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Old 06-15-2016, 02:59 AM   #4209
Locust
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Join Date: Oct 2014
Drives: 2015 Scion FR-S, 2012 OB Evo X MR
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Quote:
Originally Posted by strat61caster View Post
I'd say both those numbers are spot on for the Bridgestones I've been running (and coincidentally my old ZIISS), although not directly comparable as they're not 215/45/17. I set them ~30 psi in the morning and they end up around 34 hot, bleed off as necessary to keep the tire from ballooning depending on what tire gets worked the hardest.

A pyrometer has been well worth the money to take the guesswork out of tire pressures.
Ya I used a pyrometer to get to 29/27. Checked for tire temps on all 4 corners for 6 events to confirm.
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2015 FR-S (STX) and 2012 Evo X MR

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