Originally Posted by Croustibat

Dude, i dont care about "serious race team" and whatsnots. I am not into serious race driving, i am not a pro driver either, and if you are driving an S chassis, you are not either.

Fact n°1:
I already computed the inertia impact on accel /decel time in a previous post, and it is ridiculous with the engines we use. No human being would sense a 30µs change. The only way to feel it is to drive a low torque / low power car, with a huuuuge change in weight. This may have applied 40 years ago. Not now.

Now this is not the only effect in action and the gyroscopic effect could have an impact on the front wheels, but then again i have power steering on my car so i totally dont care.

Fact n°2:
I went from 215 width tyres, 40lbs wheel+ tyre combo to 235 width, 24lbs wheel + tyre combo.

No real differences, except i now lock and spin the wheels easier. tyres are better too, and i dont have a stupid alignment that makes only half of the tyre touch the road. Fact is, i could bury the gas pedal without worrying too much before. Now, even with a torsen, i cant. It may be a bit better, but it is also a lot more difficult. Maybe a pro driver can cope with that easily, but what i say is most people dont or dont want to. I have no race to win, i drive to have fun, and while i like shaving seconds off my times, i have no need for that. If going always faster means ruining my fun, then i dont try to go faster. Which is exactly why i dont want to be a pro driver.

So yes, based on MY experience, there is no SENSIBLE gain for most people (maybe if i put it in caps and bold you will be able to see it this time ? ). People who really can gain about that usually dont post on forums.