Winter - stone cold pressure is 34 PSI FRONT AND REAR. In winter driving I generally pick up 2-3 psi when the tires warm up.
TRACK - stone cold is 30 front 28 rear. The tires pick up about 8 psi after a few laps on the track. Sometimes I start at 28 front 26 rear on really hot days. I can't always get away with this because the nannies kick in if the tire pressure is too low to begin with.
Again - winter tires are a square setup and the track ties and wheels are staggered. Both sets are 18" compared to the staggered 19's for summer OEMs.
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Current: 2017 ///M2 manual 2004 E85 Z-4 manual
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