How much air are you running in them,,,,I was used to Firestone/Pheonix too. I found the Hoosiers like a LOT more air pressure. I run my 29.5X11.5X15W at 12.5-13#. I only have about 40 hits on them and a new car combo, so I am probably not done with the air yet. I started out with the pressure I had ran in the Firestone/Phoenix and was way too low....

If you like drag racing, support your local track.