Any way to drop weight from an e30 convertible?

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  • ali123
    Member
    • May 2014
    • 54

    #1

    Any way to drop weight from an e30 convertible?

    Hey guys I'm looking for a nimble 4 seater convertible for the summer and was checking out e30's. It sucks that they have an 300 extra pounds added to them. I was wondering if there are mods you can do to the soft top mechanism to drop some extra weight? I'd like to keep it under 3000 pounds if possible.

    Thanks
  • LJ851
    R3V OG
    • Nov 2010
    • 7918

    #2
    It's already below 3000 lbs.
    Lorin


    Originally posted by slammin.e28
    The M30 is God's engine.

    Comment

    • BenDem
      Member
      • Mar 2014
      • 75

      #3
      Most of that weight comes from frame reinforcements to try to keep the chassis relatively stiff (ha!). I think you'd have to do something silly like lose all the sound deadening, interior bits, etc. It might be a bit lighter, but it won't be pleasant.

      FWIW, When I got my vert I already accepted that it would never be as light, nimble or stiff as a hardtop. That's not really the point of a convertible.

      Comment

      • nando
        Moderator
        • Nov 2003
        • 34827

        #4
        Is it really 300 lbs? I'd guess more like 150-200.
        Build thread

        Bimmerlabs

        Comment

        • ali123
          Member
          • May 2014
          • 54

          #5
          Mm I read 300 I guess the guy was exaggerating. Seems like it' more like 200lb's




          Edit: actually for the 318i the diff is 250+ lbs. I'm looking for the 325i though.

          Comment

          • e30rapidic
            R3VLimited
            • Oct 2003
            • 2167

            #6
            Originally posted by LJ851
            It's already below 3000 lbs.
            Not entirely true, depends on year....

            3015 lbs - 1987
            3055 lbs - 1988-1990
            2988 lbs - 1991+

            You can remove the balancer, a 70 pound weight in the right hand corner, behind the rear wheel. Some had tar on the inside of the trunk as well, my '87 cabrio did not.
            '87 325ic, powered by S50.

            Comment

            • BenDem
              Member
              • Mar 2014
              • 75

              #7
              If it makes you feel any better, it's got about the same curb weight as a Boxster or a z4.

              I think it's about as light as a 4 seater convertible that you'll find.

              Comment

              • LJ851
                R3V OG
                • Nov 2010
                • 7918

                #8
                There is a 60+ lb chunk of steel bolted to the right rear corner of the trunk. Remove it.


                Edit. E30rapidic beat me to it.
                Lorin


                Originally posted by slammin.e28
                The M30 is God's engine.

                Comment

                • decay
                  R3V Elite
                  • Oct 2003
                  • 5637

                  #9
                  that trunk weight is 45lbs, not 60-70.

                  other easy stuff- lightweight battery, corbeau front seats.
                  past:
                  1989 325is (learner shitbox)
                  1986 325e (turbo dorito)
                  1991 318ic (5-lug ITB)
                  1985 323i baur
                  current:
                  1995 M3 (suspension, 17x9/255-40, borla)

                  Comment

                  • BenDem
                    Member
                    • Mar 2014
                    • 75

                    #10
                    Isn't that chunk of steel there for a reason? Why would BMW put it there in the first place if it wasn't needed?

                    Not saying it's a bad idea, necessarily. I know it's there to balance out the weight of the battery being moved to the engine compartment... so it's a handling thing, right?

                    Comment

                    • wilholl
                      E30 Addict
                      • May 2012
                      • 518

                      #11
                      Originally posted by BenDem
                      Isn't that chunk of steel there for a reason? Why would BMW put it there in the first place if it wasn't needed?

                      Not saying it's a bad idea, necessarily. I know it's there to balance out the weight of the battery being moved to the engine compartment... so it's a handling thing, right?
                      thought it was to help with cowl shake. But I am not sure.
                      1988 325 non-letter Seta "Bronzit"
                      1991 325ic "Laguna Green" (Sold)
                      1993 325i "Laguna Green/Silver" (Sold)
                      1998 528i "Artic Silver" m-sport(totalled by drunk driver)
                      2000 528i Titansilber/gray m-sport
                      2000 528i Titansilber/black m-sport(sold)
                      2001 525i Anthracite m-sport(sold)
                      2013 750i Black/Black m-sport "Beast"

                      Comment

                      • e30vert
                        E30 Mastermind
                        • Jan 2005
                        • 1789

                        #12
                        Front to rear balancing.

                        Comment

                        • ali123
                          Member
                          • May 2014
                          • 54

                          #13
                          Does the car feel light and nimble? I'm coming from a 90 Miata lol.

                          Thanks

                          Comment

                          • wilholl
                            E30 Addict
                            • May 2012
                            • 518

                            #14
                            Originally posted by wilholl
                            thought it was to help with cowl shake. But I am not sure.




                            Photo 01 Vibration damper 1 51711942238

                            This is what I remembered from real oem
                            Vibration Damper to help control cowl shake issues with verts
                            1988 325 non-letter Seta "Bronzit"
                            1991 325ic "Laguna Green" (Sold)
                            1993 325i "Laguna Green/Silver" (Sold)
                            1998 528i "Artic Silver" m-sport(totalled by drunk driver)
                            2000 528i Titansilber/gray m-sport
                            2000 528i Titansilber/black m-sport(sold)
                            2001 525i Anthracite m-sport(sold)
                            2013 750i Black/Black m-sport "Beast"

                            Comment

                            • LJ851
                              R3V OG
                              • Nov 2010
                              • 7918

                              #15
                              Originally posted by ali123
                              Does the car feel light and nimble? I'm coming from a 90 Miata lol.

                              Thanks


                              Ask your boyfriend.
                              Lorin


                              Originally posted by slammin.e28
                              The M30 is God's engine.

                              Comment

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