SUVs,crossovers or trucks.
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@xjmg007 you can do good mpg at stabilized speed/low rpm. if you drive the same way with a downsized turbo you'll get good (even better) mileage too.
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@silimarina. yep the maverick does 40+ real life mpg city and highway. not stabilized 55mph which is like the engine idling in overdrive. seems like lot of people are biased and they always get 2x the original milage on a 40 yo car....ok downhill, downwind and at stabilized 30mph. I know you can get better mpg than EPA (I get up to 32mpg highway IN THE RIGHT CONDITIONS way over the advertised 25mpg on my Sorento V6. usually more around 30mpg at higher speeds like 85+, but that's with no strong wind, steady traffic, and no freezing temperatures
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@LouisDuran btw my EV's motor is 60lbs...
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