What will happen if...

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  • badfast47
    Senior Member
    • Dec 2008
    • 139

    #1

    What will happen if...

    On a clamped 4 bar set up with the Lr spring in front. RR spring on top. Shorten the RR chain to about one inch of slack and have the top bar at 7 deg. and lower bar at 5 deg. angle. Driver wants to get the car to roll over on the right rear. Will this do it or what can be done if any thing ? Right now the RR spring is a 225 and a 94 shock. THX
  • MasterSbilt_Racer
    Senior Member
    • May 2007
    • 14303

    #2
    Originally posted by badfast47 View Post
    On a clamped 4 bar set up with the Lr spring in front. RR spring on top. Shorten the RR chain to about one inch of slack and have the top bar at 7 deg. and lower bar at 5 deg. angle. Driver wants to get the car to roll over on the right rear. Will this do it or what can be done if any thing ? Right now the RR spring is a 225 and a 94 shock. THX
    Not sure what current bar angles are, but that setup should result in lots of wheelies.
    Modern Day Spec Wedge Racing

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    • badfast47
      Senior Member
      • Dec 2008
      • 139

      #3
      Didn't do much but make things worse. Back to the original set up

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      • Jim11h
        Senior Member
        • May 2007
        • 1501

        #4
        Soften RR, pitch in harder, more j-bar, lower top RR bar 1 hole. There's several ways but why and what's the goal? My assumption is looking for a feel and I think I'd drop RR upper and put a split valve shock on RR to hold it there once rolls.

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        • xxxmod
          Senior Member
          • Jan 2012
          • 111

          #5
          Originally posted by badfast47 View Post
          On a clamped 4 bar set up with the Lr spring in front. RR spring on top. Shorten the RR chain to about one inch of slack and have the top bar at 7 deg. and lower bar at 5 deg. angle. Driver wants to get the car to roll over on the right rear. Will this do it or what can be done if any thing ? Right now the RR spring is a 225 and a 94 shock. THX
          Raise the fuel cell, battery and any lead up.

          Comment

          • Mr.Kennedy777
            Senior Member
            • Aug 2016
            • 212

            #6
            Level your top link out some by dropping it on the housing one hole..Drop j bar on frame and pinion to keep same angle but lower in car. Keep your rear trailing arm bar angles the same. Should get more RR roll that way. If all else fails take some RR load out of the car.

            Comment

            • Mr.Kennedy777
              Senior Member
              • Aug 2016
              • 212

              #7
              A good RR shock for a modified would be like a 3 compression 6 rebound unless you're on a heavy track than a 3-3 or 4-4 is good.. Even though those numbers really mean nothing... It's an approximation.

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