We ran that tire in Hot Street, it was the mandatory tire for the class. The Cuda weighed between 3350-70. It was a 12" beadlocked wheel with and without tubes. This was at 11lbs no tubes and you can see how it was killing the tire. We never had a lot of luck with MORE pressure. Generally we ended up between 10.2-11.2lbs of pressure. These things might last two races at most on this car. But the kept working great on lower HP stuff.