Rear coilovers on supers

[Simon]

Originally Posted by Wally

No, but 'we' (as in: not me, haha) found out that H&R has a claim on their site somewhere saying they did the research and found out the mounting points were strong enough!
HR is quite a respectable company...

H&R supplied the springs from the (Bilstein) cup suspension used in the Porsche 944 cups, which is how they ended up creating a tüv-approved coil-over set for the rear. They do still offer a complete coil-over set for the 944 with a tüv certificate stating that it is to be used without the torsion-bars.
http://www.h-r.com/bin/RSS-37-827.pdf

For the beetle however they only offer a coil-over for the front and non-coilover dampers for the rear, so they keep the torsion-bars in place, see: http://www.h-r.com/bin/29581.pdf

This basically means

• removing the torsion bars and running coil-overs on the rear of a beetle officially isn't legal in Germany
• The 944 aluminium trailing arm and the 12(?)mm bolt for mounting the damper is strong enough to handle the loads it is subjected to
• The upper damper mount on the beetles chassis could be the weak point (at least it hasn't ever been tüv approved to handle the loads from a coil-over)