[Marcellus]

Originally Posted by IA_Chiefs_fan

Oh, damn!

Heh, its more than just a cage required.

9.99 1/4-mile (6.39 1/8-mile)/ 135 mph or quicker:

-Roll cage is required on all vehicles at 9.99 and quicker or any vehicle running 135 mph or faster (regardless of e.t.). The roll cage must be constructed of minimum 1 5/8 o.d.x .118 mild steel tubing, or 1 5/8 x .083 chrome moly tubing. Roll cage must also be certified by NHRA every 3 years, and have a serialized sticker affixed prior to participation. The cage must be padded anywhere the driver's helmet may contact it while in the driving position. This style of cage is good til 8.50 1/4-mile times, then a funny car style cage is required.
See diagram below.

-Window net required (can be ribbon or mesh, no altering allowed unless done by manufacturer. No expiration date per 2008 NHRA rule book, but some have said 2 years on expiration/re-cert. Check with your local track or division).

-NHRA competition driver's license required, done by car designation (dragster, door car, etc). A physical, 2 NHRA licensed drivers to witness/sign your forms and minimum 6 runs are required.

-Flexplate SFI 29.1 and shield SFI 30.1 required (no expiration dates listed, but I believe the shield is 5 years)

-Protective Clothing (SFI jacket and pants with a 3.2A/5 rating, gloves and neck collar, no expiration date)

-Battery cutoff (regardless or whether battery is still up front or relocated to rear of vehicle)

-A full-face helmet is required with a minimum Snell K98 or M2000/SA2000 rating. Helmets last 12 years from their rating date (example a Snell 2005 would be good until 2017). Shield is permitted but not required. This rule posting is as it applies to cars like ours (closed body type). For open cars a different helmet ruling is required.

-A engine diaper is required at NHRA national and divisional races, local races vary, check with your division or track.