What do I need to set the camber and toe at home? - Page 2
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  1. #11
    Exceeded sell by date Plumpcars's Avatar
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    Toe out and 3.5 degree negative camber! Where are those specs from Paul?

    Those sound like track settings.
    Last edited by Plumpcars; 24-08-2011 at 07:39.

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  3. #12
    Exceeded sell by date Plumpcars's Avatar
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    Stolen from a Camaro forum.




    Ok so I stole the following specs from a chicane post:


    As per Global west:

    Driver side / Passenger side
    Caster 2 degree’s positive / Caster 2 ½ degree’s positive
    Camber ½ to ¾ degree negative / Camber ½ to ¾ degree negative
    Set toe to toe-in (3/32 total) / Set toe to toe-in (3/32 total)


    As per DSE:

    Driver side / Passenger side
    Caster 5 degree's positive / Caster 5 degree's positive
    Camber ½ degree negative / Camber ½ degree negative
    Set toe to toe-in (1/16 total) / Set toe to toe-in (1/16 total) 1/8 overall


    As per Guldstrand:

    Driver side / Passenger side
    Caster 3 degree's positive / Caster 3 ½ degree's positive
    Camber 3/4 to 1 degree negative / Camber 3/4 to 1 degree negative
    Set toe to toe-in (1/16 total) / Set toe to toe-in (1/16 total) 1/8 overall

    Also per David Pozzi's page:


    Guldstrand recommends the following specs for a "touring car":


    Caster: 3 - 4 degrees positive (+) PS = more, manual steer less.
    Camber: 1/4 to 1/2 degrees negative (-)
    With upper a-arm relocation Camber: 0 degrees
    Toe-in: 0 - 1/8 inch Guldstrand recomends for racing:

    (assumes "Guldstrand mod" is done)

    Caster 3 to 4 1/8 deg pos
    Camber 1.5 to 2 deg neg
    Toe in 1/8" out to 1/8" in (I would try 1/8" out first) more neg camber = more toe out. Herb Adams recomends these alignment specs for the street:


    1 degree positive caster ( I would use 3.5 degrees if PS)
    1 degree negative camber.
    1/16" toe in Stock factory alignment specs:


    Caster +1/2 deg
    Camber + 1/4 to 1/2 deg
    Toe-in 1/8" to 1/4" (Radial tires need less toe-in, use 1/8" or less for them) David has recommend his specs before but I wanted to make sure I got the right ones lol.

    I'm thinking from reading other posts that if I can get 3* positive caster out of the unmodded geomtry I'm doing good? Is there a limitation on the ability to get a full 1* negative camber? Finally 1/16 toe in sounds like the way to go?

    Thanks to the suspension experts for helping answer yet another alignment question.
    Last edited by Plumpcars; 24-08-2011 at 08:12.

  4. #13
    Global Warmer Paul Y's Avatar
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    They did seem a bit aggressive I must admit but these are supposedly the standard settings for a Z28!

    When I stopped racing those silly cars with the engine hanging out over the rear wheels I sold all my suspension stuff, regretting it now....

    Thanks for that Steve, catch up later.

    P.
    Only those who will risk going too far...can possibly find out how far one can go." T S Elliot

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  6. #14
    Exceeded sell by date Plumpcars's Avatar
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    They are not the standard settings in my books!

  7. #15
    Dragging not Bragging vince-305's Avatar
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    Steve ....... Thanks mate

    Paul ............... i wouldnt use those settings if it were my car

    Is the Z28 a mc pherson set up on the front . ??????

    The settings that i put up are where id start from i didnt even think about what car it was ................. they were general settings and would get you too the MOT station and even further
    Bit'z 'N' Piece's
    Ford consul mk2 chevy powered highrider

  8. #16
    Rods 'n' Sods Junkie
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    the garage i worked at where i did my apprenticeship set up all the race cars with fishing line & how i've done my gerometry since.

    get 4x 1" angle, approx 1" long & usung hack saw, cut a small groove to support the line.
    push the car forwards & back a few times (without touching the brakes) to settle everything.
    using a tape measure (or similar) place the angle mid way up the tyre & hold in place with duct tape (you want the angle on the outside front corner of front wheels & outside rear corners of rear wheels)
    tie 1 end of the line to the car (rear towing eye would be fine) & run the line round, making sure it's tight & sitting in the grooves you've cut. tie off the other end.
    you cannow measure toe using the edge of the rim.

    for camber, ensure the car is level on the floor, if it's been moved, resettle by pushing forwards & back a few times.
    tie a nut (13mm/1/2" is fine) to some fishing line (x2 if just able to adjust front camber, x4 if able to adjust front & ear camber)
    secure the fishing line to the body with masking tape, so it hangs central to the wheel & with the nut just off the floor (if the line or nut are touching the tyre, if they are, secure a spacer onto the wing using masking tape)
    you can now measure the camber off the rim.

    ideally, you want the line about 1" off the rim, but it's not critical, as you're not measuring the gap, you're measuring the angles of the wheel.

    we set up all our race cars like this, whether single seaters, rally, tin tops, lotus 7 style etc & they handled spot on. even the body shop couldn't improve on our setting up using their 4 wheel laser aligner

  9. #17
    Exceeded sell by date Plumpcars's Avatar
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    How did you set caster, thats always the tricky one without the correct equipment?

  10. #18
    Rods 'n' Sods Junkie
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    the plumb can be hung in front or beind the suspension, it doesn't matter as you're still measuring the angle of caster.
    the only differences are:-
    if tube frame, secure the plumb to either the tube, or secure a bar across the chassis & hang the plumb off that.
    if inner wing, you can secure with either masking tape (if ally tub) or tie the plumb to a small magnet (but big enough to hold the weight).
    you can then measure plumb to suspension to give your caster angle

  11. #19
    Global Warmer Paul Y's Avatar
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    Thank you very much for the lesson, it really goes to show the worth of our forum.

    It also shows how reliant you can become on technology as, without my all singing all dancing technology I was really struggling to work out how to do this.

    Many thanks again, on my way to buy some fishing line!

    P.
    Only those who will risk going too far...can possibly find out how far one can go." T S Elliot

  12. #20
    Global Warmer Paul Y's Avatar
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    Quote Originally Posted by vince-305 View Post
    Steve ....... Thanks mate

    Paul ............... i wouldnt use those settings if it were my car

    Is the Z28 a mc pherson set up on the front . ??????

    The settings that i put up are where id start from i didnt even think about what car it was ................. they were general settings and would get you too the MOT station and even further
    Vince,

    Just goes to show you should not believe everything you read on the web!

    P.
    Only those who will risk going too far...can possibly find out how far one can go." T S Elliot

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