Quote Originally Posted by mike223 View Post
You can start here: http://www.ihra.com/images/2017/IHRA_2017_Rulebook.pdf


Page 70 for why you're likely to be escorted to the gate if you run under 13.50 in the 1/4:

"A minimum of a 6 point roll bar is mandatory on all convertibles running 11.OO to 13.49 1/4 mile and 8.25 or quicker 1/8 mile"


Page 82 for why it is probably impractical to attempt to pass their roll bar standard:

"and at least as wide as the driver’s shoulders or within 1” of the driver’s door <<<snip>>> Side-bar must be included on driver’s side. The side bar must pass the driver at a point midway between the shoulder and elbow"


IHRA and NHRA rulebooks are near identical in this regard.

I have abandoned any hope of complying with those roll bar rules with a street roadster. A full roll cage is *to me* beyond the scope of a street car (requires bars too close to my skull)


A challenge car cage might arguably pass, but I'm thinking the tubing is probably too small in diameter.
wow, that is a bummer! I will call them, or go over there to observe. It is better to be there in person so they can see the car and I can ask questions. Safety first.