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Technical Sway bar on Model a build

Discussion in 'Traditional Hot Rods' started by David Knapp, Nov 10, 2016.

  1. David Knapp
    Joined: May 16, 2014
    Posts: 105

    David Knapp
    Member

    Was just checking if anyone thought of putting a sway bar on rear of model a.
    I'm running coil over shocks and seem it needs a little stabilizing .Can you really tell the difference after installing one ?Any in put on this subject would be grateful.
     
  2. oj
    Joined: Jul 27, 2008
    Posts: 6,198

    oj
    Member

    If you run the shocks at a slight angle where they are closer at top than bottom you'll gain stability, that might be all you need.
     
  3. tikiwagon13
    Joined: Feb 23, 2011
    Posts: 371

    tikiwagon13
    Member

    Define stability. What is your setup in the rear, other than coilovers?
     
  4. Dino 64
    Joined: Jul 13, 2012
    Posts: 1,778

    Dino 64
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    from Virginia

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  5. David Knapp
    Joined: May 16, 2014
    Posts: 105

    David Knapp
    Member

    This is what my setup is if you can tell by the picture
     
  6. David Knapp
    Joined: May 16, 2014
    Posts: 105

    David Knapp
    Member

    upload_2016-11-11_15-0-49.png
     
  7. Atwater Mike
    Joined: May 31, 2002
    Posts: 9,851

    Atwater Mike
    ALLIANCE MEMBER

    Think he's talking about 'Anti-Roll' bar. (frame-mounted transverse bar attached to arms that are linked to axle housing) Bar's resistance to twist in turns keeps car level.
     
  8. I'm thinking your concern is excessive body roll when turning? I have seen new ones advertised for sale for hot rods but would not know what kind of vehicle to look for in a wrecking yard that would work properly. I understand the bar used can have too much resistance and cause other handling problems.
    Great question.
     
    Last edited: Nov 11, 2016
  9. tikiwagon13
    Joined: Feb 23, 2011
    Posts: 371

    tikiwagon13
    Member

    I'm assuming that you are running ladder bars, or similar and a panhard bar, pic is not really clear. Have you driven it? The reason I'm asking is based on the pic it looks like it still under construction. I have the same setup in the back of my car, no anti-roll bar, handles just fine, granted mine is very low. If you still feel you need an anti-roll bar, there are kits available from the circle track suppliers that would work well, some are even adjustable.
     
  10. Rex Schimmer
    Joined: Nov 17, 2006
    Posts: 743

    Rex Schimmer
    Member
    from Fulton, CA

    You need a panhard rod to locate the rear end from side to side. Panhard rods are some times called sway bars which is also the misnomer for an anti roll bar.

    Rex
     
    Dino64 likes this.
  11. redo32
    Joined: Jul 16, 2008
    Posts: 1,534

    redo32
    Member

    Your coilovers are mounted too close together. They will be more stable the farther out you can move them without interfering with the wheel tire combo. 1004sr_16_o-model_a_signature_chassis-rear_suspension.jpg
     
    samuelscreech, 54reno and AHotRod like this.
  12. redo32
    Joined: Jul 16, 2008
    Posts: 1,534

    redo32
    Member

    After Ryan's post on watermarks and me posting street roddy stuff, I can only beg for forgiveness. I will have an extra scotch after work to sooth my conscience.
     
    Dino64 and Johnny Gee like this.
  13. Ebbsspeed
    Joined: Nov 11, 2005
    Posts: 4,837

    Ebbsspeed
    ALLIANCE MEMBER

    ^^^^^^^^^This^^^^^^^^^^
     
    samuelscreech likes this.
  14. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 972

    19Eddy30
    Member
    from VA

    Your shocks at the top look to be to close , but it might be the angle of the photo ,
    Your coil over's look beefy , are they the wright sping rate ,
    I run a triangle four bar with Q A1's with no problems
     
  15. gimpyshotrods
    Joined: May 20, 2009
    Posts: 16,497

    gimpyshotrods
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  16. David Knapp
    Joined: May 16, 2014
    Posts: 105

    David Knapp
    Member

    I have not put her on the road yet ,its still under construction .
    I'm just getting some input ,this is my first model a build .
    Want to thank all the input
     
  17. tikiwagon13
    Joined: Feb 23, 2011
    Posts: 371

    tikiwagon13
    Member

    in all honesty, get it on the road first, then assess whether in needs it or not.
     

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