Load numbers

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  • ZERO25
    Senior Member
    • Aug 2018
    • 5240

    #1

    Load numbers

    How many pounds do you have to change for the driver to be able to tell a difference?

    The car is a '15 bg Rocket.
  • Jking24
    Senior Member
    • Oct 2017
    • 1519

    #2
    Depends witch corner. Rr 25-50 pounds is a noticeable fine adjustment

    Comment

    • MasterSbilt_Racer
      Senior Member
      • May 2007
      • 14324

      #3
      Which corner and at what travel? But I agree, 50# anywhere, at any time, will be noticeable.
      Modern Day Spec Wedge Racing

      Comment

      • Jking24
        Senior Member
        • Oct 2017
        • 1519

        #4
        Originally posted by MasterSbilt_Racer View Post
        Which corner and at what travel? But I agree, 50# anywhere, at any time, will be noticeable.
        Yes travel is why i used the rr as the example because that number is a relative change at any point in travel or ride height. Since the rr has limited travel and is so sensitive in general

        Comment

        • billetbirdcage
          Senior Member
          • May 2007
          • 2020

          #5
          If I had to give an average amount most people could feel, I would go in the 5% range. 5% of what ever number your thinking about altering, whether it's ride load on RR or dynamic load on the RF or anything in between. Just take the number your looking to change at that position (ride to full travel - anything from 300# to 2400# and x by .05) and that's what I would call towards the minimum change

          Comment

          • ZERO25
            Senior Member
            • Aug 2018
            • 5240

            #6
            Quick rundown.......we sold EVERYTHING a few years ago and decided to race again in the 602 class.We bought a nice roller Longhorn only to find later it had a bent clip. We then purchased a 15 bg Rocket race ready. We dont own a smasher(yet), so we let our local Rocket guru smash the springs for us.

            His cars usually are very good, but ours is awfully tight. This week he said he took out 100 lbs outa the rr and it was quite a bit better but still not there yet.We have spent evry race, 3 now, trying to get it free enough.

            1) We are having to run 40 points more gear than everyone else, im assuming because were too tight? (3 race old Hendren setup on his dyno)

            2)Were quite a bit softer on the rf than rocket recommends, so the nose is really sealed off good.

            3) You CANNOT race these days without a spring smasher on hand (thats the next purchase)!

            Comment

            • MasterSbilt_Racer
              Senior Member
              • May 2007
              • 14324

              #7
              Originally posted by ZERO25 View Post
              Quick rundown.......we sold EVERYTHING a few years ago and decided to race again in the 602 class.We bought a nice roller Longhorn only to find later it had a bent clip. We then purchased a 15 bg Rocket race ready. We dont own a smasher(yet), so we let our local Rocket guru smash the springs for us.

              His cars usually are very good, but ours is awfully tight. This week he said he took out 100 lbs outa the rr and it was quite a bit better but still not there yet.We have spent evry race, 3 now, trying to get it free enough.

              1) We are having to run 40 points more gear than everyone else, im assuming because were too tight? (3 race old Hendren setup on his dyno)

              2)Were quite a bit softer on the rf than rocket recommends, so the nose is really sealed off good.

              3) You CANNOT race these days without a spring smasher on hand (thats the next purchase)!
              You can race without the smasher, but it's a lot harder to take advice from people and it limits what you can do a little bit. Some combos of components don't have good published curves or behave how you would expect.
              Modern Day Spec Wedge Racing

              Comment

              • ZERO25
                Senior Member
                • Aug 2018
                • 5240

                #8
                Originally posted by MasterSbilt_Racer View Post
                You can race without the smasher, but it's a lot harder to take advice from people and it limits what you can do a little bit. Some combos of components don't have good published curves or behave how you would expect.

                Yep, im not one to take somebody's word for it so hopefully very soon we'll have a smasher. I know he's trying to help and really doesn't want to give up all his secrets, and i can appreciate that. He's got us in the ballpark so we'll just have to tweak on his numbers a bit!

                .......note to self... you dont realize everything it takes to have at the shop and in the trailer, until you need it! lol

                Comment

                • ZERO25
                  Senior Member
                  • Aug 2018
                  • 5240

                  #9
                  Do you guys change your load numbers throughout the night, or is my guy searching too much?

                  Comment

                  • Punisher88
                    Senior Member
                    • Nov 2014
                    • 495

                    #10
                    You can race very easily without a smasher if you are running a 602 package that limits you to one spring for corner.

                    Comment

                    • ZERO25
                      Senior Member
                      • Aug 2018
                      • 5240

                      #11
                      Originally posted by Punisher88 View Post
                      You can race very easily without a smasher if you are running a 602 package that limits you to one spring for corner.
                      We do run a bump on the rf.

                      Comment

                      • Jking24
                        Senior Member
                        • Oct 2017
                        • 1519

                        #12
                        Originally posted by ZERO25 View Post
                        Do you guys change your load numbers throughout the night, or is my guy searching too much?
                        Yes we change our numbers. And no you don't need a smasher to make general adjustments. All you need is a tape measure abs basic math. If your shocks move a1/8" per turn than you divide your spring rate by 8 and that is what one turn will do to your numbers. Obviously stacks and bumps complicate things and theirs much more to it but that is the basics. But if your close a turn here and their may be all you need

                        Comment

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