Originally posted by Loren
The question was "what is the best tire size for a 6.5" wheel", not what's the widest autocross tire you can stuff on a 6.5" wheel if you have no other choice.
Stock class Miatas run 225's on 6" wheels. But if they had the freedom to change wheels, they'd probably be running 225's on a 7.5 or 8" wheel... maybe even 235-245's on a wider wheel. Stock class = sometimes doing weird shit to work around the things you aren't permitted to change.
I'm sorry Loren, when he asked for the best autocross tire size, I thought he was asking which would make him faster....and 225s will make him a hellava lot faster than 195s. That's proven, over and over. The disadvantage of using a wheel that's a tad too narrow is FAR overthrown by being able to stick on a MUCH wider tire. And on a camber challanged car like the Corrolla, it'll give him a better wear pattern and his tires will longer. That's from PERSONAL expirience co-drving Jason Minehart's H-stock Protege.