no forward drive

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  • 95rayburn
    Senior Member
    • Sep 2012
    • 162

    #1

    no forward drive

    I have a 95 Rayburn swing arm under slung car can't seem to get any forward drive. Scale numbers are 54.8 cross 54.8 left and 57.3 rear it has a 400 LR and 350 rr any one got any suggestions?
  • MasterSbilt_Racer
    Senior Member
    • May 2007
    • 14324

    #2
    Replaced pullbar spring lately?
    Modern Day Spec Wedge Racing

    Comment

    • 95rayburn
      Senior Member
      • Sep 2012
      • 162

      #3
      No I haven't had it apart few weeks ago just looking at it didn't seem broke then but stiff as o board. I believe it probly came new on the car in 95 because when I called the other company's like winters for rear end parts and gave them the serial numbers they told me of was sold to CJ rayburn in 1995 and same with the rack

      Comment

      • MasterSbilt_Racer
        Senior Member
        • May 2007
        • 14324

        #4
        Those things don't last very long.
        Modern Day Spec Wedge Racing

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        • 4bangerhotrod
          Senior Member
          • Dec 2008
          • 374

          #5
          you def need to change the spring, it actually needs to be changed every few races, i think we changed them every 6 races if we went any longer we could start to notice a difference in the car. someone can post a link to the best place to get them, its been a few yrs since we had a rayburn an cant remember where we got them.
          thanks, 4bangerhotrod

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          • 95rayburn
            Senior Member
            • Sep 2012
            • 162

            #6
            OK thanks its like 2 inch in diameter and 4 inch long

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            • RACR_73s
              Senior Member
              • May 2007
              • 879

              #7
              mcmastercarr.com High-Performance Chrome-Silicon Steel Die Spring
              http://www.freewebs.com/schoener-racing

              Comment

              • hpmaster
                Banned
                • Aug 2009
                • 1088

                #8
                Originally posted by 95rayburn View Post
                I have a 95 Rayburn swing arm under slung car can't seem to get any forward drive. Scale numbers are 54.8 cross 54.8 left and 57.3 rear it has a 400 LR and 350 rr any one got any suggestions?
                On my old Rayburn we ran 450 lf 525 rf 400 lr 375 rr as our best dry slick sprng set up. The rear bar adjustments were all the way down on the left and all the way up on the right. Your percentages look ok but we ran alot of bite, over 300lbs, which gave us a high cross weight and I found that how much the rr was moved back also influenced drive off, more was better, to a point. Like everything, others will disagree, like CJ, but that car was fast when set like that on the slick.
                Last edited by hpmaster; 09-25-2012, 09:38 AM.

                Comment

                • F22 RAPTOR
                  Senior Member
                  • Jul 2010
                  • 1023

                  #9
                  Originally posted by 95rayburn View Post
                  I have a 95 Rayburn swing arm under slung car can't seem to get any forward drive. Scale numbers are 54.8 cross 54.8 left and 57.3 rear it has a 400 LR and 350 rr any one got any suggestions?
                  Need complete setup info. Also have you had the rails narrowed under the axel? 95 was a good year, but some mods are required to run the new setups.
                  "If racing were easy, everybody would do it."

                  #77 Leon "Slick" Sells

                  Comment

                  • dualdj1
                    Senior Member
                    • Jun 2009
                    • 654

                    #10
                    new pull bar spring for sure. then if you still are lacking, move it towards drivers side (both pinion and frame).

                    Comment

                    • 95rayburn
                      Senior Member
                      • Sep 2012
                      • 162

                      #11
                      no the rails are in the same spot on the lr i made that rail not so thick so the axle dosent hit it i was told to do that by billetbirdcage i believe and its a 1995 year lm chassis not a modified chassis

                      Comment

                      • F22 RAPTOR
                        Senior Member
                        • Jul 2010
                        • 1023

                        #12
                        Originally posted by 95rayburn View Post
                        no the rails are in the same spot on the lr i made that rail not so thick so the axle dosent hit it i was told to do that by billetbirdcage i believe and its a 1995 year lm chassis not a modified chassis
                        I only work on DLM's, no mods in my area at all. What spring pkg are you running?
                        "If racing were easy, everybody would do it."

                        #77 Leon "Slick" Sells

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                        • 95rayburn
                          Senior Member
                          • Sep 2012
                          • 162

                          #13
                          500 in the front i think never had them checked though and 350 in the rr and 400 in the lr

                          Comment

                          • 4bangerhotrod
                            Senior Member
                            • Dec 2008
                            • 374

                            #14
                            dont you thing that might be something important to know what springs you have in the front end of the car

                            Comment

                            • F22 RAPTOR
                              Senior Member
                              • Jul 2010
                              • 1023

                              #15
                              Know thy chassis and Know thy self.

                              Originally posted by 95rayburn View Post
                              500 in the front i think never had them checked though and 350 in the rr and 400 in the lr
                              You really need to, "Know" what your springs are... I know your new, but this is very important. A common mistake newbies make(and some veterans) is trying to fix the turn exit first, when the handling problem started much earlier. For example if your car is tight on entry and your braking it loose, you'll never get it to hookup like you want on exit. Also if your throttle tight thru the center you could get what's called a, "Push/Loose" condition and spin the tires on exit. What happens is you throttle up, have too much traction and the nose pushes. Next you crank in more wheel to try and turn the car until the frontend finally grips, snapping the rear loose and spinning off the corner. None of these may be your problem, but since your new I thought I'd share some experience.

                              The first rule of chassis tuning is, first fix entry, then fix the center and finally fix the exit.
                              "If racing were easy, everybody would do it."

                              #77 Leon "Slick" Sells

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