Header Retention Rule Revision

Bob Gullett · 02-19-2014, 03:44 PM

As per NHRA in the latest rules update.
SECTION 20: GENERAL REGULATIONS, ENGINE: 1, 1:3 EXHAUST (Page 3) (2/18/2014) All cars vehicles must be equipped with exhaust collectors, headers, or stacks installed to direct exhaust out of car vehicle body to rear of car, away from driver and fuel tank. No part of the exhaust system may be routed through the driver’s compartment. Exhaust collectors/stacks system components must be securely fastened (i.e., metal connector straps, bolted, welded, etc.) to prevent loss of collector/stacks system components during competition. Effective Jan. 1, 2014, All removable multi-piece exhaust collectors/stacks must be securely fastened with either an NHRA-accepted header tether, or a minimum ½” (half-inch) stitch weld located on each primary tube or be permanently attached to the vehicle body or frame with positive fasteners (i.e. exhaust hangers, support brackets, bolts/nuts, etc.) such that they require tools for removal to prevent loss of collector/stacks during competition. A current list of NHRA-accepted header tethers is available on NHRARacer.com.

02-19-2014, 03:44 PM	#1
Bob Gullett VIP Member Join Date: Mar 2002 Posts: 1,099 Likes: 56 Liked 461 Times in 111 Posts	Header Retention Rule Revision As per NHRA in the latest rules update. SECTION 20: GENERAL REGULATIONS, ENGINE: 1, 1:3 EXHAUST (Page 3) (2/18/2014) All cars vehicles must be equipped with exhaust collectors, headers, or stacks installed to direct exhaust out of car vehicle body to rear of car, away from driver and fuel tank. No part of the exhaust system may be routed through the driver’s compartment. Exhaust collectors/stacks system components must be securely fastened (i.e., metal connector straps, bolted, welded, etc.) to prevent loss of collector/stacks system components during competition. Effective Jan. 1, 2014, All removable multi-piece exhaust collectors/stacks must be securely fastened with either an NHRA-accepted header tether, or a minimum ½” (half-inch) stitch weld located on each primary tube or be permanently attached to the vehicle body or frame with positive fasteners (i.e. exhaust hangers, support brackets, bolts/nuts, etc.) such that they require tools for removal to prevent loss of collector/stacks during competition. A current list of NHRA-accepted header tethers is available on NHRARacer.com. __________________ 68 Chevy11 327 F/S Last edited by Bob Gullett; 02-22-2014 at 01:27 AM.