Thread: Track Prep
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      06-21-2012, 02:53 AM   #7
sin911
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Drives: '13 E92 M3
Join Date: Jun 2012
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^ I don't want to be offensive but where did you get that idea? I don't know what the normal PSI recommendation is for the M3's but the tires build up heat and increase the pressure with track use. In FL, I've seen the tires go up about 12 PSI from the beginning to the end of the session.

If you carry too much pressure, let alone the fact that you may actually blow up the tire but there is also the fact that the tire's surface will be rounder therefore decreasing your contact patch with the road and actually making the handling worse.