Posted by Vettejade on April 21, 2018

Can anyone please help me with recommended tire pressure for Dunlop Sport Maxx Race 325/30R19 101 Y Tire Pressure for street driving as well as track day at the racing circuit, for the rear wheels on my 2011 corvette grandsport for a road / track temperature of 25 to 28 degree celsius / centigrade?

Answers / Replies
  • Posted by Jadatis on May 25, 2018

    As "pigheader Dutch self-declared tire pressure specialist" I can calculate a safe lowest tire pressure. Got hold of the official European formula and went running with it. But you have to give me next data. FROM CAR: Accurate determined weights on separate tires best, 2nd best axles, otherwise GAWR GVWR, empty weight and the way you load it and motor in front or back, so I can estimate it (but dangerous). Also give max speed you use and won't go over for even a minute. FROM TIRES: max load or load index (101 li). Speed code (Y). Kind of tire XL or SL, but I can google it. Pressure advice is for 18 / 20 degrees Celsius determined, so for higher outside temps you officially should have to use higher cold pressure. Cold pressure is when temp inside tire = temp outside tire, that simple.

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