Comments by "David Elliott" (@davidelliott5843) on "Donut" channel.

  1. Less wind resistance of course.
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  2. Renault have a GTA built for them by Matra.
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  3. The sticking out cylinders on BMWs only affect the cornering lean angle on are tracks. They are no problem whatsoever on roads.
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  4. An electric cars contains about ten pounds (5kg) of lithium. A gasoline tank contains 80 pounds (40 kg) of extremely flammable gasoline in a bean can tank or more often plastic. Fire service is familiar with gasoline fires because they happen every day. Lithium battery fires need different methods but can be stopped.
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  5. Has anyone mentioned the Mitsubishi Starrion. It’s not a racist joke name for what was a pretty good car. Also the Mazda Bongo minivan.
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  6. Honda and Toyota are doing their best to ignore the EV market. They (and Toyota) are pushing hydrogen which is nothing more than greenwash. They have seemingly no interest in battery cars.
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  7. Electric cars can simplify braking by using a motor in each wheel. They will easily stop the car just like friction brakes but (1) no pads to wear out (2) much less unsprung weight (3) no additional parts to buy. For emergencies have the motors dump their braking power into big resistors.
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  8. It sounds like the Nicola gravity engine.
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  9. What about the Rotax E-Tech used in snowmobiles and outboards? It’s a two stroke but runs cleaner and gives more power per litre of fuel than competing four strokes. It’s just 800cc but makes 160bhp so a 1600 could make 320 bhp.
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  10. The Fiat 1.4 “100HP” has a huge manicat with cast 4~1 going for y into a huge catalyst chamber. I believe tubular headers with cat underneath would make more power. It would be interesting to see if it really could.
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  11. Bikes need lightweight fuel efficient engines (fuel is heavy). So why have we ignored the Rotax E-Tech two strokes. Serious power, low weight, low fuel consumption AND clean. These babies don’t smoke. Why can’t we have them in bikes?
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  12. In the 1980s, China ripped of Fiat with the (then new) Panda. But Fiat being cool did well out of it. More recently they tried again with a 169 Panda rip off. https://www.caradvice.com.au/14583/fiat-panda-chinese-copy-banned-from-europe/
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  13. Yamaha bike engines have the engine tilted with near vertical inlet tracts. VW could have done something similar solving the issue of odd length ports. That would have allowed separate cylinder heads. Costs would be similar because each one has half as many components.
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  14. To be honest I like the Tesla M3 in white. Usually I’d never touch the colour.
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  15. Get the car in white and have it wrapped. Car retains its resale value any the OEM paint is protected by the wrap. What’s not to like?
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  16. Check out Allen Millyards special engines. Viper V10 motorbike. Wright Cyclone V twin, Six cylinder Kawasaki (900 now 1300). Numerous extended two strokes. None of these would be even slightly interesting if they were electric powered.
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  17. Actually, it was two adverts. ;)
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  18. The Stratos replicas are easy to spot, because they really are better built than the originals. Top totty for not top money. And the Alfa V6 really is The dog's bits.
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  19. In 2001 I had an Audi A4 Avant (station wagon USA or estate car U.K.) it was a silver with a hint of pale blue and it look the bits. When I sold it the dealer said my subtle choice had added value. Far better than boring black and silver available at the time.
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  20. I had problem on my motorbike with buffeting behind the windscreen. The screen creates a dead area behind, wind coming off the sides buffets sideways as left and right fight for dominance. The solution was a two part screen. The main body is too low on its own but an adjustable top screen sits high enough to protect the rider's head. Air bleeding between the screens stops the sideways buffeting. F1 front spoilers do the same job in much more sophisticated ways.
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  21. The virtue signalling masks and awkward stools set metres apart are SO ANNOYING
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  22. You forgot to show the supersonic shock wave kicking up dust at right-angles to the car.
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  23. How many of those cars were stolen and the sale deal fell through? There should be some sort of VIN number register somewhere.
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  24. Cobalt is used to remove sulphur from diesel and gasoline in far larger amounts than batteries. It’s also being phased out. LFP don’t use any. LFP plus manganese (L3P) has similar performance to ternary cells. Both have an extremely low fire risk. Both are used by Tesla.
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  25. Li-ion batteries are a nickel-graphite cells which contain only around 1% lithium. They also have done cobalt but the petrochemical industry uses a lot of cobalt so that cancels out.
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  26. Car brakes are boosted by engine vacuum. Lose the engine and you need a leg like Arnie to stop the car. Citroen their mineral oil hydraulics powered the brakes steering and suspension with a tiny pump driven by the engine. A hydraulic accumulator gave enough reserve power to stop the car. As back-up the parking brake worked on the front axle.
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  27. Merc F1 engines are built by Ilmor. I believe Renault use Judd engines. The big issue is that FIA bolted down the Rhine rules do much that one is basically the same as another. Even worse their refusal to allow in-season upgrades has stifled attempts by slower teams to improve their product. That’s what killed the McClaren-Honda partnership.
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  28. Wind power has a considerable recycling problem. Carbon fibre is energy intensive and can’t be recycled. It also kills migrating birds. Solar power has a recycling problem. The cells use rare earth elements which cannot be recycled easily. Hydro power has caused huge problems ms around the world. Think Aral Sea Russia. Nile Africa Mekong River South Asia. Nuclear power is the cleanest and safest power source we have. But it upsets the Water melon greens because it’s nuclear. They complain about waste but in reality waste is not a problem. Even better we now have a Canadian nuke power project that will be fuelled with spent fuel. It solves the long term waste problem AND each kilogram makes 30x more energy than the original plant ever did.
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  29. Everyone is equal but some are more equal than others.
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  30. Check out the Rotax E-TECH - 800cc and 160 bhp. Skidoo snowmobiles use them with less weight and better fuel mileage than equivalent (1200cc) four stokes. Fuel is injected after the ports have closed so there is no smell. Rotax even have a turbo version for use at high altitudes. Exhaust has a variable height valve to give a wider power range. Inlet has reed valves to prevent blow back. Fuel is not run through the crank case so less oil is needed to keep the bottom end happy. Its also possible (with a small blower) to have a wet sump where air and fuel never goes into the crank case. This works well with V and Cross format engines.
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  31. Properly used CanBus needs one power wire to each location. Everything else is data over power to switch whatever needs to be switched. It’s not properly happening in cars because the industry never makes rapid changes.
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  32. To Chinese manufacturer - Do you work to CE specifications? Oh yeah we do CE ! We have big sticker. We have small sticker. Where you wan sticker?
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  33. Ilmor (sorry) Mercedes have been the top F1 engine maker since the 1980s. Honda seem to be getting close but they are about to pull out. Perhaps Dodge should buy the Honda engine team.
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  34. You forgot the Deltic and the Liquid Piston is also ignored.
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  35. The original W12 aero engines failed because vibration harmonics between the two cranks caused cranks and rods to fail. Daimler Benz spent years on a similar idea to merge a pair of DB605 - It failed. Rolls Royce tried it with the Vulture (two Merlins) it was rubbish. But RR always struggled with oil supply. Their development test beds used V twins with a standard oil pump they were unburstable. Stack six together in a Merlin and that oil supply became marginal. At high revs the big ends centrifuged oil out of the bearings. It took years for anyone to realise why.
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  36. Bikers tend to be better at staying on the gas (or the brakes) because faffing about really unsettles the machine. We also have to understand how counter-steering works which cars don’t worry about.
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  37. All this whizz-bang but the thing costs 20x as much as a normally made car. Hey this just might be why traditional car plants are so huge.
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