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Thread: Cal-Trac help

  1. #1

    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:

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    Sep 2007
    Location
    Montvale, VA
    Posts
    1,431
    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.
    "The problem with quotes on the Internet is that you cannot confirm their validity"- Abraham Lincoln

  3. #3
    Senior Member RACING JUNKIE
    Join Date
    Sep 2007
    Location
    Montvale, VA
    Posts
    1,431
    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!
    "The problem with quotes on the Internet is that you cannot confirm their validity"- Abraham Lincoln

  4. #4
    Olds 48 is right. As a friend of mine told me, every time you change something it's an experiment.


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