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    Spring Rates?

    I have a question regarding what spring rates to specify with my GC coilover kit. I'm getting the eibach ers springs and koni sa dampers with the kit.

    http://www.ground-control-store.com/...hp/II=686/CA=8

    My car will be a DD in the winter and a DE/AutoX car in the spring/summer. also, this is NJ (pot hole heaven). I can put up with a fairly stiff ride but still want it to be drivable on these roads. I called GC and they recommend a 450/700 setup but i'm thinking 450/650 with stock sways and koni SA.

    any comments?
    '12 F30 328i Sport Line
    '91 SpecE30 #523
    '00 Ford F-350 Dually Tow Vehicle

    BMWCCA #360858 NASA #
    128290


    #2
    Do you have fillings in your teeth? You wont for lonh with those rates on rough roads.

    I have 650/650 right now on my car, but I rarely drive it on the street. Its not that pleasant of an experience when I do.
    Current Cars
    2014 M235i
    2009 R56 Cooper S
    1998 M3
    1997 M3

    Comment


      #3
      Originally posted by DaveCN View Post
      Do you have fillings in your teeth? You wont for lonh with those rates on rough roads.

      I have 650/650 right now on my car, but I rarely drive it on the street. Its not that pleasant of an experience when I do.
      no fillings.. i brushed my teeth regularly when i was a kid and didnt eat too much candy... :p

      what kind of suspension setup do you have?
      '12 F30 328i Sport Line
      '91 SpecE30 #523
      '00 Ford F-350 Dually Tow Vehicle

      BMWCCA #360858 NASA #
      128290

      Comment


        #4
        Originally posted by DaveCN View Post
        Do you have fillings in your teeth? You wont for lonh with those rates on rough roads.

        I have 650/650 right now on my car, but I rarely drive it on the street. Its not that pleasant of an experience when I do.
        You have the same spring rates front and rear?
        How does it handle? I'd imagine it would plow like crazy.

        -Erik

        Comment


          #5
          I have 1250F 1535R

          IT isn't too bad

          Comment


            #6
            Originally posted by trent View Post
            I have 1250F 1535R

            IT isn't too bad
            wow.. those are high spring rates.. is it a dedicated track car? what dampers?
            '12 F30 328i Sport Line
            '91 SpecE30 #523
            '00 Ford F-350 Dually Tow Vehicle

            BMWCCA #360858 NASA #
            128290

            Comment


              #7
              Originally posted by erik325i View Post
              You have the same spring rates front and rear?
              How does it handle? I'd imagine it would plow like crazy.

              -Erik
              Actually handles pretty well. No real plowing problem. Long stiry as to why it is at those rates currently - the fronts are getting swapped soon.

              Originally posted by kishg View Post
              no fillings.. i brushed my teeth regularly when i was a kid and didnt eat too much candy... :p

              what kind of suspension setup do you have?
              GC


              Trent, Tee-Hee!
              Current Cars
              2014 M235i
              2009 R56 Cooper S
              1998 M3
              1997 M3

              Comment


                #8
                Originally posted by trent View Post
                I have 1250F 1535R

                IT isn't too bad

                Good god....lbs/in?

                I am running 500/650 and it is a little on the stiff side for the street
                SEA E30Kr3w

                Comment


                  #9
                  yea it handles insane!

                  Comment


                    #10
                    Originally posted by trent View Post
                    yea it handles insane!
                    Well, screw you, I am getting 1500f/2100R next week.

                    I am a man . . .
                    Current Cars
                    2014 M235i
                    2009 R56 Cooper S
                    1998 M3
                    1997 M3

                    Comment


                      #11
                      you aint shit

                      Comment


                        #12
                        Originally posted by trent View Post
                        you aint shit
                        You stepped in it now . . .
                        Current Cars
                        2014 M235i
                        2009 R56 Cooper S
                        1998 M3
                        1997 M3

                        Comment


                          #13
                          hey FUCK MR 325 HES AN IDIOT AND HOSED ME ON PARTS

                          Comment


                            #14
                            Originally posted by kishg View Post
                            wow.. those are high spring rates.. is it a dedicated track car? what dampers?
                            It is a street car. These rates are the from the cars running in the Gruppe N GTR DTM Euro Cup series.

                            Comment


                              #15
                              I've got the Gruppe N/A springs on order with the monobloc shocks. 1890/2790 rates. Beat that.

                              -Charlie
                              Swing wild, brake later, don't apologize.
                              '89 324d, '76 02, '98 318ti, '03 Z4, '07 MCS, '07 F800s - Bonafide BMW elitist prick.
                              FYYFF

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