Caltrac Tuning Info LOOK HERE

If any of you guys leave off of a transbrake, I can tell you what fixed my Caltrac issues.

I had done everything that the guys at Calvert told me to do. The car would hook for a split second and then unload the tires causing a violent spin.

All they kept preaching was loose rear shocks and a little preload on the springs.

Finally got to watch video of the car and noticed what was causing the initial hook and then violent tire spin. The rear shocks were too loose and were bouncing the tires back up off of the track and unloading them for one thing. The other thing was that the suspension being preloaded was not allowing it the travel needed to work properly with the hard hit of the transbrake. By being preloaded, there is not enough travel or motion to help make the hit of the transbrake more gradual in hitting the tires.

All that I did was set an air gap between the lever and the top of the spring. This gap was about the thickness of a nickel. After that, I tightened the rear shocks extension to 7 or 8 clicks out of a possible 12.

Car started hooking hard and printing consistent 60' times after that. My setup on my Volare wagon street/strip car is totally different. It's a footbrake car with a 2.74 first gear set and 3.73 rear gears. Its a consistent 7.30's car in the 1/8th mile. It is preloaded a little and the shocks are set on 3 or 4. It also hooks hard off of the line, but with the opposite setup.

Sorry for being long winded, but wanted to explain it all in hopes that it may help someone who is having issues.