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Thread: Composite leaf springs
          
   
   

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  1. #1
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
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    Composite leaf springs

     



    I want to run a pair of composite leaf springs under the '57.--- Wondering if anyone might have a good source for Landrum or ???? brand composite leaf springs??? Can't find much around here.

    Thanks
    Yesterday is history, tomorrow is a mystery, Live for Today!
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  2. #2
    Bob Parmenter's Avatar
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    I believe Speedy Bill sells them.
    Your Uncle Bob, Senior Geezer Curmudgeon

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  3. #3
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
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    Quote Originally Posted by Bob Parmenter View Post
    I believe Speedy Bill sells them.
    Not much selection on rate or size in the book, I'll give them a call in see if they can order others....
    Yesterday is history, tomorrow is a mystery, Live for Today!
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  4. #4
    Bob Parmenter's Avatar
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    I've experienced that on Posie springs with them. They don't catalog them all, but either have them or arrange a drop ship.
    Your Uncle Bob, Senior Geezer Curmudgeon

    It's much easier to promise someone a "free" ride on the wagon than to urge them to pull it.

    Luck occurs when preparation and opportunity converge.

  5. #5
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
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    Quote Originally Posted by Bob Parmenter View Post
    I've experienced that on Posie springs with them. They don't catalog them all, but either have them or arrange a drop ship.
    Yup, it is, just got off the phone with one of the tech people, got all the information I need to have for the car then he will order me any length, rate, and pin location I want!!!! Kewl deal, thanks Bob!
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  6. #6
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    Dave, I know very little about composite springs, what are the advantages and disadvantages?

    Don

  7. #7
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
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    Big advantage is weight, two composite springs weigh about 16 lbs. The stock 3 leaf springs for the car are right at 40 lbs. each, so a net loss of 64 lbs. The '57 will also have housing floaters, ladder bars, and sliders instead of shackles. Disadvantage, about twice as much money.

    We had them on a late model circle burner many years ago. They stand up very well to racing so they'll do great on a street car! Lots of options when you order them including rate, center bolt location, mount size, lateral stiffness, width, etc.
    Yesterday is history, tomorrow is a mystery, Live for Today!
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  8. #8
    robot's Avatar
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    Other advantage is cycle life....min of 10^6 cycles with full spring rate

  9. #9
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
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    Quote Originally Posted by robot View Post
    Other advantage is cycle life....min of 10^6 cycles with full spring rate
    Thanks, that's the other I didn't remember!!!!
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  10. #10
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    Dave I never heard of those either. Pretty cool. Found an article talking all about them in Circle track racing
    Leaf Spring Tech - Install - Terminology & Overview - Circle Track
    " "No matter where you go, there you are!" Steve.

  11. #11
    jerry clayton's Avatar
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    I've used them on some corvette style suspensions but what are you going to do about the ends for the shackles/mounts???

  12. #12
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
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    Think I'll use a slider on the rear instead of shackles, maybe a multi-position bolt through mount on the front....
    Yesterday is history, tomorrow is a mystery, Live for Today!
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  13. #13
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    Jerry,when you order them up they'll put what ever you need on em.

  14. #14
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    yep you can get them just like steel leafs but about 1/3 the weight
    Charlie
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  15. #15
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
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    Quote Originally Posted by stovens View Post
    Dave I never heard of those either. Pretty cool. Found an article talking all about them in Circle track racing
    Leaf Spring Tech - Install - Terminology & Overview - Circle Track
    Neat article, covers some of the basics. Some of the information would remain the same for street use, but there has to be some changes for street vs. circle burnin'. Leaf springs are for the most part overlooked for Hot Rod suspension, setting up coilovers is a lot less complex but the chassis tuner in me really likes the added adjustability of leafs, ladder bars, and good shocks!
    cffisher likes this.
    Yesterday is history, tomorrow is a mystery, Live for Today!
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