Is J-Bar still adjusted to affect rear tire loading?

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  • MasterSbilt_Racer
    Senior Member
    • May 2007
    • 14303

    #16
    Additionally, any load carried by the j bar is load that cannot be carried by the 5th coil, 4 links, LR spring, or RR spring, because the j bar has taken it. Load on the rr spring would do a whole lot more to "stick the rr".
    Modern Day Spec Wedge Racing

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    • KTMLew
      Senior Member
      • May 2007
      • 1164

      #17
      Originally posted by MasterSbilt_Racer View Post
      Additionally, any load carried by the j bar is load that cannot be carried by the 5th coil, 4 links, LR spring, or RR spring, because the j bar has taken it. Load on the rr spring would do a whole lot more to "stick the rr".
      Doesn't seem like modern setups use RR spring very much at all. Next to no support there. Just let it lay ona bump stop. IMO the J-bar is doing more to support RR than the spring. Does anyone still make a springbar J-Bar that has some cushion? I was around this stuff back in the day when nearly every bar that was in compression was a spring bar. Consistency was the issue. ridiculous amount of maintenance required.

      Your mentioning the 5th coil made my brain wonder...wouldn't J-bar, which is right side of pinion mounted, tend to counter the torque arm movement to some degree? I realize leverage is a thing. Load cells everywhere. We need load cells and MORE COMPUTERS!

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      • MasterSbilt_Racer
        Senior Member
        • May 2007
        • 14303

        #18
        Originally posted by KTMLew View Post
        Doesn't seem like modern setups use RR spring very much at all. Next to no support there. Just let it lay ona bump stop. IMO the J-bar is doing more to support RR than the spring. Does anyone still make a springbar J-Bar that has some cushion? I was around this stuff back in the day when nearly every bar that was in compression was a spring bar. Consistency was the issue. ridiculous amount of maintenance required.

        Your mentioning the 5th coil made my brain wonder...wouldn't J-bar, which is right side of pinion mounted, tend to counter the torque arm movement to some degree? I realize leverage is a thing. Load cells everywhere. We need load cells and MORE COMPUTERS!
        When I say rr spring, I mean everything on the coilover that takes load. The cars are not traveling much on the rr. Be it metallic or rubber or plastic, it's supporting weight.
        Modern Day Spec Wedge Racing

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        • KTMLew
          Senior Member
          • May 2007
          • 1164

          #19
          Originally posted by MasterSbilt_Racer View Post
          When I say rr spring, I mean everything on the coilover that takes load. The cars are not traveling much on the rr. Be it metallic or rubber or plastic, it's supporting weight.
          They have become large go-karts. Tire is the suspension. So...back to loading...

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          • MasterSbilt_Racer
            Senior Member
            • May 2007
            • 14303

            #20
            Originally posted by KTMLew View Post
            They have become large go-karts. Tire is the suspension. So...back to loading...
            Thats true to some extent. It's entirely true if you are an average to bad car.
            Modern Day Spec Wedge Racing

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            • Ltemodel
              Senior Member
              • Jun 2007
              • 307

              #21
              I see something that keeps getting overlooked by guys trying to get more height on the LR. When running a beam axle, you will need to also increase the roll angle or you will start pulling load off the right rear when increasing the height of the Lr.
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              • Kromulous
                Senior Member
                • May 2007
                • 3008

                #22
                Secret to more LR Hike, is compressing the RR, and keeping it compressed.

                Just say no...

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                • MasterSbilt_Racer
                  Senior Member
                  • May 2007
                  • 14303

                  #23
                  Originally posted by Kromulous View Post
                  Secret to more LR Hike, is compressing the RR, and keeping it compressed.
                  I thought it was just a longer chain.
                  Modern Day Spec Wedge Racing

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                  • Kromulous
                    Senior Member
                    • May 2007
                    • 3008

                    #24
                    Well, that too.

                    But the Chain, a tight Chain, is just a pivot point, from right to left.

                    In my humble opinion, and often wrong... LOL

                    Just say no...

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                    • Jim11h
                      Senior Member
                      • May 2007
                      • 1501

                      #25
                      Ok masters, that comment has my attention, what are you beating around the bush about?

                      Comment

                      • MasterSbilt_Racer
                        Senior Member
                        • May 2007
                        • 14303

                        #26
                        Originally posted by Jim11h View Post
                        Ok masters, that comment has my attention, what are you beating around the bush about?
                        I was honestly just being a bit dense/sarcastic.

                        The droop rule and how high your deck gets comes down to 2 thoughts.

                        1) how's it hanging?
                        2) how do you increase LR displacement with similar roll angle?
                        Modern Day Spec Wedge Racing

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