[Dr Ken]

It seems the rigidity of a parallelogram (cross section of our car) would benefit little from another strut across its interior. Typically the tower brace design takes no moments (it is hinged) at its contact points. I cant help thinking that if increasing stiffness is the aim, then a v-brace design is indicated. Like this sorta thing:

Thoughts?

 

[DAUTHI]

I would have to agree. The same thing goes for the front strut towers as well. A brace that is triangulated to the firewall is much more effective. As witnessed by the fact that they are disallowed in most, if not all, auto-x classes short of prepared. A single plane brace only serves to convert lateral flex into an inverse fore and aft flex under heavy stress. Screw strut tower bars, get a cage! :drool: right!

 

[Dr Ken]

An afterthought...
isn't that brace screwing into the petrol tank (pretty damn close at least) ??