1. Cope

    Cope Fusing with fire

    Messages:
    2,840
    Likes Received:
    2588
    Joined:
    Oct 20, 2009
    Location:
    San Jose, Ca.
    Local Time:
    1:42 PM
    Just about ready to finish the 9" install.

    Got a few questions.

    Pinion angle. This is a street strip car running 4.88 rear, drag radials and 02 03 SS springs. More street than strip tho.
    Should I go full 6/7 degrees negative or should I tame it down to more like -5?

    With my spring sliders, should I set them centered in the travel or a little more to the rear? Some folks say center some say more to the rear... what do you think and why?

    Now the fun stuff, pics!

    35 spline axles from strange.

    20181113_113551_zpsmvssc1rx.jpg

    Heres the rear mocked up, OH Yeah! When the car went up on the lift it was 4 wheel drum with SPB, she rolling out BBP and 4 wheel disk. Once I get the pinion angle set, i will weld the perches and rebuild the back brace.

    20181114_112030_zpsd96ii7d4.jpg

    Notched the frame, boxed it in and moved the front hangars. I cant remember the member who I stole this idea from but hes in Hawaii and was very helpful. You know who you are and thank you!

    20181114_151915_zpsn5myddfh.jpg

    20181114_151915_zpsn5myddfh.jpg

    20181114_153047_zpsqshqqnip.jpg

    Thanks for all the help, I'm getting super excited to pull her out of the shop and lay some rubber down!
     
    • Like Like x 7
    • rustycowll69

      rustycowll69 Well-Known Member

      Messages:
      1,757
      Likes Received:
      682
      Joined:
      Feb 19, 2016
      Location:
      Pacific northwest
      Local Time:
      11:42 AM
      beautiful welding on that frame. I wish I could do welds like that. If you did the welding, you should be very proud. You're very talented.
       
      • Agree Agree x 4
      • Thanks! Thanks! x 1
      • Cope

        Cope Fusing with fire

        Messages:
        2,840
        Likes Received:
        2588
        Joined:
        Oct 20, 2009
        Location:
        San Jose, Ca.
        Local Time:
        1:42 PM
        Thank you. The first inch is kinda shaky but after that it does make me happy.

        I burn a lot of welding wire and got more burns in more places than you want to know..

        :lol:
         
        • Like Like x 1
        • j par

          j par Well-hung Member

          Messages:
          12,853
          Likes Received:
          5603
          Joined:
          Jul 2, 2014
          Location:
          Portland Oregon
          Local Time:
          11:42 AM
          That really looks good!:thumbsup:
           
          • Agree Agree x 2
          • Thanks! Thanks! x 1
          • Bodyperson

            Bodyperson A little sketchy

            Messages:
            2,232
            Likes Received:
            2069
            Joined:
            Nov 26, 2015
            Location:
            NW MONTANA
            Local Time:
            12:42 PM
            I really like that idea. I might just re-do mine like that as I have not set-up my rear yet. I might make my own adjustable bracket though. Nice work.
            Why are you re-doing the brace?
             
            • Thanks! Thanks! x 1
            • Bodyperson

              Bodyperson A little sketchy

              Messages:
              2,232
              Likes Received:
              2069
              Joined:
              Nov 26, 2015
              Location:
              NW MONTANA
              Local Time:
              12:42 PM
              Oh I see. You already cut it. Just need to finish it off. :thumbsup:
               
            • brian6pac

              brian6pac Well-Known Member

              Messages:
              3,486
              Likes Received:
              1992
              Joined:
              Nov 15, 2016
              Location:
              N.E.Ohio
              Local Time:
              2:42 PM
              pinion angle

              Driveshaft info Mark Williams.jpg
               
              • Thanks! Thanks! x 1
              • Brad4406

                Brad4406 FABO Gold Member FABO Gold Member

                Messages:
                2,018
                Likes Received:
                234
                Joined:
                Apr 20, 2008
                Location:
                Lebanon, OH
                Local Time:
                2:42 PM
                I would wait to set opinion angle until I had it everything installed with the wheels on ground and suspension loaded as the Mopar Chasis Guide suggests, but that's just me. I believe it shows -3 to -5 degrees combined for your application. Combined is probably not the right term, but adding the pinion angle to the driveshaft angle.

                Well, never mind, brian6pac posted the procedure while I was typing my reply. Thank you brian6pac as I'm on my cell and didn't have access to the procedure.
                 
              • Cudafever

                Cudafever Well-Known Member

                Messages:
                2,645
                Likes Received:
                403
                Joined:
                Sep 27, 2009
                Local Time:
                12:42 PM
                I think SS Springs recommend 5-7 degrees
                With my shot SS Spring.... that were at 0 degrees, i think i will shoot more towards 7 degrees.

                I have been told that the best u-joint life is no less than 2-1/2 degrees and average is 3-1/2 Degrees.

                As far as your slider, i seen a video, on one of these thread, that show just how much the slider moved forward under launch.
                From what i saw in that video, i would say more to the back then center of the slider.
                 
                • Thanks! Thanks! x 1
                • Cope

                  Cope Fusing with fire

                  Messages:
                  2,840
                  Likes Received:
                  2588
                  Joined:
                  Oct 20, 2009
                  Location:
                  San Jose, Ca.
                  Local Time:
                  1:42 PM
                  Thanks.

                  I figured out the cut on the frame by lowering the car down over the assembled rear. Centered the tire in the wheel house, scribed the location of the front hangar then started cutting.

                  Full weight will be on the springs before I decide where to locate the sliders.
                   
                • Cudafever

                  Cudafever Well-Known Member

                  Messages:
                  2,645
                  Likes Received:
                  403
                  Joined:
                  Sep 27, 2009
                  Local Time:
                  12:42 PM
                  Last edited: Nov 14, 2018
                • Cope

                  Cope Fusing with fire

                  Messages:
                  2,840
                  Likes Received:
                  2588
                  Joined:
                  Oct 20, 2009
                  Location:
                  San Jose, Ca.
                  Local Time:
                  1:42 PM
                  Where it is wont lower it any. It just puts the front spring eye on the same plane as it was before.

                  What does lower it is replacing the rear shackle with a slider. That should lower it about 2" as there is no shackle height.

                  It should be noted that I have a full 12 point roll cage and frame connectors, so removing the material from the frame in my opinion isn't a big deal.
                   
                • Cope

                  Cope Fusing with fire

                  Messages:
                  2,840
                  Likes Received:
                  2588
                  Joined:
                  Oct 20, 2009
                  Location:
                  San Jose, Ca.
                  Local Time:
                  1:42 PM
                  With out the notch it would have raised the rear almost 6 inches.

                  So if you just weld the hangar to the rails you best make it a 4x4 or a solid front axle gaser.

                  :rofl:
                   
                • famous bob

                  famous bob mopar misfit

                  Messages:
                  11,808
                  Likes Received:
                  3069
                  Joined:
                  Aug 14, 2011
                  Location:
                  okla
                  Local Time:
                  1:42 PM
                  I don`t know how much h.p. ur going to have , but myself, I`m giving up on drag radials. They remind me of m-h slicks , back in the day, don`t have enough initial bite for my car.
                  GRANTED, THERE ARE SOME DANG FAST CARS RUNNING THEM, BUT THEY ARE SCIENCED OUT AND MOST HAVE NEAR EXOTIC REAR SUSPENSIONS. (DAM CAPS !)
                  The cal tracs don't seem to work on mopars short front springs as well as the xxbrands longer springs. ????
                   
                • Cudafever

                  Cudafever Well-Known Member

                  Messages:
                  2,645
                  Likes Received:
                  403
                  Joined:
                  Sep 27, 2009
                  Local Time:
                  12:42 PM
                  Personally i think that part of the frame is 10X as strong as it was before. With or without frame connectors and roll cage.
                  Agreed. if you would have just welled it to the existing frame rail you would have need to put a solid front axle in it:poke::D
                   
                  • Agree Agree x 1
                  • brian6pac

                    brian6pac Well-Known Member

                    Messages:
                    3,486
                    Likes Received:
                    1992
                    Joined:
                    Nov 15, 2016
                    Location:
                    N.E.Ohio
                    Local Time:
                    2:42 PM
                    What I have done in the past was, after you are finished have someone lay on the ground next to the car and look at the pinion while you break torque it and see how much the pinion moves,
                    SS springs don't wrap up as much so 5-7 * might be to much. I have had to adjust with a tapered shim on my Cuda and I think it was a 2* shim.
                     
                  • ocdart

                    ocdart Inland Mopars Car Club FABO Gold Member

                    Messages:
                    9,108
                    Likes Received:
                    1450
                    Joined:
                    Nov 5, 2006
                    Location:
                    North OC, SoCal
                    Local Time:
                    11:42 AM
                    Here's a link to a video that should convince you to center the travel more to the rear. Watch the spring action and shackle movement throughout both the burnout and especially the launch and run.



                     
                    • Like Like x 2
                    • Cope

                      Cope Fusing with fire

                      Messages:
                      2,840
                      Likes Received:
                      2588
                      Joined:
                      Oct 20, 2009
                      Location:
                      San Jose, Ca.
                      Local Time:
                      1:42 PM
                      Man, what a PITA... got the calipers on, had to clearance em to fit inside the wheel.

                      The aluminum bushing on the spring slider didn't fit in the rear spring eye, so spent some time on the lathe making those fit...

                      Got everything mocked up and pretty sure the springs are on the wrong side so took it all back apart and swapped those side to side...

                      Battery cable was in the way so rerouted that...

                      Hopefully tomorrow I can just mock it all back up, locate the sliders, make some plates and weld the sliders on and be done with this....

                      Then I still need to try and find a conversion u joint, a brake line, make new hard lines, decide on a pinion angle, remount the cage for the fuel cell, move the fuel filter and pump, bend new hard lines for the fuel and more that I'm sure I'm forgetting... Ugh...


                      oh yeah do a big smoky burnout and launch the car in the parking lot!
                       
                    • Cope

                      Cope Fusing with fire

                      Messages:
                      2,840
                      Likes Received:
                      2588
                      Joined:
                      Oct 20, 2009
                      Location:
                      San Jose, Ca.
                      Local Time:
                      1:42 PM
                      Axle is in! Pinion angle is -6 at ride height. Sliders are 2/3rds to the rear. Axle is moved back 1.5" from factory location. Fuel cell cage and cell are in. Fuel pump and filter no longer fit so gotta do something about that, return line is on.

                      I'm so close I can taste the burnt rubber!

                      Just gotta figure out drive shaft, brake lines and hook up a few wires and AWAY WE GO!!

                      20181117_152414_zpsvyqhe98g.jpg

                      20181117_152432_zpslbu012ar.jpg

                      Thanks again for all the help and advice!
                      :steering::thankyou:
                       
                      • Like Like x 4
                      • Cope

                        Cope Fusing with fire

                        Messages:
                        2,840
                        Likes Received:
                        2588
                        Joined:
                        Oct 20, 2009
                        Location:
                        San Jose, Ca.
                        Local Time:
                        1:42 PM
                        Sooo close now.

                        Just gotta hook up the battery, bleed brakes, fill dif, check trans and tighten a few bolts!!

                        Ended up getting a new drive shaft made, solid 1350 u joints and 3.5 inch tube.
                         
                      • Cope

                        Cope Fusing with fire

                        Messages:
                        2,840
                        Likes Received:
                        2588
                        Joined:
                        Oct 20, 2009
                        Location:
                        San Jose, Ca.
                        Local Time:
                        1:42 PM
                        20181121_152711_zpswtqdr6jy.jpg

                        New shaft.

                        20181121_152702_zpshmblnxws.jpg

                        Breaks all plumbed up

                        20181121_153154_zpsl868r5fh.jpg

                        Interior all back in, still gotta do some more painting but it's almost all done!

                        20181121_153154_zpsl868r5fh.jpg
                         
                      • fishmens67

                        fishmens67 Well-Known Member

                        Messages:
                        5,415
                        Likes Received:
                        2212
                        Joined:
                        Nov 10, 2012
                        Location:
                        idaho
                        Local Time:
                        1:42 PM
                        what's with the dinky exhaust ?
                         
                      • Cope

                        Cope Fusing with fire

                        Messages:
                        2,840
                        Likes Received:
                        2588
                        Joined:
                        Oct 20, 2009
                        Location:
                        San Jose, Ca.
                        Local Time:
                        1:42 PM
                        Its 2.5 inch. I put it in the car a long time ago. Its probably time to go 3" tho..
                         
                        • Like Like x 1
                        • Matts440

                          Matts440 FABO Gold Member FABO Gold Member

                          Messages:
                          1,895
                          Likes Received:
                          749
                          Joined:
                          Apr 11, 2014
                          Location:
                          Riverside, CA
                          Local Time:
                          1:42 PM
                          Looks great, awesome job as always.
                           
                          • Thanks! Thanks! x 1
                          • fishmens67

                            fishmens67 Well-Known Member

                            Messages:
                            5,415
                            Likes Received:
                            2212
                            Joined:
                            Nov 10, 2012
                            Location:
                            idaho
                            Local Time:
                            1:42 PM
                            Time to let it breath. I don't know if I told you, but you do mighty fine work. I'm liking your idea of a street car.
                             
                            • Thanks! Thanks! x 1
                            1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
                              By continuing to use this site, you are consenting to our use of cookies.