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Thread: preload

  1. #1
    Junior Member APPRENTICE
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    preload

    hi help i have a chassis vega latter bar car .the guy that did have it 5f. so 120#s i weight 240 6f had to move seat back next to the tub the car truns right no matter what you do. do you thank i would need to ad weight to the right side

  2. #2
    Senior Member MASTER BUILDER
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    Put your butt in the car and have someone adjust the preload in the right bar till the front bolt slides in and out with no resistance. Lock her down and go race. If it still turns right then add right side preload one FLAT at a time till it straightens out.

    George
    http://www.gdmii.com/pics/81launchvidcapsig.jpg
    1981 Camaro @ 2594 lbs.
    496 cu. in. on 1150 Rupert alky
    Brodix BB2X heads touched by the magic hands of Curtis Boggs
    [email protected] Best 60' 1.18
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  3. #3
    Junior Member APPRENTICE
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    done did that put all preload it dont change its like right side not even hooking at all i even check the spool the car dont just go to the right it turns soon as it moves if it was as simple as truning a bar i would be asking

  4. #4
    Senior Member MASTER BUILDER
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    Sounds like you have something binding in there. Those ladder bars should work very free. If you have access to a set of scales I would scale the car and make a preload adjustment with it on the scales and see if it makes a difference in the corner weight. If not then you definately have something bound up or broken as in the bracket pulling away from the rear end housing or something of that nature. It doesn't take but a flat of a turn to make a noticeable change with a free and properly operating suspension.

    As far as just turning the bar thing...there's no way I can tell your experience level. You don't say so I can only start at the basics.

    George
    http://www.gdmii.com/pics/81launchvidcapsig.jpg
    1981 Camaro @ 2594 lbs.
    496 cu. in. on 1150 Rupert alky
    Brodix BB2X heads touched by the magic hands of Curtis Boggs
    [email protected] Best 60' 1.18
    www.motorsportsvillage.com

  5. #5
    Administrator RACING JUNKIE
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    Quote Originally Posted by br1984
    done did that put all preload it dont change its like right side not even hooking at all i even check the spool the car dont just go to the right it turns soon as it moves if it was as simple as truning a bar i would be asking
    Are you giving it negative preload by chance?
    There Is 1 Thing Better Than Cubic Inches,,,More Of Them

  6. #6
    Senior Member DYNO OPERATOR
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    Make sure this cars differential is in the car straight! it may be a tracking problem!!!!! David.

  7. #7
    Senior Member DYNO OPERATOR
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    If one wheelie bar wheel hits down hard it will lift one tire and will rapidly steer the car to the other side. Or if bar was raidically out of pre-laod adjusting range that could also give more traction to one tire.

    Ed
    " Let all things that hath breath, praise the Lord. Praise Ye the Lord" Psalms 150 vs 6.

  8. #8
    Senior Member RACING JUNKIE
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    Not mentioned here is check the tire rollout, if one tire rolls out less than the other it will never track right no matter how much adjustment you put into it.

    Just a thought.

    Zip.

  9. #9
    :shock:

  10. #10
    Off topic, but I wanted to say how very impressed I am with your knowledge. I am a very green pro street hot rodder and am learning a ton here. thanks!


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