NHRA legal cage question

[rockthemullet]

Is there a minimum length for the rear bars off of the main hoop? I'm working with a mid engine car and don't want to shoot through to the engine bay in the rear. Since the b-pillar in a mid engine is structural, can I tie into the b-pillar instead?

~Eric

[rockthemullet]

SCCA Rules state:

On cars where the rear window/bulkhead prohibits the installation of rear braces (e.g. Honda del Sol), the main hoop shall be attached to the body by plates welded to the cage and bolted to the stock shoulder harness mounting points. This installation design must incorporate a diagonal bar connecting the top of the main hoop to the lower front passenger side mounting point (Petty Bar). Alternatively, the rear window may be removed and a clear, lexan replacement installed. The rear cage braces may pass through this replacement window and through the engine cover or bodywork to allow connection to the frame or unibody. Such allowances shall be noted on the car’s specification line.

Hopefully NHRA is similar.

~Eric