Rear coilovers on supers

[evilC]

I've gone for Spax on the rear in anticipation of adding a threaded sleeve for coil overs. However, I will be retaining the torsion bars as well using the coils just to up the overall spring rate. I would be very nervous about relying on the 12mm bolt at the top and the aluminium housing at the bottom to withstand the stress of providing the fixing for 500lb/in + springs. Remember that the bolts are in cantilever bending that creates a moment that is around 4 times that of a bolt suspended between two fixing points. I can't see any good reason unless of course you would require a full progressive spring rate instead of the linear one that was imparted by the torsion bar.

evilC