Thats what i thought, finnish vw fellow with 300hp on a splitwindow also thought that torsionbars need support more than just body bolted to it
http://ub-52.blogspot.fi/ (The tubechassis car is a different project, i have designed that rear suspension.)
http://www.youtube.com/watch?feature...&v=QOrhwTLF3hA
I am thinking either cage tied to torsionbars or remmele style bars:
http://germanlook.net/forums/showthread.php?t=11601