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Re: Header tethers
[Re: 68valiant68]
#1539395
11/24/13 10:11 PM
11/24/13 10:11 PM
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Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
rowin4
master
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master
Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
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I had to laugh when I first read of this new NHRA rule. But since then I have witnessed 2 Borla mufflers come off race cars going down the track. Didn't cause a accident but the cars did get upset buy running them over. I don't know if it was a bracket failure or a maintenance failure by not checking the bolt/nut. The tethers seem to be a little over priced, a couple of t-bolt clamps a foot of cable should be under 20 bucks, but then again, it's for NHRA safety rules. 
it's ok to butt heads, just don't do it with a butthead
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Re: Header tethers
[Re: rowin4]
#1539396
11/24/13 10:22 PM
11/24/13 10:22 PM
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Joined: Sep 2013
Posts: 168
Moparts
SSDart
member
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member
Joined: Sep 2013
Posts: 168
Moparts
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Quote:
I had to laugh when I first read of this new NHRA rule. But since then I have witnessed 2 Borla mufflers come off race cars going down the track. Didn't cause a accident but the cars did get upset buy running them over. I don't know if it was a bracket failure or a maintenance failure by not checking the bolt/nut. The tethers seem to be a little over priced, a couple of t-bolt clamps a foot of cable should be under 20 bucks, but then again, it's for NHRA safety rules.
I work at my local track once in awhile running the lanes. It is amazing how many poeple have come up yo me with burnt hands from picking up collectors and mufflers that come off.........
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Re: Header tethers
[Re: 80arrow]
#1539398
11/24/13 10:53 PM
11/24/13 10:53 PM
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Joined: Sep 2013
Posts: 168
Moparts
SSDart
member
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member
Joined: Sep 2013
Posts: 168
Moparts
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Quote:
Would you still have to use these teathers if you weld the collector to just one of the primaries?
If you weld with a one in stitch on 2 primaries I believe your ok....
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Re: Header tethers
[Re: SSDart]
#1539399
11/25/13 09:28 AM
11/25/13 09:28 AM
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Joined: Jan 2003
Posts: 276
Mid west
Gearhead383
enthusiast
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enthusiast
Joined: Jan 2003
Posts: 276
Mid west
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As per the 2014 rule amendments:
Exhaust collectors/stacks must be securely fastened (i.e., metal connector straps, bolted, welded, etc.) to prevent loss of collector/stacks during competition. All removable multi-piece exhaust collectors/stacks must be securely fastened with either an NHRA-accepted header tether, or a minimum ½” (half-inch) stitch weld located on each primary tube to prevent loss of collector/stacks during competition. A current list of NHRA-accepted header tethers is available on NHRARacer.com.
Last edited by Gearhead383; 11/25/13 09:34 AM.
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Re: Header tethers
[Re: J_BODY]
#1539401
11/25/13 11:01 AM
11/25/13 11:01 AM
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Joined: Jan 2003
Posts: 6,350
Aurora, Oh.
max_maniac
master
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master
Joined: Jan 2003
Posts: 6,350
Aurora, Oh.
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Quote:
yeah....but the $200 ones were so pretty!
There is an ad in ND that has header tethers advertised for $49.99 and another set for $99.99 IIRC...... A bit more affordable then the $200.00 ones!!
Russ
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Re: Header tethers
[Re: max_maniac]
#1539402
11/25/13 12:55 PM
11/25/13 12:55 PM
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Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
MRMOPAR622
top fuel
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top fuel
Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
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If I remember correctly 4-1/4" by 3/4" grade 8 bolts and 4-1/4" lock nuts was under $2.00 at Marvin's .
"To Be The Man'You Have Got To Beat The Man"
"T/D and Pro-Bracket Racer"
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Re: Header tethers
[Re: MRMOPAR622]
#1539403
11/25/13 02:45 PM
11/25/13 02:45 PM
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Joined: Jan 2003
Posts: 6,350
Aurora, Oh.
max_maniac
master
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master
Joined: Jan 2003
Posts: 6,350
Aurora, Oh.
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Quote:
If I remember correctly 4-1/4" by 3/4" grade 8 bolts and 4-1/4" lock nuts was under $2.00 at Marvin's .
 But can you get them with an NHRA approved tag 
Russ
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Re: Header tethers
[Re: B G Racing]
#1539405
11/26/13 02:00 PM
11/26/13 02:00 PM
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Joined: Jan 2003
Posts: 19,361
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,361
Las Vegas
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They are required because so many people NEVER do any maintenance to their cars. Thus not catching when tabs break or bolts come off. Just another case of all of us paying for the mistakes of others. Just like insurance....
FWIW I have seen this happen on three seperate occasions and always on dragsters. Where it should be easily seen if guys ever looked at their junk. Imagine tire shake is causing it to happen.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: Header tethers
[Re: Al_Alguire]
#1539408
11/26/13 08:23 PM
11/26/13 08:23 PM
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Joined: Mar 2006
Posts: 9,827
MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,827
MI, usa
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Quote:
They are required because so many people NEVER do any maintenance to their cars. Thus not catching when tabs break or bolts come off. Just another case of all of us paying for the mistakes of others. Just like insurance....
FWIW I have seen this happen on three seperate occasions and always on dragsters. Where it should be easily seen if guys ever looked at their junk. Imagine tire shake is causing it to happen.
And what happens when they don't maintain the teathers and they fall off?
Doug
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Re: Header tethers
[Re: dvw]
#1539409
11/26/13 08:39 PM
11/26/13 08:39 PM
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Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing
master
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master
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
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Quote:
Quote:
They are required because so many people NEVER do any maintenance to their cars. Thus not catching when tabs break or bolts come off. Just another case of all of us paying for the mistakes of others. Just like insurance....
FWIW I have seen this happen on three seperate occasions and always on dragsters. Where it should be easily seen if guys ever looked at their junk. Imagine tire shake is causing it to happen.
And what happens when they don't maintain the teathers and they fall off?
Doug
Yeah,I would like to see how those long tie rods last under severe vibration and other types of harmonics.The shorter the connecting method the stronger.We still maintain the standard flat bar and tabs will do the job.We have never lost a collecter in all the years We've raced.To disallow this method is stupid imo. 
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