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Old 02-26-2014, 02:51 PM   #77
prixmoracing
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Default Re: Header Retention Rule Revision

Quote:
Originally Posted by FED 387 View Post
Prixmo---- you can use bolts/tabs/springs if you WANT to but you MUST use either a 1/2inch stitch welds/NHRA approved tethers/some type of device to bolt the collector to the body---I gaurantee you, you show up without a welded/tethered/or hanger bolted to the body collector you're gonna get bounced
You are wrong about your if you WANT to use bolt/spring/etc because that is the primary attachment. and that is required. Here is the rule.

"Secure the collectors/stacks with an NHRA-accepted header tether.

· Secure the collectors/stacks with a minimum ½” (half-inch) stitch weld located on each primary tube.

· Secure the collectors/stacks by permanently attaching them to the vehicle body or frame with positive fasteners such that they require tools for removal.
Please keep in mind that the attachment methods listed above are meant to be a secondary method of attachment. All factory attachments, such as springs and/or bolts, must remain in place."




Now slowly reread what both of us said, you need to use the original coupling devices (bolts/springs) and one of the 3 now approved tethering methods. Neither of us said you don't need one of the 3 approved tether methods.
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Last edited by prixmoracing; 02-26-2014 at 03:01 PM. Reason: spelling
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