Post #14
Ok, the torsion bars at the back are 20mm as standard (Someone WILL correct me if I'm wrong) going to a thicker 21mm bar effectively stiffens up the rear by 25% (Again, someone WILL be on to correct my aproximations)
Now, the standard rear setup bottoms out easily when loaded or driven hard, if you lower the car, and reduce the available wheel travel by 30mm, without changing anything then it will bottom out (Blow through all it's travel) harder and more often, this is bad. Fitting a stiffer spring (a torsion bar is a type of spring) counteracts to some extent the lowering. If you can couple this with a pair of Peugeot 205 Tarmac Grp N Bilstein dampers your back end will cope with pretty much anything you can throw at it.
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R H Davey Welding Supplies. I sell new and used welding equipment in the Hampshire area. I take on welding jobs in the evenings, ally casting repairs are one of my specialities but I can weld pretty much anything. PM me with your requirements.
Some of my services: (See my for sale threads)
Engine mount/chassis repair
Solid Beam Mounts BACK IN PRODUCTION
Harness bars