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-   -   NHRA Super Gas Muffler requirements (https://www.racingjunk.com/forums/showthread.php?t=21209)

prhjf 06-26-2008 12:47 PM

NHRA Super Gas Muffler requirements
 
I am building a super gas car and I would like to buy a muffler insert to put into my header collector. I want the muffler insert that will pass the NHRA sound requirements guaranteed no questions. Anybody got any recommendations?

hammertime 06-26-2008 01:02 PM

Re: NHRA Super Gas Muffler requirements
 

Originally Posted by prhjf
I am building a super gas car and I would like to buy a muffler insert to put into my header collector. I want the muffler insert that will pass the NHRA sound requirements guaranteed no questions. Anybody got any recommendations?


http://www.afabcorp.com/AFCO_Dynatec...rtex_conesonly

prhjf 06-27-2008 12:13 AM

The Dynatech Vortex cones will pass tech with no problems?

Thanks Hammertime

hammertime 06-27-2008 03:20 AM


Originally Posted by prhjf
The Dynatech Vortex cones will pass tech with no problems?

Thanks Hammertime

If you are unsure contact your div tech director but they are good around here

sg1586 06-27-2008 04:13 AM

NHRA has looked to see if you have somekind of muffling but have never seen or heard of them checking for sound with a meeter !!!!!!

prhjf 06-27-2008 06:36 PM

Hammertime,

I checked with Ben Wilson Div 7 tech director and he would not recommend any brand or type. He suggested I talk with some of the other supergas guys to find out what they are using that passes tech.

prhjf 06-27-2008 06:38 PM

sg1586,

What type of muffler do you use?

sg1586 06-27-2008 07:27 PM


Originally Posted by prhjf
sg1586,

What type of muffler do you use?




The Vortex cones from Dynatech...There easy to install and cheep compaired to some of the other ones out there....

prhjf 06-27-2008 08:22 PM

sg1586,

No Problems with the noise and the tech guys?

sg1586 06-28-2008 05:28 AM


Originally Posted by prhjf
sg1586,

No Problems with the noise and the tech guys?




Nope......If you have the budget get the Danatech collector mufflers if your worried about it........


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