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-   -   Cal-Trac help (https://www.racingjunk.com/forums/showthread.php?t=30435)

Birddog95 05-24-2011 02:37 PM

Cal-Trac help
 
Having some issues with planting the tires on my 64 Belvedere. I have a blown BBD Belvedere (street car) that I started taking to the track. I'm running 28X9 hoosiers and the car was blowing the tires off 50' out from the start line. Since then, I put 90/10 shocks in the front, moved the bars to the top hole and adjusted the QA1 single adjustables to 5 from softest. It hooks OK and pulls the front tires 3" then proceeds to bounce them to 660' mark :roll: Basketball is fun but not with a car. What can I do to get the front end to lift and set the front down and stay down? When I had it in the lower hole, it didn't really seem to hit the tires hard enough and the back end seemed to float. The car weighs 4000lbs and am running 14 lbs in the tires (any lower and the back end dangerously floats). Any suggestions would be appriciated. Thanks!
FYI, Last weekend we ran a 10.83 at 128 MPH at 4200' with 4 lbs boost :wink:

olds48 08-26-2011 08:20 PM

I run in a street class full of caltracs.All those guys will tell you: Call the company for advice.I'm sure you can get plenty of great suggestions on here,but nobody knows more about caltracs than the guys who invented 'em.

olds48 08-26-2011 08:22 PM

Also,if your rear suspension is too soft it will cause it to bounce like that.Could need stiffer shock setting OR more spring rate.There is no one-size -fits-all. Trial and error my good man!

bhrsavage 09-02-2011 12:54 PM

Olds 48 is right. As a friend of mine told me, every time you change something it's an experiment.


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