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Thread: 250lb springs on highboy makes sky jacker ad
          
   
   

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  1. #7
    SBC's Avatar
    SBC
    SBC is offline CHR Member Visit my Photo Gallery
    Join Date
    Nov 2004
    Location
    Magnolia
    Car Year, Make, Model: 69 Chevy Nova 283 4-spd
    Posts
    443

    [QUOTE}my question is do these settle?[/QUOTE]

    Springs do not settle. Sagging suspension is due to spring over exertion, that is stress beyond the springs limit (like hitting pot holes, or overloading the trunk with bags of cement on a Home Depot trip).

    A 250# will absorb energy at a rate of #250/in.
    If you put 500# on it - it will store 500# of potential energy by dropping 2 inches. This assumes the spring sits at 90 degrees.

    A 30 degree offset reduces the downward force on the spring by 30%.
    So now it only stores ~333 pounds of energy and drops only ~1.3 inches.

    At least that's the theory behind the issue -

    The experienced builders here know exactly what is needed.
    Last edited by SBC; 06-15-2007 at 09:15 AM.
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