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-   -   Header Tethers - Jury IN or OUT (https://classracer.com/classforum/showthread.php?t=51558)

prixmoracing 01-30-2014 06:48 PM
Re: Header Tethers - Jury IN or OUT
 
Quote:
Originally Posted by Chris1529 (Post 418513)
Does this type of extension even fit the requirement for the tethers?
We were told at the D5 seminar that this style would not need to be tethered.

70AARCuda 01-30-2014 10:39 PM
Re: Header Tethers - Jury IN or OUT
 
Quote:
Originally Posted by prixmoracing (Post 418663)
We were told at the D5 seminar that this style would not need to be tethered.
I was told by a Div 7 tech person if the extension is bolted on and it can fall off...it needs to be tethered.....

I am stitch welding the extensions to the fully welded collectors....

Jody Lang 01-31-2014 02:33 PM
Re: Header Tethers - Jury IN or OUT
 
I thought with bolt on style you needed either nothing or a support bracket on the end of it?

jmcarter 01-31-2014 02:43 PM
Re: Header Tethers - Jury IN or OUT
 
Quote:
Originally Posted by Jody Lang (Post 418745)
I thought with bolt on style you needed either nothing or a support bracket on the end of it?
According to their last clarification a hangar bracket on a extension is not sufficient. It would have to be a full exhaust system to circumvent the need for a tether.

http://www.nhraracer.com/content/gen...836&zoneid=132

actionange 02-03-2014 11:04 AM
Re: Header Tethers - Jury IN or OUT
 
Here's what the Div 1 office told me regarding collector extensions:

The tether would need to be long enough to reach at attach to the extension but short enough to keep the collectors from falling off of the primary tubes.

thanks,

Ryck Campbell
NHRA, Northeast Division Technical Director
Tech Line: 315-335-8295, Mon & Thurs 7 - 9 pm
email: rcampbell@nhra.com

Interpret that for your application.

HandOverFist 02-03-2014 11:15 AM
Re: Header Tethers - Jury IN or OUT
 
Quote:
Originally Posted by actionange (Post 419027)
Here's what the Div 1 office told me regarding collector extensions:

The tether would need to be long enough to reach at attach to the extension but short enough to keep the collectors from falling off of the primary tubes.

thanks,

Ryck Campbell
NHRA, Northeast Division Technical Director
Tech Line: 315-335-8295, Mon & Thurs 7 - 9 pm
email: rcampbell@nhra.com

Interpret that for your application.
I thought the purpose of a tether was to retain in case of failure, not as a coupling device such as bolts.

actionange 02-03-2014 12:10 PM
Re: Header Tethers - Jury IN or OUT
 
My will still be bolted together. Collectors to primary tubes and extensions to the collector. Then add the tether to retain in the event the bolts fail.
Fun, fun, fun...

philbilly 02-04-2014 11:01 AM
Re: Header Tethers - Jury IN or OUT
 
when I backed off the trailer in florida I noticed a merge collector laying on the trailer ramp guess its time for some teathers. :D

Rick Blake 02-04-2014 02:39 PM
Re: Header Tethers - Jury IN or OUT
 
Quote:
Originally Posted by philbilly (Post 419180)
when I backed off the trailer in florida I noticed a merge collector laying on the trailer ramp guess its time for some teathers. :D
Yep.....it can happen :cool:

By the way Congrats on the win in Immokalee......was there all day Saturday, but had to watch on Motor Mania Sunday......Good Job !!!!!!!

Dale Hulquist 02-14-2014 01:18 PM
Re: Header Tethers - Jury IN or OUT
 
Just received my Collector Tethers, just ordered them Tuesday, Fast service guys and they look very well made. Thanks for posting contingency for stock/superstock I hope to collect a little this year. Thanks Dale H


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