[TR] tire pressures

[Q]

Tire pressure is a function of how many pounds of load the tire is actually supporting not a fraction of the ultimate design load limits of the tire.

If you run that much pressure the contact patch area will be greatly reduced and you will wear out the center of the tread first. 

Traction may or may not be effected.  Racers often run higher pressure to reduce sidewall flex and to have less heat gain. 

Edward Hamer
Petaluma CA