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Old 04-21-2017, 01:04 PM   #9
Locust
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Join Date: Oct 2014
Drives: 2015 Scion FR-S, 2012 OB Evo X MR
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Most people in autocross have found 29psi front and slightly less rear to be ideal. For track you have to take into account that your pressures will rise while you're out there and you won't have a chance to just pull over and fix them. If you want your pressures to be ideal for most of your session you should start a little low (27 front / 24 rear would work) and then get some heat into them as you go. You'd likely end up running around 32f/29r by the mid point of your session.
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2015 FR-S (STX) and 2012 Evo X MR

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