Oh, well that's easy, Vorshlag's track car uses a higher rate than 700lbs/in from what I remember if not it's the same:
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They didn't run Eibach dampers, they ran MCS RR2s IIRC. I believe they ended up with an 800lb spring. Read my post, said haven't heard of anyone running a 700 with the Eibachs.
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