Header tether needed?

[Rory McNeil]

Also many race style headers are multiple tube, and need to be installed 1 piece at a time. Take a look at the headers on most 390 & 428 Mustangs and Fairlanes. No way to install those headers if they are all 1 piece, (hell, its a major PITA, even with 8 separate tubes!)

[MAURICE BLENDHEIM]

Originally Posted by Rory McNeil

Also many race style headers are multiple tube, and need to be installed 1 piece at a time. Take a look at the headers on most 390 & 428 Mustangs and Fairlanes. No way to install those headers if they are all 1 piece, (hell, its a major PITA, even with 8 separate tubes!)

PITA ? bread ? or Politically Incorrect Technical Answer ?

[JeremyDuncan]

Originally Posted by MAURICE BLENDHEIM

PITA ? bread ? or Politically Incorrect Technical Answer ?

It's an widely used acronym.

PITA= Pain in the ***

[terry1]

Not long after the "tether" rule came into effect, at a race in Epping, a guys "tether"
came off.There is even a video of that some where!
The next thing will be a "tether" to hold the "tether" on!!!
Then a "tether" to hold the "tether" to hold the "tether" ....................
Terry K

[Jim Caughlin]

Originally Posted by terry1

Not long after the "tether" rule came into effect, at a race in Epping, a guys "tether"
came off.There is even a video of that some where!
The next thing will be a "tether" to hold the "tether" on!!!
Then a "tether" to hold the "tether" to hold the "tether" ....................
Terry K

So explain the logic here, regardless of my experience (and welding skills), NHRA is OK with me building my entire chassis in my backyard but when it comes to header tethers I need to buy a $125 "NHRA certified' piece of cable and two hose clamps that I could have bought from Grainger for maybe $20? Seems risky to me, maybe they should have to be replaced every two years?

[gsa612]

How long has this "weld-on" tether been accepted?.I thought the reason for using the T-bolt clamp on the pri.pipe and collector was to prevent the old style tabs with 1/4" bolts and lock nuts from breaking off at the weld and the collector coming off.I know you still use the original tabs too, but how is this any better?...gsa612

[Sean Cour]

Originally Posted by bykr

After doing a search on here and not really finding a definite answer I'm wondering if I need a tether on a collector extension that has a three bolted flange. The Collector is welded to all four header tubes(street style header).

So lemme get this strasight......you’re on the forum, telling everyone how knowledgeable you are in manifold/head engineering, but can’t figure out the header tether rule?

[bykr]

Originally Posted by Sean Cour

So lemme get this strasight......you’re on the forum, telling everyone how knowledgeable you are in manifold/head engineering, but can’t figure out the header tether rule?

Far from that! Just been a racer a long time in some fast cars and using some common sense. New to the SS game so I'll probably be asking some dumb questions