What spring rates to go with?

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  • optimusp517
    Mod Crazy
    • Oct 2005
    • 797

    #1

    What spring rates to go with?

    Ordered some GC coils.

    Here's my usage:

    daily driver
    no track days
    no autocross
    wants a slammed ride or low ride
    don't want too much bounce, and don't mind stiffness

    Trevor from GC told me 375/475. should I just go with that and listen to them or something harsher?

    Also btw what spring rates does H&R cup kit have?
    sigpic
  • 318isbmw
    Moderator
    • Nov 2005
    • 2841

    #2
    Mine are for roughly the same purpose and I just got 375/450, and I know beirbrenner also ran 375/450 I believe it was, its why I ended up with mine...

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    • e30this
      No R3VLimiter
      • Dec 2007
      • 3580

      #3
      if you dont mind a stiff ride. I would go with 500 700.. Its not to to stiff and when you hit a hole or bump its like one bounce..
      Im running them now and I think its perfect.

      Comment

      • z31maniac
        I waste 90% of my day here and all I got was this stupid title
        • Dec 2007
        • 17566

        #4
        Buy my used 350/500 springs.

        Great street setup.
        Need parts now? Need them cheap? steve@blunttech.com
        Chief Sales Officer, Midwest Division—Blunt Tech Industries

        www.gutenparts.com
        One stop shopping for NEW, USED and EURO PARTS!

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        • optimusp517
          Mod Crazy
          • Oct 2005
          • 797

          #5
          no other inputs???
          sigpic

          Comment

          • brn2ply7
            Grease Monkey
            • Jul 2007
            • 301

            #6
            I also run a similar setup to e30this except am running stock front and no rear bar with a 450f-700r setup and it is really worth the bumpiness. And like he said its just one bump. If you pick up adjustable shocks then you can just set them soft for when you don't want the handling capabilities. My car set soft really rides pretty normal lol.
            89 325i parts car
            90 325i in progress
            ground control 400f 700r-koni adjustables-koni adjustable sways-reinforced control arms-ground control camber plates-e36 cabrio shock mounts-4.10 lsd-5 speed swap in the works
            --tryng to join the schwarz army one day at a time--sigpic

            Comment

            • Hodge
              E30 Addict
              • Jun 2008
              • 424

              #7
              I have 350/475 springs and it rides great.

              And my car is slammed.
              E30- 1989 325is

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