Register now to get rid of these ads!

Can quarter elliptical springs be splayed?

Discussion in 'The Hokey Ass Message Board' started by cubed, Jan 16, 2008.

  1. cubed
    Joined: Aug 21, 2007
    Posts: 117

    cubed
    Member
    from Canada

    Can quarter elliptic springs be splayed or do they need to be parallel to each other?
     
  2. 61bone
    Joined: Feb 12, 2005
    Posts: 890

    61bone
    Member

    Wouldn't be a good idea. The springs will bind in the pivots. Even parallel they do some, but having them splayed out would make the bind unacceptable.:)
     
  3. Unkl Ian
    Joined: Mar 29, 2001
    Posts: 13,509

    Unkl Ian

    If you run shackles,they can be splayed.
    Without shackles,they want to be parallel.

    Do a mock up,with just the main leaves,to prove it.
     
  4. The37Kid
    Joined: Apr 30, 2004
    Posts: 32,540

    The37Kid
    ALLIANCE MEMBER

    Bugatti used splayed rear springs on all the Type 35,37 and 51 GP cars, they worked just fine. The attachment end needs to be forged so it is parellel to the axle. Overland used the setup in the 1920's.
     
  5. cubed
    Joined: Aug 21, 2007
    Posts: 117

    cubed
    Member
    from Canada

    You lost me at: "The attachment end needs to be forged so it is parellel to the axle"
     
  6. They can be REALLY splayed, you just need shackles
    [​IMG]

    Willys-Overland 1924 had this setup too, gotta find the pics I have of Poor Boys Ed's ch***is
     
  7. cubed
    Joined: Aug 21, 2007
    Posts: 117

    cubed
    Member
    from Canada

    YES please find me pics! ;)
     
  8. Unkl Ian
    Joined: Mar 29, 2001
    Posts: 13,509

    Unkl Ian


    I think he means the eyes of the spring are "formed"
    so they are parallel with the axle at ***embly.

    Another possibility.
     
  9. OoltewahSpeedShop
    Joined: Oct 18, 2007
    Posts: 3,103

    OoltewahSpeedShop
    Member

    Are you wanting to splay them to avoid using a panhard bar? I'm working on a project using them to and wondered the same thing.

    Thanks,
    Kevin
     
  10. cubed
    Joined: Aug 21, 2007
    Posts: 117

    cubed
    Member
    from Canada

    I am going to use them in the rear of my A , the frame is originally splayed, so I was just going to mount them to go along with frame. I'm not sure about deleting the panhard, it poses an interesting question though.
     
  11. Why no transverse spring?
     
  12. You can splay them with an air complessor.

    Good luck.
     
  13. R Pope
    Joined: Jan 23, 2006
    Posts: 3,309

    R Pope
    Member

    The Overland had the front springs splayed at a 45 degree angle with no problems. The "A" frame is only ten deg. or so, shouldn't matter.
     
  14. The37Kid
    Joined: Apr 30, 2004
    Posts: 32,540

    The37Kid
    ALLIANCE MEMBER


    I can't find a photo, but the main leaf were the eye is rolled is bent inward so the bolt is in line with the axle housing, otherwise it will bind when moved.
     
  15. Unkl Ian
    Joined: Mar 29, 2001
    Posts: 13,509

    Unkl Ian


    Don't need a panhard bar with leafs,even if they are on an angle.
    Even at 45 degrees,not a problem.

    A lot of guys don't run them with transverse leaf springs.
     
  16. Unkl Ian
    Joined: Mar 29, 2001
    Posts: 13,509

    Unkl Ian

    That is what shackles are for.
     
  17. fab32
    Joined: May 14, 2002
    Posts: 13,985

    fab32
    Member Emeritus

    Surprised no one has mentioned that many OE's use unparallel leaf springs to cancel oscollations in the suspension. You don't need as heavy shock action with them mounted out of parallel, thus a softer ride.

    Frank
     
  18. hudsoncustom
    Joined: Oct 26, 2001
    Posts: 4,129

    hudsoncustom
    Member

    I don't see why it would be an issue. Hudson ran unparallel leaf springs under the "step down" cars.

    As long as the shackle end of the spring was parallel with the shackle (in line with), I don't see an issue.

    If you design the ch***is along the same lines as you would if you set up a coilspring rear you'd be OK I'd think. Most of those don't run parallel trailing arms either.


    Then again, I'm no ch***is tech, and I'm not sure if this is what you meant by "splayed"...
     
  19. GMC BUBBA
    Joined: Jun 15, 2006
    Posts: 3,420

    GMC BUBBA
    Member Emeritus

    I have a 25 chevy truck in the shop now ( a customers) that has factory (orginal equipment) splayed front quarter elliptical springs. i will snap a pic tomorrow.:)
     
  20. cubed
    Joined: Aug 21, 2007
    Posts: 117

    cubed
    Member
    from Canada

    Looking forward to seeing a factory setup.
     
  21. cubed
    Joined: Aug 21, 2007
    Posts: 117

    cubed
    Member
    from Canada

    After seeing an A that Pinkees Rod shop built with sectioned duece rails, rear quarter elliptics and X-mem ahead of rear axle, it has tons of trunk space and sits nice and low....
     
  22. cubed
    Joined: Aug 21, 2007
    Posts: 117

    cubed
    Member
    from Canada

    Anybody have any luck with pics of splayed springs?
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.