New for 2014

[Dan Fahey]

Originally Posted by tpoh815

And thanks for the "Installation grace period" cause I know damn well that there will be ton of cars at Pomona 2014 with out this chicken wire crap on their headers! So am I to understand Lokcraps wire is stronger than my welder. Maybe they can install it in all the buildings in California and make them earthquake proof too! Are they paying contingency for this?? Makes me think I was right all along for holding up my winter cars exhaust with an old coat hanger. I'm gonna go take my Prozac now that I'm wound up.

Well hope they are secured..

Got a good jump on a 9 second Nova that blew past me in the traps at Cecil.
It disgorged its exhaust system in front of my car.
Was lucky enough to dodge the pieces at 100 mph...

FWIW not the first time had to avoid crap falling off a fast car.

D

[Mark Yacavone]

Originally Posted by Dinsdale

SECTON 20: GENERAL REGULATIONS, ENGINE: 1, 1.3 EXHAUST (Page 3)
(2/4/2013)

Exhaust collectors/stacks must be securely fastened (i.e., metal connector
straps, bolted, welded, etc.) to prevent loss of collector/stacks during competition.
Effective Jan. 1, 2014, removable multi-piece exhaust collectors/stacks must be
securely fastened with an NHRA accepted header tether, such as Lokar’s
1400009 or 1401009 to prevent loss of collector/stacks during competition.

So even if the collector is strapped, bolted or welded to prevent loss a teather is still required. Certainly makes a lot of sense to me.....NOT!

Dale , I don't think "welded " would be considered "removable"...
Maybe it does ..with these guys..You never know.


http://www.lokar.com/product-pgs/dra...g.html?t=34740
Nice! Classy!

[RonP]

Seems like it would make good sense to specify the "tether" does not permit the collector from becoming separated from the primary tubes.

As stated earlier, having a collector bouncing under car travelling down track is an additional concern.

It would also make sense to contact some of the header builders to establish a best practice for safely mounting collectors to headers.

[T Ketels]

So, if I'm reading this correctly, a car with removable collectors and collector extensions would need two safety tethers per side, correct?

How about a car with an X-pipe with multiple pieces? Just curious.......

[FINESPLINE]

If the collector is full welded to the primary pipes would it still be considered removable ? I dont think so and if that is the case ,do you need these tethers ?

This does not pertain to all headers as they have to be disassembled to remove from chassis.

[Sean Marconette]

I have had one tech inspector look under my car, and I was impressed with him and commented that he was the first to do so. I think it could have been that I was an racing in a different division. But most of our cars are not easily accessible to see what is under the car. Especially the headers and tabs.

Sean

[Harry 6674]

Where these are really needed are on funny car bodies. Sooner or later one of those is going to land in the stands. If they have a tether they aren't working very well.

[actionange]

Originally Posted by RonP

Seems like it would make good sense to specify the "tether" does not permit the collector from becoming separated from the primary tubes.

As stated earlier, having a collector bouncing under car travelling down track is an additional concern.

It would also make sense to contact some of the header builders to establish a best practice for safely mounting collectors to headers.

I agree with the above

My own experience:
I had one complete collector come off at the hit of the throttle on the starting line. It went under my right rear slick and was shot out the rear. Fortunately it didn't puncture the tire or hit the starting line crew in the process. NOW every tube has a tab that is bolted together with lock washers and double nuts. All is well since then.