SFI – chassis

Spec #	Dragsters	Current Revision Date 2012 oct
2.1A	Rear Engine Dragster (Top Alcohol/Methanol) – 5.99 Seconds & Quicker	March 5, 2010
2.2C	Front Engine Dragster – 5.99 Seconds & Quicker	March 5, 2010
2.3N	Rear Engine Dragster (Top Fuel) – 6.29 Seconds & Quicker	November 19, 2007
2.4C	Front Engine Dragster – 6.00 to 7.49 Seconds	March 5, 2010
2.5C	Rear Engine Dragster – 6.00 to 7.49 Seconds	March 5, 2010
2.6A	Front Engine Dragster – 7.50 Seconds & Slower	March 5, 2010
2.7C	Rear Engine Dragster – 7.50 Seconds & Slower	March 5, 2010
Spec #	Funny Cars, Altereds and Roadsters	Current Revision Date
10.1E	Funny Car Roll Cage (Alcohol, Advanced ET, Nostalgia, etc.)	December 9, 2004
10.2	Altered Car Roll Cage – 6.00 to 7.49 Seconds	June 13, 2003
10.3	Altered Car Roll Cage – 7.50 Seconds & Slower	June 13, 2003
10.4	Side Steer Roadster Roll Cage – 7.50 Seconds & Slower	December 9, 2004
10.5	Nitro Fuel Funny Car Chassis	January 17, 2008
Spec #	Full Bodied Cars	Current Revision Date
25.1E	Full Bodied Car Tube Chassis – 7.49 Seconds & Quicker; 2,800 lbs. Maximum	June 14, 2002
25.2	Full Bodied Car Tube Chassis – 7.49 Seconds & Quicker; 3,200 lbs. Maximum	June 14, 2002
25.3	Full Bodied Car with Aftermarket Body Shell and Tube Frame, OEM Body Shell and OEM Frame with OEM or Modified Floorpan and Firewall, or Uni-Body with OEM or Modified Floorpan and Firewall Roll Cage – 6.50 to 7.49 Seconds ET; 3,600 Lbs. Maximum	September 1, 2009
25.4	Full Bodied Car Tube Chassis – 7.50 to 8.49 Seconds; 3,600 lbs. Maximum	June 14, 2002
25.5	Full Bodied Car Stock or Modified/OEM Floorpan and Firewall with OEM Frame or Uni-Body Construction – 7.50 to 8.49 Seconds; 3,600 lbs. Maximum	June 14, 2002