A 350Z Procharger challenges a Porsche 991 GT3 ... and then has been added as a related post - related requested by Zawash on that post.

I think that at best this would be applicable only to the very lightest of electric vehicles (something in the "motorcycle" weight class, even half a ton is probably too heavy), and I have my doubts about even those, even when completely disregarding the sideways forces.

With a system like this you do not want more than a few cm (about an inch, at a guess) of suspension travel from when the car is lifted in air to the car at rest (= 1G vertical load), just from the weight of the car compressing the springs. If you have more the springs (which the loops naturally are) have to compress a lot with each revolution, which strains them, heats them, isn't good for rolling resistance, etc.

If we assume a 1000 kg car with a 50/50 weight distribution, to get about 2 cm of suspension travel the spring stiffness would be about comparable to a high level GT racing car. Comparing to high level sports cars, the street going Porsche 911 GT3 RS car, which is regarded as a pretty stiff, racy and track oriented vehicle has something in the region of three times that much travel, a normal commuter car can have way over 10 cm due to soft, comfort oriented springs.

So you can't spring a proper car with just these because it'd require it to be too stiff (also I can foresee shock absorption issues). Another problem is the 360 degree springy nature of it. You really don't want car tyres to move much aside from up and down. These have the problem that when you brake, the forces will try to push the axle forwards in relation to the wheel (i.e. the wheel moves backwards while braking), and the reverse when accelerating. You'd be (possibly) drastically changing the wheelbase of the car during acceleration and braking, which could have catastrophic results for handling in extreme situations. Many if not most cars these days are capable of braking at over 1 G, as long as they have decent tyres, so the front-back movement could be bigger than the up-down movement.

So yeah, doesn't really sound like a workable solution as the ONLY spring system on a car. Having some springiness in the tyres (either in the wheel itself of just having larger profile tyres, like we used to back in the day) can be helpful for comfort and even handling in some cases, but springing the car only via the wheels isn't a good idea, you really want to be able to control the wheels better than that.

The thumbnail image for this video has been updated - thumbnail added by radx.

>> ^mentality:

>> ^westy:
Its simular how to how the top sim racers could probably beat allot of the profesoinal drivers out there.
Racing sims help you to get to know the track and your lines, but this is complete BS. Have you ever been in a race car? It's a completely different experience than a racing sim.
The only "gamer" to turn pro was Lucas Ordoñez. He was already an amateur racer, and it still took ~1 year of training. If you think you can take the best sim racer with no actual track experience, dump him in a real car for a month or two and expect them to do well, you are ridiculous.


I haven't driven a Race car , but I know people that do sim racing who have jumped into cars and beaten people by over 1/2 second on a national level .

I would not describe sim racers as "gamers" there are at least 20 sim racers that would probably beat 70% of drivers out racing today , if they were given 6 months. ITS PURELY DOWN TO COST.

GT3 although probably the best console bassed "sims" , is pretty shit when compared to the top pc simulators intemrs of getting feal , But the fact is anything below GP2 , star Mazda , is so fucking slow and non reactive a talented sim racer would have absaluty no issues racing to a high level.

obvously u have allot of shit sim racers , but there are allot of people that are better than the majority of real world race drivers excluded purely by cost. ( I follow all the driving schooler ship programs and events allwing sim racers or noobs to get into a real race car , and so far nearly all of them are a scam to ethor milk money out of people or purely a promotoinal tool for a game developer and dont actualy lead to annything of anny sugnificance