Running much stiffer rear springs??

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  • CrazyB
    E30 Addict
    • Feb 2004
    • 420

    #1

    Running much stiffer rear springs??

    I am currently using IE3 and billy sports.
    To make my new wider tires work i need to run height adjusters and a stiffer springs in the back.
    I dont have the budget to go to full coilover kit yet.
    Anyone know how it would affect handling to ru ie3 front springs and like a 650 or a 700 rear spring?

    The car is mainly used for autocross.

    AutoCross Photos!!https://picasaweb.google.com/eugenes18t
  • immajackuup
    E30 Enthusiast
    • Dec 2010
    • 1132

    #2
    Originally posted by CrazyB
    I am currently using IE3 and billy sports.
    To make my new wider tires work i need to run height adjusters and a stiffer springs in the back.
    I dont have the budget to go to full coilover kit yet.
    Anyone know how it would affect handling to ru ie3 front springs and like a 650 or a 700 rear spring?

    The car is mainly used for autocross.
    I daily 550 front and 700 rear with no complaint here.

    Comment

    • CrazyB
      E30 Addict
      • Feb 2004
      • 420

      #3
      I am not worried about comfort, i am more worried about running IE 3 springs in the front and a much stiffer that spring in the back that original ie3 back springs.

      AutoCross Photos!!https://picasaweb.google.com/eugenes18t

      Comment

      • CrazyB
        E30 Addict
        • Feb 2004
        • 420

        #4
        any ideas on this one?

        AutoCross Photos!!https://picasaweb.google.com/eugenes18t

        Comment

        • Jaxx_
          E30 Mastermind
          • Dec 2009
          • 1880

          #5
          stiffer rear end means more oversteer. Simple as that. Stiffer front end means more understeer.
          '84 318i M10B18 147- Safari Beige
          NA: 93whp/90ftlbs, MS2E w/ LC, 2-Step
          Turbo: 221whp/214ftlbs, MS3x flex @ 17psi

          Comment

          • einstein57
            R3V OG
            • Jun 2007
            • 10780

            #6
            Have you considered stiffer rear shocks and spring pads. I was able to run 245/45/16 tires on 16x8 et 20 wheels on my car with an aggressive fender roll. howdyhoayman is going up north this week to get a jessie stacks paint job. Maybe he can let you test drive his rears.
            Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

            www.gecoils.com
            My euro 316 project Transaction Feedback

            Comment

            • Jaxx_
              E30 Mastermind
              • Dec 2009
              • 1880

              #7
              running 16x8 225/50/16 at et30 without any rubbing in the rear.

              how wide are you going?
              '84 318i M10B18 147- Safari Beige
              NA: 93whp/90ftlbs, MS2E w/ LC, 2-Step
              Turbo: 221whp/214ftlbs, MS3x flex @ 17psi

              Comment

              • CrazyB
                E30 Addict
                • Feb 2004
                • 420

                #8
                I am running 17x9 with 255/40/17

                AutoCross Photos!!https://picasaweb.google.com/eugenes18t

                Comment

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