Nascar Door Bar Installation Legality

[zchris]

OK , the Benz in the classifieds has brought up a good question on what is legal installation. In the past, if it did not say it was OK in the ruleset, it was not. Now is cutting the B-pillar legal to install nascar bars. In the case of a 4 door car, it is certainly stronger. But I cannot find wording that says that is an acceptable part of the car to cut. Only the door itself. Now if it were up to me we would be allowed to weld the cage to the unibody anywhere and everywhere. But I do not write the rules. Come on you rules nerds. Let this not be part of rules creep.
Chris

[Charlie Broring]

I know of two ITB cars with the door bar going through the B pillar. This resulted in a much stronger and safer installation then using a "zig-zag" bar with two bends in in order to go around the pillar. I question the legality however.

[TomL]

9.1.3.f includes a provision "Other than to provide for installation of required safety equipment or other authorized modifications, no other driver passenger compartment alterations or gutting are permitted." To me, that says you can modify the chassis to install safety equipment (e.g., the cage).

[dickita15]

I have always read that the same way as Tom.

[Ed Funk]

Don,t think passenger compartment and chassis are the same thing. If allowed to make chassis mods to allow roll cage installation......whew, slippery slope!!

[ddewhurst]

9.1.3.f includes a provision "Other than to provide for installation of required safety equipment or other authorized modifications, no other driver passenger compartment alterations or gutting are permitted." To me, that says you can modify the chassis to install safety equipment (e.g., the cage).

Playing the deviles advocate.

Using rule stated by Tom is it legal to remove the metal braces welded in place between the A pillar & the cowl when installing the front down tubes for an ITA Miata?

[joeg]

Why Not!

On the B-Pillar, as long as you do not weld rhe remaining pillar to the installed door bar, you are perfectly legal.

[Ed Funk]

Is the B pillar part of the chassis? Can I cut a hole in an inner fender to take the rear brace to a more advantageous point on the rear suspension cross member?