Raising lr lower bar

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  • awesome1
    Junior Member
    • Jan 2011
    • 3

    #1

    Raising lr lower bar

    What would a guy expect if he raised the lr lower four bar up equally on both ends? So up closer to rear end on birdcage side and the same amount up on chassis?
  • grt74
    Senior Member
    • Jul 2009
    • 1380

    #2
    quicker feel in the car

    Comment

    • billetbirdcage
      Senior Member
      • May 2007
      • 2020

      #3
      Originally posted by awesome1 View Post
      What would a guy expect if he raised the lr lower four bar up equally on both ends? So up closer to rear end on birdcage side and the same amount up on chassis?
      17" LRU at 25 degrees
      15" LRL at 10 degrees
      STD 4.5" up from center of axle

      Static thrust = 17.81 degrees

      dynamic at 4.4" of drop at cage

      Thrust = 36.66 degree's
      Index of cage = 10.05 degrees
      2.274" of forward movement of cage / rollsteer

      With LRL bar up 1" on cage to 3.5" below axle centerline - frame end also moved up 1"

      Static = 16.87

      Dynamic 4.4" of drop at cage

      Thrust = 35.70 degree's
      Index of cage = 11.40 degrees
      2.170" of forward movement of cage / rollsteer

      Comment

      • grt74
        Senior Member
        • Jul 2009
        • 1380

        #4
        Originally posted by billetbirdcage View Post
        17" LRU at 25 degrees
        15" LRL at 10 degrees
        STD 4.5" up from center of axle

        Static thrust = 17.81 degrees

        dynamic at 4.4" of drop at cage

        Thrust = 36.66 degree's
        Index of cage = 10.05 degrees
        2.274" of forward movement of cage / rollsteer

        With LRL bar up 1" on cage to 3.5" below axle centerline - frame end also moved up 1"

        Static = 16.87

        Dynamic 4.4" of drop at cage

        Thrust = 35.70 degree's
        Index of cage = 11.40 degrees
        2.170" of forward movement of cage / rollsteer
        like above and to my point the index of the cage is faster

        Comment

        • awesome1
          Junior Member
          • Jan 2011
          • 3

          #5
          Ok. So with it acting faster would you see an increase in traction or would you just feel it all happen sooner?

          Comment

          • Basecircle
            Member
            • Dec 2016
            • 82

            #6
            I would be careful moving the birdcage end up. I know we already have to run a bent bar on the LR lower for clearance. I’ve never moved that end, but definitely run it through it’s motion to be sure.

            Comment

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