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As long as the car is 100% showroom they can run purestock and not need any of the added saftey equipment. Put on a chrome lug nut and your not 100% stock. This is how the Z06 etc can run without the cage and such.
Faster then 135 MPH or lower then 11/49 is when you will be required to go into aftermarket and saftey parts.
What i can remeber:
6 point Roll BAR + Padding + harness 11.49 ( hardtop/ T-top) ( 13.0 for vert) , Roll CAGE 10.99 or lower is a cage. 9.99 your into a whole new game!
DS loop for Slicks 13.99 or lower ET.
DS loop for street tires 11.49 or lower.
General 11.49 to 11.0. 10.99 - 10.0 below apply plus more!
For aftermarket wheels the stud must engauge 1/3 past the lug's diameter.
( Ok, not 100% on this one! )
After market seats must be bolted to floor and roll cage
Battery relocated, or 9.99 or over 135 MPH requires a master cutoff
11:49 to 10.0 or with an aftermarket SC or Nitris requires driver to wear SFI fire jacket
135MPHor over = parachute
There are rules for flywheel, harmonic balancer, transsheid etc. All of which have expiration dates just like helmets and harnesses! $$
I have the NHRA rule book somewhere. But good freaken luck trying to figure it all out! NHRA certainly did a great job of confusing the crap out of things.
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93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada
1) Build it
2) Race it
3) Break it
4) Repeat!!!
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