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2004 GT3 Autocross tire pressures (Hoosiers)

Wheels and Tires

Vehicle Information: Year: 2004; Body Type: Coupe; Total Mileage: 3000;

Hi, I have Hoosier A3S03s in 225/40ZR18 & 285/30 ZR 18 sizes for my 2004 GT3 based upon our previous discussions. I am about to try them out this weekend against a bunch of Corvette Z06s. I wonder if you have any suggestions about an initial cold tire pressure setting. The factory recommends 32/39 for the Michelin Pilot Sports. I am especially interested in the front/rear differential. Hoosier provides the following recommendations:Vehicle Size: 1800-2200 lbs.Hot: 39-42Cold: 31-36Vehicle Size: 2200-2600 lbs.Hot: 40-43Cold: 32-37Vehicle Size: 2600-3000 lbs.Hot: 42-46Cold: 32-37Vehicle Size: over 3000 lbs.Hot: 43-48Cold: 32-38Thanks

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