noise level for GTWC?

[cleavr1]

Have a track that limits noise level to 99dBA at 30 feet. My guess is the Panoz GTWC is well over this. Any confirming infomation?

[Dawgfan]

I have had problems at Road Atlanta with SCCA. I am running headers on my 4.6 and have had numbers to go as high as 104. The noise maching is placed on the back stretch and if I ran close to the wall on the side the sound people were on the number went down to 102+. The limit at R A is 103. I went and talked to the 2 gentlemen and that might have helped but not sure. I have to admitt they were very very nice about it.

[sfbond]

" I am running headers on my 4.6 and have had numbers to go as high as 104. "

Are you headers custom built or have you adapted off the shelf units? Everyone I talk to quotes around $3k for custom headers on the GTWC.

[Dawgfan]

I had a guy give me the headers. I can't tell you how much they help but it seems like they do.

[g8rbob]

Glen and I installed some high flow Flowmasters (FLO-942550)- mostly for our own sanity - but the effect is still a nice exhaust note and even the Roebling Road Sunday Sound Police have passed us on.

[David Eastman]

I think Roebling sound level is 104db. There was another gtwc car there last year with stock exhaust and they didn't have a problem with the sound police. It must be the echo from the wall at RA.

David

[Panoz26]

Heck, Road Atlanta is tough - they black flagged me in my M3 -- my trick to quiet down the Panoz and still keep the "throaty" tune - drop an LS1 in - it's amazingly quieter than the Ford Motor.

[panozracing]

:sarcasm1:

bring that bowtie around my parts and we will all see how that LS1 purrs like a kitten behind the ROAR of a LION!!!

Blue oval BABY!

LMAO....like I really care but why not stir the pot!!!!

Whos coming to Winterfest to hear the lion? thinking about running no mufflers for more effect! I have the bi-pass tubes why not?

[Craig245]

Originally Posted by cleavr1

Have a track that limits noise level to 99dBA at 30 feet. My guess is the Panoz GTWC is well over this. Any confirming infomation?

My 347 with 450hp made 96 dB at Laguna Seca last December. I was using a 2 1/2" tubing DynoMax Super Turbo muffler. I didn't notice any loss of hp. The bad news is that the limit was 92 dB.

Disclaimer- The above is only a single example and may not represent all conditions. Your results may differ.

Craig