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Old 07-12-2012, 08:25 PM   #10

Silverguardrail's Avatar
Drives: 2012 ZL1 #1448
Join Date: May 2009
Location: WNY
Posts: 890
Originally Posted by Lonny Doyle View Post
Everyday driving I run 32

At the strip I have tried 32 and then 27, 27 hooked up better.

First time at the autocross I tried 40 and it was too much, it would not hook up.

The second time at the autocross I set it at 30 and it was a lot better.

There are triangles near the edge of the tire that are wear references. Under heavy side loads the tire will roll under, you will see scuffing start to approach the triangles, if the scuffing starts to wear away the triangles you need to add more pressure.
I just read an article online about tire pressure, the important part is near the bottom, talks about the triangles on the sidewall.
2012 ZL1 SIM, MN6, B92, RTQ

ZL1 - the true definition of joy ride
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