Drag radial life/ max passes ?

[Mike Pearson]

I run 13.5 x31.5 Hoosiers radials on my car and have for quite a few years. I get well over 100 runs on a set. I run between 12 and 14 lbs air pressure. If I go higher they seem to wobble more. After what Ed Weight said I might have to try a set of MT’s next. I ran a worn out set with almost no holes at Rockingham a couple of weeks ago and they worked perfect when some were complaining about traction. My short times were almost the same every round.

[Lenny5160]

Originally Posted by MEXJOE

You should never run a radial lower than 18 psi. You run the risk of the tire balling up and running over the top of it’s self, I learned that the hard way.

I've run everything from 16-26 psi and saw zero difference in performance. I'm just trying to get the tire to wear evenly.

Even at 17, I still wear the centers out first but I really don't want to run less. I've been using 17 for at least 3 seasons and haven't seen any ill effects, although I usually only check them before the first and second passes so I may end up closer to 18 by the end of the day.

[Ed Wright]

Might try wider wheels, Tony.

[Lenny5160]

Originally Posted by Ed Wright

Might try wider wheels, Tony.

I have 9" tires and a 10" wheel. Don't think I can go any wider! I also have 8" wheels and the 10" are definitely better.