[gogtogo]

Originally Posted by JD

In your first post you said you think the tires moved an inch on the rim with no transbrake and Hi-Tack? That seems a little strange. You are running 18 psi?

That’s correct, I did drop tire pressure to 15psi because the track was bad. 30-40ft our started to haze tires a bit according to buddy’s at the track. I’m new to the Pro 275’s so I’m playing with what works best with foot breaking the launch. Perhaps the launch I’m expecting with is the issue and not the rims at all? I have always been a slicks guy but like the stability and car also see’s a far amount of street time.

[JD]

Originally Posted by gogtogo

That’s correct, I did drop tire pressure to 15psi because the track was bad. 30-40ft our started to haze tires a bit according to buddy’s at the track. I’m new to the Pro 275’s so I’m playing with what works best with foot breaking the launch. Perhaps the launch I’m expecting with is the issue and not the rims at all? I have always been a slicks guy but like the stability and car also see’s a far amount of street time.

In my opinion, the key to the drag radial is to drive it into the ground and hold it there. That is why you will see guys with double adjustable shocks with loose on extension and tight on compression in the rear. Even when I was bracket racing I ran the radials at 18 PSI so I would stay with that. You will need to change your suspension over a little and get the tire applied as best as possible. A bias ply setup will not work for a radial tire and same goes in the other direction.

[Mike Davis]

Originally Posted by JD

In my opinion, the key to the drag radial is to drive it into the ground and hold it there. That is why you will see guys with double adjustable shocks with loose on extension and tight on compression in the rear. Even when I was bracket racing I ran the radials at 18 PSI so I would stay with that. You will need to change your suspension over a little and get the tire applied as best as possible. A bias ply setup will not work for a radial tire and same goes in the other direction.

Good Advice.
I ran up to 19.5lbs in my 275 radials and have never had one spin on the rim with Hi-Tack. I run the Pro Bracket Radial now and have run them anywhere from 18 to 21lbs.
Shocks are loose on extension and tight on compression. Have been 1.33 60ft at 3750lbs. with stock suspension.