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      11-16-2011, 08:40 PM   #21
M3SQRD's Avatar

Drives: E92 M3,R56 S,F22 240iX,F82 M4
Join Date: Jun 2009
Location: EC

iTrader: (10)

Originally Posted by persian54 View Post
I've had session where it's pretty greasy.... but this was when i ran stock psi (35)

once i dropped them to 31/32, things got significantly better.

Lap times for me are a strange thing... I tend to have my off days and on days. I have had better lap times in 100+ heat than I have in cooler days, and vice versa...
So I can't say if they improved due to tire pressure or not

31/32 cold goes up to about 40 hot on hot days, 38-39 on cooler days

35 cold went way past 40...X.x.
Then it sounds like your starting pressures are OK once you adjusted them down. However, if you consistently run better lap times on a hot day then you should adjust your cold pressures up a couple of psi on cold days so hot pressures are always at 40 psi.

BTW, sorry to read about the nut job