Bms ride height

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  • Deish98
    Senior Member
    • Jan 2012
    • 238

    #1

    Bms ride height

    I'm running a 08 bms with under slung and I'm running in ump and I can't find ride heights to run with Hoosier tires so I was wondering if anyone who's ran a bms with Hoosiers tires got any information on where to to set ride heights
  • modcrewchief
    Junior Member
    • Nov 2013
    • 17

    #2
    Call joel at close racing he will help u

    Comment

    • racincowboy3
      Member
      • Nov 2013
      • 32

      #3
      We got the info from BMS with our 06 car for 6 inch on both fronts and 2 3/4 on the rr

      Comment

      • Deish98
        Senior Member
        • Jan 2012
        • 238

        #4
        That's what I got too I'm trying to figure out what they prefer for the LR

        Comment

        • Deish98
          Senior Member
          • Jan 2012
          • 238

          #5
          We run Hoosiers which set the car ride heights so we set the front at 7 on both sides and left the right rear 2 3/4 and we adjusted the left side to 3/4 taller then the right side and it was bout 25 left rear bite without driver and 47 left rear bite with driver... I was also wondering if anyone know how long the chain is suppose to be. Bms tells us 19 inches but 19 inches has way too much slack in it wear it can get caught on something

          Comment

          • Deish98
            Senior Member
            • Jan 2012
            • 238

            #6
            I wrapped it up with 3 layers of duct tape and it still has a lot of slack where it can touch the spring a little bit when it's not hiked

            Comment

            • langdonracing48
              Senior Member
              • Dec 2013
              • 183

              #7
              That's fine. It won't hurt anything

              Comment

              • CHRISTINE
                Senior Member
                • Sep 2008
                • 341

                #8
                Chain drop

                I run 18-1/4-18-1/2 in mine what will 19 do for the car?

                Comment

                • drtrkr244
                  Banned
                  • Dec 2007
                  • 1024

                  #9
                  Generally, looser on exit. The lr moves forward, increasing roll oversteer.

                  Comment

                  • CHRISTINE
                    Senior Member
                    • Sep 2008
                    • 341

                    #10
                    Chain drop

                    With 18-1/4" my ltb is at 48* if i add another 3/4" to the drop should i drop the bar down a hole on frame to stay close to the 46* that everyone recomends or let it be around 52*?

                    Comment

                    • Anonymous24
                      Senior Member
                      • Jan 2014
                      • 253

                      #11
                      Steering geometry and chassis roll are more about drivability. Steering geometry and chassis roll should be calculated first. Once configured, the moment centers and center of mass height needs to be designed around the geometry and roll. Remember weight transfer during cornering is not what we are looking for. The weight transfer we are looking to obtain is more front to rear for forward drive and corner entry. Obtaining that transfer is dependent upon center of mass movement on exit and entey
                      Find me on Facebook: Impetus Dirt Racing Technologies

                      Comment

                      • CHRISTINE
                        Senior Member
                        • Sep 2008
                        • 341

                        #12
                        Chain drop

                        Thanks Jeff for speaking english to me lol. Hows that grt?

                        Comment

                        • Anonymous24
                          Senior Member
                          • Jan 2014
                          • 253

                          #13
                          Hate to say it but I agree with stock car driver about watching the LR for frame contact. I have also come across BMS chassis's having some rear wheel hop
                          Find me on Facebook: Impetus Dirt Racing Technologies

                          Comment

                          • CHRISTINE
                            Senior Member
                            • Sep 2008
                            • 341

                            #14
                            Chain drop

                            I will do. Thanks My car is good now just searching if you know what i mean i got 4 feature wins and 10 heats i think just searching.

                            Comment

                            • Anonymous24
                              Senior Member
                              • Jan 2014
                              • 253

                              #15
                              stock car driver you contacted me on facebook and I blocked you. i sent you pm asking for you to stop with the nonsense, but i guess some people never learn. as for a competitive car, you obviously have no idea who i am and who i work with.
                              Find me on Facebook: Impetus Dirt Racing Technologies

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