4 link to 3 link

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  • floppyfoot
    Senior Member
    • May 2013
    • 124

    #1

    4 link to 3 link

    Had the right upper trailing arm mount crack open the housing and go part way inside the rear end. Welded it up and changed to a 3 link. What a difference in the car, more side bite and more forward bite. Had to make some changes that I was unsure what would happen. Took RF from a 900# spring to a 1000# spring: LF from a 800# spring to a 1100# spring: LR from a 13" 250# to a 13" 200# spring: RR from a 13" 200# to a 13" 250# spring. Left the lower trailing arms in stock mounting holes, there are almost level on both sides. Weights are with driver: LF 830#: RF 756#: LR 959#: RR 756#.Ride heights: LF 7 5/8", 8# air: RF 6 1/2", 14# air: LR 9 1/8", 8# air: RR 8 1/4", 12# air.The car has a push going in the turn, not real bad but still a push so it cannot be drove very deep into the turn. The last time that I tried raising the RF ride height, the car had a very horrible push in. Do not have another front spring unless I go to a 1300# spring. Running 1 1/2" stagger in the rear and 1/2" across the front. RF camber - 4. LF +2. The car does have good side bite and forward bite.Any other changes to help the push would be welcome.
  • speedbuggy
    Senior Member
    • Feb 2008
    • 259

    #2
    Change RR spring back to 200 or 225, depending on how much you need to loosen entry.

    Where did you put the panhard bar?

    Also, make sure suspension isn't bottoming out on the right side. You have reverse tilt in the car.

    Comment

    • floppyfoot
      Senior Member
      • May 2013
      • 124

      #3
      Reverse tilt is what all the others in our class are running, from the slowest to the fastest. The suspension is not bottoming out but is close to that. The panhard bar is level and has to the right side of the car behind the rearend and has to be at least 28" long. There is too much right side travl with the lighter spring, using a 13" there now and the 225 is an 11" spring. The jack screw for the RR is backed all the way off and the LR is down about 3".

      Comment

      • floppyfoot
        Senior Member
        • May 2013
        • 124

        #4
        Whoever you are. get off my post. I am asking for suggestions, not junk.

        Comment

        • Racer96m
          Senior Member
          • Feb 2008
          • 425

          #5
          How much rear stagger are you running?
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          Comment

          • floppyfoot
            Senior Member
            • May 2013
            • 124

            #6
            1 1/2" across the rear. Was told today that I needed at least 3". With the 4 link, anything over about 3/4" was to loose.

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