I'm competing in the Gambler's Run Open Road Race next weekend www.openroadracing.com and I'm wonder what tire pressure I should use front and back?

I'm driving an 06 WRX wagon with OEM RE92's (only 5.5K on them). I'll be in the 105 mph class and the course length is about 50 miles each way. Think Nevada open roads with wide sweepers and long straight stretches.

Thanks!

 

The race has a speed limit? how the F do you pass if you all go the same speed?

 

ya good point???

 

Open Road Racing is basically a one stage Time, Speed, Distance (TSD) rally with speed classes going up in five mile increments from 85 mph to 170 mph, plus an "open" class for those attempting 200+ mph. It depends on the level of safety equipment in the car and the experience of the driver as to how fast they are allowed to go.

TSD rallies are accuracy based, with the winner of each speed class being the car to cross the finish line closest to the calculated true time for that particular speed and distance.

Okay, so back to the original question; if I'm going to be driving 105 mph for 50 miles what tire pressure should I have in the front and back tires?