Originally Posted by 4sevens.com
I agree with this statement, however I have to say I turned better times at road atlanta on the same day switching from 18's to 19's in back to back sessions.
apex arc-8 18x10's with
stock zcp suspension (full stiff)
-1.9 front camber
-1.5 rear camber
Even though that may be true, it may have nothing to do with wheel size and more to do about wheel weight and tire width.