Your tire pressures will depend somewhat on the surface (track/parking lot) conditions, ambient temp, driving style, changing understeer/oversteer, etc. You probably will need to experiment a bit to find the "right" pressure.
get a good racing tire pressure gauge, best one of the oil filled ones that adapt for ambient temp. You can find them on amazon and ebay for around $40.
I find that my tires (Hancook Ventus V12 Evo2) when driven hard at AX or the track get slippery when very hot and I run much lower pressure than I do for normal spirited driving.
Different tires will act differently. Tire pressure for performance driving is a mix or art and science
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2004 Boxster S 6 speed - DRL relay hack, Polaris AutoTop DIY
2004 996 Targa Tip
Instructor - San Diego region
2014 Porsche Performance Driving School
2020 BMW X3, 2013 Ram 1500, 2016 Cmax, 2004 F-150 "Big Red"
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