Originally Posted By Cab_Burge
Originally Posted By GY3
I raced my car again this weekend and it was hooking really well, but doesn't 60 ft. like it did with SS springs.

The car leaves smoother and more level and felt really good, though.

It had done a best of 1.54 60 ft. with SS springs but not consistently. It did 1.67 all day long with the Cal-Trac setup last Saturday. I have 3.54 gears ET Street Pro's and leave off idle. The engine is like a low rpm diesel and makes massive torque.

I use the Calvert (Rancho) 9 position shocks set on 7. We did change the upper mount on the shocks to get them more vertical.

The car drives excellent but I would really like to shave a tenth off consistantly.

Should I move the bar to the upper hole? I thought about rear sliders, too, but use the car a lot on the street and have heard they are noisy.

Will double adjustable shocks help?



The only way to find out what your combination and car likes the best is to test, test, and then test some more wrench work
Have you tested leaving at different RPM yet? If not try that also thumbs

x2 on Cab's comments.

I ran a best of 1.54 on SS springs, then switched to CalTracs with standard leaf springs and the same Rancho 5-way dampers I was using with the SS springs and dropped to a best of 1.51 and more consistency. Better engine and changing to split mono-leaf springs saw a best of 1.45, and still with the same old-style Ranchos. But there were preload & damping adjustments, launch RPM changes, tire pressure changes, etc., along the way.