The Official 370Z Autocross Thread

[TheNose]

Originally Posted by ChrisSlicks

I'm sure I could make 315's work but they wouldn't be on the stock 9" rim unfortunately. 315 on a 10" works.

The only reason I'm tempted to try on the 9" wheel is that I've seen C6 Vette guys running 315/30/18 on an 18x8.5" wheel. They said it gripped as well as the 295 but had much better wear characteristics. The Hoosier spec sheet even says they're the same diameter as the 295/30. With a stock legal 5mm spacer, I think there's a good chance they'll clear on the inside.

Originally Posted by pgrmstr

well then, since we were the guinea pigs for the shocks, i think its only fair for you to be the guinea pig for trying to get 315's working on the front

Fair?!?! Who said anything about fair? When I try it in the spring, you'll be the first to see how it works. It'll probably be with 315s in front and 295s in rear for the first event