Quote:
Originally Posted by DAEMANO
Radial, lateral and tangential deformation due to lack of (dynamic) stiffness affect the performance of tires and weight of the wheels and thus the car. Put plainly, if the wheel shape changes under load, so does the shape of the tire (contact patch, sidewall, etc). That's the point. Not saying that's not getting through to you, but for anyone else, please note. 
Thanks for the P.S.A. anyhow. |
Yep, valid points, but without numbers behind them you cannot predict how much of an effect will occur.
You fail to consider that the aluminum of the wheels is literally ten thousand times stiffer than tire rubber (Young's Modulus of ~7*10^10 vs ~7*10^6). That means that, roughly, if the tire deflects 1" (pretty extreme, but for the sake of argument), the wheel will deflect 1/1000th of an inch. The wheels aren't even cast to that tolerance, not even close! Most OEM wheels are held to a ~3mm tolerance (118/1000ths of an inch).
Stiffening the stock wheels to improve the handling of a car is a fool's errand.
Considering that the old wheel style performs more than adequately, any stiffness gained in the new wheels will have a virtually immeasurable effect on the car's handling. It's neat to put in the brochure though.
-Josh