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-   -   Interesting new Rule coming in 2014 (https://classracer.com/classforum/showthread.php?t=46424)

dannyboy 03-26-2013 11:51 AM
Re: Interesting new Rule coming in 2014
 
NASCAR's exhaust systems are bolted in at least 3 places from header to exit at side of car. Tab on collector and pipes have spring with washer and nut to allow for vibration. This was the way I did it a few years back and passed tech many times.

BBF67 03-26-2013 11:57 AM
Re: Interesting new Rule coming in 2014
 
When was the last time a techman actually got down and looked under your car?

dannyboy 03-26-2013 12:05 PM
Re: Interesting new Rule coming in 2014
 
In NASCAR you put the car on jack stands and provide them with a creeper.

FED 387 03-26-2013 01:16 PM
Re: Interesting new Rule coming in 2014
 
Mark --go get em--will be following your results---by the way is this EVERY car in EVERY class that does not have fully welded headers/collectors???- eventually NHRA will have tethers on most anything if ya let em get away with it--FED387

KRatcliff 03-26-2013 01:42 PM
Re: Interesting new Rule coming in 2014
 
The staging lanes just need a nut checker like the golfers have a ball washer.

SSDiv6 03-26-2013 02:17 PM
Re: Interesting new Rule coming in 2014
 
The spring system and the long bolt are currently use in NASCAR.

Here are options:

http://www.spdexhaust.com/pdfs/AccPDFs/Retainers.pdf

SSDiv6 03-26-2013 02:19 PM
Re: Interesting new Rule coming in 2014
 
Quote:
Originally Posted by KRatcliff (Post 375226)
The staging lanes just need a nut checker like the golfers have a ball washer.
Are you volunteering?

...or wear a protection cup like baseball and martial arts fighters do... :)

KRatcliff 03-26-2013 02:25 PM
Re: Interesting new Rule coming in 2014
 
Quote:
Originally Posted by SSDiv6 (Post 375230)
Are you volunteering?

...or wear a protection cup like baseball and martial arts fighters do... :)
I am not shy and have no problem with that. Just be aware that I sanitize my hands by soaking them in the cooler. :eek:

SSDiv6 03-26-2013 03:11 PM
Re: Interesting new Rule coming in 2014
 
Quote:
Originally Posted by A56 (Post 375234)
Ironicly , I have just put together a collectors this morning with one A/B ovelapping tab kit, one spring tab kit, and one Wing style tab kit. Im going to ask Bruce if we can use the Wing style tab as the final safety device instead of the Lokar system. We all have either spring tabs or A/B tabs. The Wing tab kit would work as a final safety device, but this up to NHRA. Im bringing this collector with tab kits installed to Vegas with me, so wish me luck .... im goin in ....

Mark Lelchook
F/SA D/ED
From a technical perspective, due to the amount of the tab area that is welded to both the collector and header, wing style tab and the spring style tab would be the strongest.

FED 387 03-26-2013 04:59 PM
Re: Interesting new Rule coming in 2014
 
I'm no techie but what do you think of the possibility of all the welds/bolts/springs/tabs/wing nuts in Mark's design failing ? REMOTE comes to mind !!!! The tether system as it appears totally eliminates "any" possibility of the exhaust system coming loose when installed & maintained properly and falling on the track that is the argument NHRA is probably gonna use whereas any one or all of Marks fastening devices "could" fail ( highly unlike that ALL would) and let the exhaust loose on the track--FED387


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