NHRA Tether Rule Update

[Jeff Lee]

Originally Posted by Jim Wahl

A great question that needs to be answered! They still haven't answered why we can put in our own roll bar and submit them to tech but we are not capable of putting some clamps and cables on our headers and have them teched for approval! I disagree with you Jim Carter, this fact shouts kickback real loud! Jim

" The NHRA Technical Department will also accept a minimum ½” (half inch) stich weld located each primary tube as an alternative to the tethering system."

Don't insult our intelligence with this BS response! Weld my headers onto the car? Only a moron with no knowledge of race cars would suggest this!


.

And your suggesting that is not possible?

[Exhausted]

Originally Posted by Jim Wahl

A great question that needs to be answered! They still haven't answered why we can put in our own roll bar and submit them to tech but we are not capable of putting some clamps and cables on our headers and have them teched for approval! I disagree with you Jim Carter, this fact shouts kickback real loud! Jim

" The NHRA Technical Department will also accept a minimum ½” (half inch) stich weld located each primary tube as an alternative to the tethering system."

Don't insult our intelligence with this BS response! Weld my headers onto the car? Only a moron with no knowledge of race cars would suggest this!


.

This is the craziest part of this rule. "stitch" welding collectors onto primary tubes, (which only a desperate idiot would do) is in no way a permanent solution. It is not a long amount of time before those welds will crack and is Not a solution at all.

They should also change the "bolt" ruling to say that each tube that goes into a collector have its own bolt and brackets, this would allow for differences with 421 type headers verses 4into1 headers. I understand the ruling is 4 bolts per collector, referring to a normal 4into1 collector?

I am not aware of any foolproof way of keeping headers intact besides a regular maintenance inspection of hardware as it is subject to intense vibration and will fail given enough time. NHRA guys are not going to get under every car and make sure that even their "bolted" retaining devices are still intact.

The whole thing is obviously a attempt to limit exposure to lawsuits and throw them off onto manufacturers instead of those organizations who don't or can't inspect cars they let run on their track or work to protect their "customers" from being hurt at their events.

[Randall Klein]

My Nomad has fender well headers, very obvious to tech, I'm curious how tech will go checking low-to-the-ground Colbalts, etc with headers tucked well under the frame.....our SS/MA '57 needs a trans blanket and never once has tech knelt down and looked.....I suppose some might be visible from engine compartment

[novassdude]

Originally Posted by Jim Wahl

A great question that needs to be answered! They still haven't answered why we can put in our own roll bar and submit them to tech but we are not capable of putting some clamps and cables on our headers and have them teched for approval! I disagree with you Jim Carter, this fact shouts kickback real loud! Jim

" The NHRA Technical Department will also accept a minimum ½” (half inch) stich weld located each primary tube as an alternative to the tethering system."

Don't insult our intelligence with this BS response! Weld my headers onto the car? Only a moron with no knowledge of race cars would suggest this!


.

Jim Please don't give NHRA any more ideas. Next you will have to take it to an NHRA accepted shop to have any work done on your car.

[Ed Wright]

Originally Posted by Jim Wahl

A great question that needs to be answered! They still haven't answered why we can put in our own roll bar and submit them to tech but we are not capable of putting some clamps and cables on our headers and have them teched for approval! I disagree with you Jim Carter, this fact shouts kickback real loud! Jim

" The NHRA Technical Department will also accept a minimum ½” (half inch) stich weld located each primary tube as an alternative to the tethering system."

Don't insult our intelligence with this BS response! Weld my headers onto the car? Only a moron with no knowledge of race cars would suggest this!


.

Jim, I have to wonder how you got "weld my headers onto the car" out if that?

[Jeff Lee]

Ed,
Many race cars require disassembly of the headers to get them on & off the car. Heck, you can't even change the starter on my car without taking the collector off and loosening the flange bolts up @ the head. Stitch weld them up and they are on the car until you take a sawzall to the headers!

[Ed Wright]

Ok.

[Mike Gray]

If I can build a set that matches for $65.00 how would anyone know?
Products are on Amazon:
Sucor stainless steel swage eye (I guess I need to figure out how to get the orange coloring...lol)
Pro tie T bolt stainless clamps
Flexlock ss nuts
Stainless wire rope.

[gsa612]

Originally Posted by Mike Gray

If I can build a set that matches exactly for $122.77 including California tax, how would anyone know?
Products are on Amazon:
Sucor S0761-003 1/8" quick attach eye
Pro tie T bolt stainless clamps
Flexlock ss nuts
Stainless wire rope.

Is there a stamp on the clamp?, does it come with some cert.? If tech asks if you have a approved tether and you lie and there's a way they can tell, you'll be kicked from that race, and probably fined.It's worth it for nhra to have the tech guy do the lambada under your car if they can catch a ??$$ fine.

[SSDiv6]

Originally Posted by Mike Gray

If I can build a set that matches exactly for $122.77 including California tax, how would anyone know?
Products are on Amazon:
Sucor S0761-003 1/8" quick attach eye
Pro tie T bolt stainless clamps
Flexlock ss nuts
Stainless wire rope.

It actually costs less than the price you show if you shop for the parts.
The swageless terminals are used for boat and architectural rigging.
Nevertheless, if you build it yourself, is not NHRA approved.