Windshield rollcage cross brace

[rsportvolvo]

I can't seem to find any verbage in the GCR forbidding the use of tubes across the windshield area. These are quite common the Aussie V8 Supercar Fords and Holdens (see link below). FIA regulations have a area that must be kept clear. Any tech folks have some comments?

http://www.carsales.com.au/news/2006...9-debuted-2136

[quadzjr]

from a structual standpoint I can see why you would. however idont' see how that wouldn't obstruct view. Maybe on larger cars it won't be as bad.

[Greg Amy]

There are no restrictions to this, however since it is not typical I would discuss this in advance with your local SCCA tech inspector to ensure they don't have a problem with it.

[joeg]

They act as big gussets...no problem

[MMiskoe]

I've seen cars w/ a horizontal bar across the top of the dash for lack of space under or in it.

[rsportvolvo]

I was referring to the diagonal tube, not the high knee tube.

[Jonathan]

How come in all of this no one has mentioned safety as a factor for adding windshield bracing? The way SCCA cages are constructed, there is no true "halo" bar that is tied in behind the driver that encircles the entire head area. Instead it's a single tube cross-brace that is out there all on it's own and unsupported, leaving your life accountable to 2 welds on either end in the event of impacting a wall or another car with your roof. I added more of a NASCAR style downbar in the center as well as some corner bracing and gussets, as well as an extra roof bar from the center of the crossbar rearward. In-experienced drivers and safety workers as well as tracks that might have something to be desired for safety should make us all think about safety first, then the benefits of performance second. You can't race from the hospital bed.