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      05-27-2010, 10:45 AM   #3
elh0102
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Drives: E92 M3
Join Date: Apr 2010
Location: USA

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Assuming the OE street tires, you are probably going to find that something in the 38-42 range, hot, will be your sweet spot, but you will have to experiment. And you are right, start a few pounds below your target range, and check the pressures immediately upon coming off track. Just noticed this thread is a few days old, how did it turn out?