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Coilover kit with Bilsteins or Full Ground control setup?

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    Coilover kit with Bilsteins or Full Ground control setup?

    So i wanna drop my car because with the wheels i put on in my car look retarded with it being so high.

    any recomendations? i did a little bit of research and how late model e30's rear looks lower than the front so i was thinking of going with ground control coilover kit with my bilstein hd shocks.

    or should i just wait and save up for the complete ground control coilover suspension kit?

    the only picture i have with wheels are on my sig
    58
    coilovers with bilsten shocks
    44.83%
    26
    complete ground control coilover suspension
    55.17%
    32
    Originally posted by blunttech
    r3v does not fuck around. First you get banned, then they shoot you

    #2
    You don't need the full setup, but get the coilover kit, single adjustable KONI shocks and some rear shock mounts.

    Comment


      #3
      Bilstein HD's are no bueno for GC kit if you plan on going low.
      I think you can get them re-valved by Bilstein though

      1991 325iS turbo

      Comment


        #4
        whats wrong with hd's for going low?
        Originally posted by blunttech
        r3v does not fuck around. First you get banned, then they shoot you

        Comment


          #5
          Hds are meant for stock height springs, they will bottom excessively when you lower your car. Bilstein sports are meant for lowered cars but some people running coilovers are still having issues with them bottoming out.

          Comment


            #6
            Originally posted by LivingLegend06 View Post
            Hds are meant for stock height springs, they will bottom excessively when you lower your car. Bilstein sports are meant for lowered cars but some people running coilovers are still having issues with them bottoming out.
            I have Bilsteins Sports and I am wondering if that is what is happening to me.

            I have 2" of clearance for my skidplate and it has impacted about 6 times already.

            So I would need a different shock or would stiffer spring be the solution?


            My 1989 e30 s52 Touring... this is Betty

            My 1989 325i vert (sold)...this is Nina

            My 1991 M5 (sold)... this is Veronica

            Photo comparison: OEM vs aftermarket windscreen for a convertible

            Comment


              #7
              I run Bilstein Sports and 350/475 Eibach ERS Springs with the GC conversion kit and the car rides awesome.

              I was shocked (no pun intended) with how much better it rode on the GC conversion kit with stiffer springs and lower, than it did with the same shocks and Eibach Pro-Kit springs.

              I also don't bottom out.
              E30- 1989 325is

              Comment


                #8
                The lower you go the stiffer your rates need to be, and shocks to match. Depending on how low you go you may need the shocks and/or struts modified .
                Mtech1 v8 build thread - https://www.r3vlimited.com/board/sho...d.php?t=413205



                OEM v8 manual chip or dme - https://www.r3vlimited.com/board/sho....php?p=4938827

                Comment


                  #9
                  Originally posted by MC Hammered View Post
                  I have Bilsteins Sports and I am wondering if that is what is happening to me.

                  I have 2" of clearance for my skidplate and it has impacted about 6 times already.

                  So I would need a different shock or would stiffer spring be the solution?
                  Both and/or depending how low you want to go.

                  1991 325iS turbo

                  Comment


                    #10
                    Well all of the bottoming out happened the first day after I adjusted the ride height. Dropped the front 1" and the rear 1/2", for reference I am almost at the bottom of the Ground Control adjustment sleeve on the fronts.

                    I have driven more carefully to determine what is going on but I haven't bottomed out since, so would the suspension possibly have settled down now that I have driven on it a bit?

                    I have 440lb springs up front.


                    My 1989 e30 s52 Touring... this is Betty

                    My 1989 325i vert (sold)...this is Nina

                    My 1991 M5 (sold)... this is Veronica

                    Photo comparison: OEM vs aftermarket windscreen for a convertible

                    Comment


                      #11
                      Bottoming out the shock and slamming your skidplate into the ground are two different things. With 2" of clearance, nothign is going to stop you from grounding the skidplate, but stiffer springs would help.
                      2006 GMC Sierra 2500HD 4WD LBZ/Allison
                      2002 BMW M3 Alpinweiß/Black
                      1999 323i GTS2 Alpinweiß
                      1995 M3 Dakargelb/Black
                      - S50B32/S6S420G/3.91
                      1990 325is Brilliantrot/Tan
                      1989 M3 Alpinweiß/Black

                      Hers: 1996 Porsche 911 Turbo Black/Black
                      Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd

                      sigpic

                      Comment


                        #12
                        Originally posted by Hodge View Post
                        I run Bilstein Sports and 350/475 Eibach ERS Springs with the GC conversion kit and the car rides awesome.

                        I was shocked (no pun intended) with how much better it rode on the GC conversion kit with stiffer springs and lower, than it did with the same shocks and Eibach Pro-Kit springs.

                        I also don't bottom out.
                        those are the springs that come with the bilstein GC coilover conversion kit correct?
                        Originally posted by blunttech
                        r3v does not fuck around. First you get banned, then they shoot you

                        Comment


                          #13
                          ^ they come with whatever rate you choose, call GC .
                          Mtech1 v8 build thread - https://www.r3vlimited.com/board/sho...d.php?t=413205



                          OEM v8 manual chip or dme - https://www.r3vlimited.com/board/sho....php?p=4938827

                          Comment


                            #14
                            Originally posted by Jean View Post
                            ^ they come with whatever rate you choose, call GC .
                            what rates would you recommend? i want to drop the front 1.5 and .75 in the back
                            Originally posted by blunttech
                            r3v does not fuck around. First you get banned, then they shoot you

                            Comment


                              #15
                              Contact GC, tell me what you are trying to accomplish and they will help you pick the rates. It depends on many factors, you goals with the car, the shocks you choose etc.
                              Mtech1 v8 build thread - https://www.r3vlimited.com/board/sho...d.php?t=413205



                              OEM v8 manual chip or dme - https://www.r3vlimited.com/board/sho....php?p=4938827

                              Comment

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