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flash968 flash968 is offline
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Join Date: Jun 2006
Location: O.C. CA
Posts: 4,587
yup - the problem with any of the coilover kits is that unless you either reindex the torsion bars so they are no longer holding the car up, you have to add a tender spring and coupler to prevent the coil springs from dropping loose during wheel drop, unless you add preload to the spring to prevent it, which then raises the rear end of the car

rear spring rate changes are a slippery slope - not wanting to get into the painful process of reindexing, i went the coilover route, deleting the torsion bars - it took a long time to sort that out properly, from the torsion bar housing bushings needed to anchor the swing arm, to the spherical ends required on the shocks because rubber won't work for long, to getting the damping right on the shocks so as to provide a smooth ride while giving better performance

if i had to do it over again, i would have gone with bigger torsion bars instead - i want 300# at each corner, so that would mean a 29.25mm torsion bar (i could live with a 29 at 292#)

i've since set up quite a few cars, with varying degrees of stiffness in suspension, depending on the kind of driving to be done - it has been fun to see the responses and grins on the faces of the owners - the biggest noticeable change has been from the bracing though - even on a stock car it makes a huge difference - i have a cab like that too - totally stock suspension, but all 3 braces - everyone who drives it asks what kind of suspension i have, because it handles so much better - the braces dramatically reduce the camber change, and allow the suspension to be optimized

have fun
Old 09-02-2011, 08:18 AM
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