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      11-01-2007, 01:29 PM   #18
RussRamz
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Drives: 2011 M3 Coupe Mineral White
Join Date: Sep 2007
Location: Adenau, GE via 3 years in dreadful El Paso, TX

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Quote:
Originally Posted by apexstrafer View Post
Wait, you went down to 30psi hot? That's way too low, you should be 38-40 hot. Cold temps don't really mean much, adjust em after doing a few laps, if you're not doing that already.
+1

38-40 is a great target temp when HOT. 30 is way too low--even dangerous. If you really want to measure accurately, get a pyrometer and measure the temp across the width of the tire when hot. Google search tire pressure and pyrometer and you'll understand this a little more.

Good luck!!!
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