Trailing arm reinforcements

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  • Mike B.
    E30 Modder
    • Jan 2006
    • 987

    #16
    Originally posted by Tom944

    Since we've gone completely OT on this one, and I'm primarily to blame ;)

    Is that a temp sensor mounted in your diff cover?

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    • cheades
      Mod Crazy
      • Oct 2003
      • 632

      #17
      What is the general thinking here for the optimal rear camber for a track car?

      Comment

      • Mike B.
        E30 Modder
        • Jan 2006
        • 987

        #18
        There is no optimal number for camber as there are so many variables that come into play. The only way to get it spot on is to run the car, read the tires with a pyrometer and compare lap times.

        That being said, -1 to -2 in the rear for you average track day should be fine.

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        • One21Two
          Mod Crazy
          • Aug 2007
          • 711

          #19
          Originally posted by Mike B.
          Since I already had 2-pc poly bushings installed, I was just able to lower the whole subframe as a unit on a jack and pop the new aluminum ones in place. Compared to the task of replacing stock subframe and trailing arm bushing, it was really quite easy.
          I guess I did it the hard way. I swapped the whole subframe and dropped the diff.

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          • etxxz
            R3VLimited
            • Feb 2006
            • 2085

            #20
            my rear camber SUCKS....got kmac bushings (came with car) and they suck. i adj them when i did my IE subframe bushings and it took 1 track event to mess the camber/toe up...did i mention this situation sucks?! i'm looking more into this solution. thanks for posting

            -etxx
            No more e30s for me.
            88 black BMW OBDII 332is dedicated track [sold]
            88 BMW OBDII bronzit 332is [RIP 03/08]
            91 BMW 325i [sold]
            86 Corolla 'Ae86' HB 20v trd [sold]
            http://youtube.com/watch?v=pTj7Hn9v5Rs

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            • Tom944
              Advanced Member
              • Dec 2005
              • 150

              #21
              Originally posted by Mike B.
              Since we've gone completely OT on this one, and I'm primarily to blame

              Is that a temp sensor mounted in your diff cover?
              Yes it is, but it's not hooked up yet. Planning on doing that in a few weeks.

              The camber in the rear is just over -2.0, and the pyrometer showed nice temperatures over the whole width of the tire. Fact is that this was "a bit of luck", as the rear isn't adjustable. Offcourse we chose the shortend bushings for a reason but the real outcome in % camber wasn't really known in advance.
              E30 Euro-S50B30 Tracktoy
              E30 M20B25 Drifttoy

              Comment

              • funcrew
                E30 Fanatic
                • Jun 2007
                • 1223

                #22
                Originally posted by Mike B.
                Since I already had 2-pc poly bushings installed
                These are the bushings from Muzzi Motorsports?



                Replacing the OEM bushings is always described as a horror - is installing the Muzzi bushings for the first time any easier?
                Last edited by funcrew; 02-24-2008, 09:59 PM.
                "If the sky were to fall tomorrow, the tall would die first."

                -Dr. Paul Forrester



                Do I LOOK like I need a psychological evaluation???

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                • Mike B.
                  E30 Modder
                  • Jan 2006
                  • 987

                  #23
                  Yes, those are the ones.

                  The installation won't be any easier if you are removing the stock bushings for the first time.

                  Comment

                  • grib
                    Advanced Member
                    • Oct 2006
                    • 151

                    #24
                    Originally posted by funcrew
                    Replacing the OEM bushings is always described as a horror - is installing the Muzzi bushings for the first time any easier?
                    It's a lot of wrenching either way - but the PITA is removing the original rubber bushings which are pressed in. Actually "installing" a 2-piece urethane bushing is just a matter of greasing it and tapping them in.

                    1987 325i Cabrio - SOLD
                    2014 Chevy Volt
                    2007 FJ Cruiser

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