3100# Metric car, loose in and loose out

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  • Driver50x
    Senior Member
    • Jan 2013
    • 239

    #1

    3100# Metric car, loose in and loose out

    Spring rates;LF 800. RF 700LR 250. RR 225. 180 pounds of bite. 52% left side. All stock suspension. It is pretty fast and fairly competitive, but is loose on corner entry, either on or off the gas. I am driving it pretty smoothly, not pitching it in. The problem is not the brakes. It is also a little loose on corner exit, but not real bad.Should I try stiffing the front springs 100 pounds? Or softening the rear springs a bit, or something else?
  • Dirt Knife
    Senior Member
    • Jun 2012
    • 147

    #2
    Front springs

    Run a pair of 800's across front try that

    Or what do you have for stagger

    Comment

    • Racer96m
      Senior Member
      • Feb 2008
      • 425

      #3
      How much rear %?

      Dave
      2012 UMP Stock Car National Champions.
      2013 UMP Modified Rookie of the Year
      2014 Kankakee Speedway UMP Modified Champion
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      2016 Kankakee Speedway UMP Modified Champion
      2016 UMP Modified, Northen IL Regional Champion
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      • Driver50x
        Senior Member
        • Jan 2013
        • 239

        #4
        44% rear weight. That is the best I have been able to get so far under our strict rules.

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        • DaveBauerSS6
          Senior Member
          • Jun 2010
          • 566

          #5
          Put a 900 on the RF.
          Keep the 180 bite to start; thats close for the poor rear%.
          If possible add spacer to the RF if still loose.

          Is the rear end locked up or open ??
          Last edited by DaveBauerSS6; 05-21-2014, 11:05 AM.
          Gator Engineering

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          • Driver50x
            Senior Member
            • Jan 2013
            • 239

            #6
            The rear end is locked.

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            • speedbuggy
              Senior Member
              • Feb 2008
              • 259

              #7
              Your wheel weights are:
              LF - 840 RF - 896
              LR - 772 RR - 592

              I'd lower your bite down to 30lb or less and put LR-200, RR-175 springs in it.

              This should help you getting into the corner. You're only going to be able to get so much grip coming off with that light a rear weight.

              If you can move any weight, move it over to the right, too.

              Comment

              • drtrkr244
                Banned
                • Dec 2007
                • 1024

                #8
                It has been my experience, over the last 25 years, that stock clip cars like a 2-300 pound split across the front. I would first try a 900 on the LF.

                Also, metric cars have a high rear roll center and require more spring split. I generally have started with a 300 on the LR to offset the low rear weight %.

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