[Dave-ROR]

Originally Posted by blur

Anyway, any idea if removing the sun roof alters structural ridgity? Would it be better just to shop around for a non-sunroof model? I'm at those crossroads for my car

First, removing the sunroof: I doubt it reduces rigidity vs leaving it there (which no racing organization that I can think of allows that anyways). The sunroof frame does mount to the roof structure, so once it's removed you lose some bracing but you can some back welding (or screwing/riveting) a panel back over the opening.

Second, if you have the choice, a non sunroof car is always the better choice, less work, more headroom since you don't need the bracing/mounting areas for the sunroof motors and such, plus it's a solid piece of sheetmetal instead of having a hole in it.

I thought you already had a car built though? I doubt it'd be worth the effort to move everything over so if you really wanted to eliminate the sunroof roof panel then cut it and weld in a non sunroof panel.