Header Tether Requirement Clarification

[Jeff Teuton]

Sand in your pants? Ed, I worry about you.

[Ed Wright]

Forgot about the diapers. When, or do, we have to buy those?

[ss3011]

The rule says you need to have a tether that goes from the primary tube to the collector. If you have a collector extension, does the tether go from the primary tube to the extension ? The rule is not clear to me. Thanks for a clarification.

[gsa612]

Originally Posted by ss3011

The rule says you need to have a tether that goes from the primary tube to the collector. If you have a collector extension, does the tether go from the primary tube to the extension ? The rule is not clear to me. Thanks for a clarification.

The way I understand it yes,unless you weld the ext.to the collector,when you buy a kit you will have to get the longer cable to reach. gsa612

[70AARCuda]

What if your collector is completing welded to primary tubes like a street header and you bolt extensions to the welded collector?

[ss3011]

Scott, This gets to my question about securing the collector extension. Does the rule require each part from the primary tube through the collector extension, needs to be secured with a tether ? Your design which secures the collector, and the collector extension with a single tether, could save a Racer the added expense of having two tethers if another tether is required to secure the collector extension. Does NHRA need to clarify the rule ? What is your understanding ?

[70AARCuda]

what would the requirement be for welding the extension on to the collector?

I saw the one inch bead for each primary tube but nothing about an extension on the collector?

[Rich67stang]

This has to be the most ridiculous rule needed. If your header collectors blow off because your tabs are rusted/rotted and you do not maintain your equipment, but adding tethers solves the problem...unbelievable.

[70AARCuda]

Originally Posted by A56

If you can get the headers on and off the car with the collector extensions on them, then just weld them on, do (3) 1" beads per extension, im sure that will make NHRA happy. If you dont do anything, they might turn you away. If you cant get the headers on and off the car with the collector extension on, pick you favorite tether vendor and buy a kit.

Mark Lelchook
D/ED F/SA

NHRA says a 1" stitch weld required on each tube, in this case the collector is one-tube and the extension is the other. That is how I am understanding it.

Got that answer from one of the vendor about welding the extension...well..got a few weeks before 1st race.