amc wrote: Let's say we want the cars to be the same speed as F1, and that (to a large extent) means having the same power output.
Does it? Kill minimum weight and allow closed wheels and large undertrays; the Delta wing was built on this sort of idea, and it runs midpack LMP2 times for roughly half the energy. not bad for a first iteration design. Plus, if you allow 4 wheel drive, you can recover staggering amounts of energy under braking.
amc wrote:There is no way an electric car will ever be as fast as a petrol one, that is, until someone fits a hydrogen cell.
At FSAE Michigan this year, 2 electric teams were invited to demo their electric cars, in preparation for the category coming to the event next year. Their AutoX run is the first video I posted above. Their time destroyed almost all the combustion car's times, despite running when the track was least optimal (they were the first to run). It is true that this car was built by one of the top teams but in only the third year of the electric category, they barely weigh more than their combustion counterparts and benefit from better packaging and ridiculous torque. In FSAE, 3.9 seconds is incredibly fast for accel (a 75m straight run from standing start). Delft's electric car ran a 3.44 this year.
All of those cars are battery powered, and can race for a good 30-45 minutes with the batteries that they have. according to this
, thats longer than what the FIA's series is planned to be capable of.
Think this way; what weighs more, 4 motors and their batteries, or one engine, + fuel system + intake system + exhaust system + gearbox + clutch? If your demand for energy volume is low (and it can be surprisingly low if you can harvest energy from all 4 wheels under braking) the gap will not be large. How do you think TU delft gets their electric car down to 145 kg? only one car at the german competition (out of 109) weighed less, and only by 4 kg.
amc wrote:At the moment those Formula E cars look very limited on downforce levels
I don't see any reason why that should be true. AFAIK those details of the regulations are yet to be revealed.
amc wrote:The idea of a 'green' series is nonsense - there is no eco-friendly way to cart a racing series around the world - but we do need transferrable electrical vehicle technology. Battery powered aircraft? I don't think so. I think if F1 fans in 40-50 years still have a fast, exciting racing series to watch they will forgive a hum or two instead of a V8 roar. Things will adapt eventually.
At least I can agree with you on that
I'm not endorsing this series; not enough is known about it yet. I just don't see electric cars as boring, silent, slow, heavy and I think there's no good reason why others should think of them that way.