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Old 09-11-2007, 07:22 AM   #10
Track rat
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Join Date: Nov 2006
Location: Cucamonga CA
Posts: 3,662
I have been running 35/35 cold for a while now and tire wear is very even across the tread. I do notice a little more (detail) up front on rough roads. These pressures have helped to preserve the outer shoulders on track days also.

Track hounds will tell you that maximum dry traction is achieved at the lowest pressure you can run without the sidewall beginning to roll over. This pressure varies greatly between drivers. Super smooth, very experienced drivers can run lower pressures than a guy who really tosses and slides his car around. A novice who does a lot of sliding can destroy a set of tires in one day with too low pressure.
2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor

Last edited by Topless; 09-11-2007 at 08:12 AM.
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