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Rob 930 Rob 930 is offline
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Join Date: Dec 2002
Location: Seattle
Posts: 660
I just got the Rebel Racing coilover kit for the rear, with some 250 lb "helper" springs and revalved Bilsteins appropriate for my setup. I have 31 mm rear torsion bars, but they just aren't enough for my car on the track. I have the coilovers installed, but I haven't set them up the way I want them yet. My understanding is that I need to lower the car (re-index the T-bars) somewhat and then bring it back to the desired ride height using the adjustable spring perch. The question is: how much? I'm thinking somewhere on the order of 3/4 to 1 inch. Too much and I risk coil binding; too little and I could lift off the springs under cornering. Despite the complexity of having two sets of springs in the rear, I liked that idea better than either risking chassis damage from full coilovers, or reinforcing (with a cage) which I'm just not ready to do yet.

78 930 EFI
Old 08-26-2008, 09:18 AM
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