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  1. #1

    Default Chassis Help Please

    Old under rail clamped Pierce Car.
    Run on a 1/4 mile medium to high bank track, gets black and slick.
    Car has a medium push on entry, heavy rear brake to turn.
    Good balance through turn, a little loose off turn, right rear tire substantially hotter than the left.
    Springs LF 650 RF 600 LR225 RR200
    Shocks LF slick track Right tie down LR9-2 RR 93
    Weight with 20 gal fuel-no driver=2300 lbs
    LS 51.6% Rear 57.4% 30lb L.R. Bite
    short panhand bar
    4 bar left side
    Z link RT with springs on top

  2. #2

    Default

    First thing I would do is raise the LR bite to about 75-80 and try it.
    Bill W. and Dr. Bob......who could have known.

  3. #3
    Join Date
    May 2010
    Posts
    632

    Default

    Fix your small push on entry FIRST, Why would you put a tie down on the RF when it's black slick?
    Last edited by Dirtrunner35; 07-14-2014 at 04:51 PM.

  4. #4
    Join Date
    Jul 2007
    Posts
    278

    Default

    if its tight on entry and loose off you could swap your front springs, increase lr bite and with the rr getting overly hot take out some panhard bar rake (helped on ours) just some thoughts good luck
    powerslave

  5. #5
    Join Date
    Dec 2007
    Location
    Red Dirt USA
    Posts
    1,024

    Default

    I consulted for a team that had a '06 Pierce 4/4 car. We ran a pair of 600's in the front. That will loosen your entry up, and slightly tighten your exit. Fifty lb spring changes are small changes on stock front ends.

  6. #6

    Default

    Rearend is to far to the left 51.6 is low should be 52.6 to 53 %%

  7. #7

    Default

    Do you have weight on the right side of the car

  8. #8
    Join Date
    May 2007
    Posts
    2,814

    Default

    check you rear shock angles 15 degrees both side , if you get that your left side % should be 52.2 or52.3 sounds like the rear end is to far to the left, if you have a quick change your short bar should be 14 3/4 to 15 in (real close).i wouldnt be afraid of running more left rear.

  9. #9
    Join Date
    Jan 2012
    Posts
    111

    Default

    4 bar the right side..leave the spring on top off the housing(better roll steer on entry)
    lose the short panhard,use a 18"to19" jbar 5.5" split ( more predictable,more sidebite,easier to drive)
    75lbs lr bite ( clamp cars are dumping there wedge the second you lift making them tight in anyway)

  10. #10

    Default

    NO WEIGHT ON RT SIDEOF CAR. driver only weighs 140lb. will check rear side to side tonight.

    thanks for your help. any body else ?

  11. #11
    Join Date
    May 2007
    Posts
    2,319

    Default

    How much toe? Caster split? Does it just push off the track if you use no brake?
    BUCKLE UP NOW, YA HEAR?

  12. #12
    Join Date
    Aug 2011
    Posts
    544

    Default

    Had same exact issue here and going from 40lb lr bite to 65 made my car awewome!

  13. #13
    Join Date
    Dec 2007
    Location
    Red Dirt USA
    Posts
    1,024

    Default

    We ran 60 in the example above. Also,ran LU bar in top hole for more drive off.

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