If all you wanted to do was pre-load the right rear of a car to prevent the squat & twist on a dragstrip launch, they'd work well. Nothing close to an actual airbag setup tho.
As was pointed out, with preload they are great. I have used them on three 60s Chevy swb pus and a 66 Malibu. All raced heavily, street and strip. I didnt want to have or see traction bars, just wanted the street tires or slicks to spin without wheel hop. Bonus with the trucks was that I could still use them as such. Theyll work.
For racing it's just a matter of figuring out how much air to have in the bag to compensate for the drop and twist. Put 20psi in, try a launch and adjust from there. I'm sure you could have decent results just doing dry hops in the driveway. I've seen them work with success once dialed in. I didn't think you were gonna use em for anything else....
Cool thanks,,trying to figure out the Lemans either springs or coils so ,,trying to work with whats laying around I take it you would have more air on the right side,kinda like the extra leaf spring idea?
I've seen guys only run it in the right side, leaving the left with just the spring and adjusting that way. With pairs you would have more air in the right, correct.
I'd start off with no air, and then fill it until you start seeing the right side lift up. I'd back it off and then make a p***. I think I would start it at 15 psi but it's been 7-8 years since I used one.
I have a pair of them on my '64 GTO. They work great, I kept the 5 psi minimum in the left side bag and ran 15 psi in the right side at the track. The car hooked nicely with 10X28 slicks, I run a transbraked TH400 and 400 HP 455. On the street I use them to adjust the rear ride height, I keep 10 psi in both bags now. Going from the 5 psi minimum to the 25 psi max the rear of the car would raise up by 1-1/2", worked great when I was loading my car on the trailer to get added clearance for my header collectors.
The Jalopy Journal
