Exhaust too loud for track? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Alex Murphy · 03-13-2018, 05:25 PM

I have already paid to go to Track Night in America at Lime Rock park in CT. The I found out that there is a sound rule. Your car has to be under 86db at 50 feet away. I have long tube headers, high flow cats and solo performance mach X catback. Do you think I will have a problem?

If so, any ideas on the best easy way to quiet it down enough?

Rob Russell · 03-13-2018, 11:12 PM

I would say yes.. if I had to guess most camaro’s with aftermarket exhausts at 50ft away would be about 90-100db?I know a lawn mower from 100ft away is around 65-70db

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pyroguy · 03-14-2018, 05:51 AM

Yep, you're probably screwed. I have Solo's Mach XL catback with long tubes and cats which has minimally more muffling than their Mach X. If you're only idling you'll probably be fine, but if there's much or any throttle you're done for.

Alex Murphy · 03-17-2018, 08:22 AM

Yeah. I figured it wouldnt be good. I emailed the them to see if I could get a refund for the track event and bought a cheap db meter on Amazon. I will keep you posted on how loud it is.

Bretts · 03-17-2018, 11:57 AM

exhaust tip turn downs an option?

Alex Murphy · 03-17-2018, 03:40 PM

Quote:

Originally Posted by Bretts

exhaust tip turn downs an option?

Maybe. How much does that quiet it?

Bretts · 03-17-2018, 10:10 PM

not sure just thinking i will need to address the same issues

christianchevell · 03-18-2018, 09:42 AM

It about when....when at idle or when at WOT screaming down the track.....

DSMer1 · 03-18-2018, 09:55 AM

Do they officially test it?
If so, what are the parameters of the test?

Alex Murphy · 03-18-2018, 11:12 AM

I haven't been there yet but, from what I have read, believe there is someone in a booth 50 feet from the track measuring the db. If its over 86 your flagged.

Alex Murphy · 03-18-2018, 11:14 AM

Quote:

Originally Posted by Bretts

not sure just thinking i will need to address the same issues

Are you going to Lime Rock? This is a Lime Rock specific rule. Other tracks may have similar though.

Iron Lung Jimmy · 03-18-2018, 05:23 PM

Just lift when you go past the sound meter.

BLU DUCE · 03-18-2018, 07:54 PM

Wouldn't do me any good to go there. I have long tube headers high flow cats CAI different TB Dyno tune. Plus I run with my QTP cutouts open.

Olddudesrule · 03-18-2018, 09:55 PM

Quote:

Originally Posted by Iron Lung Jimmy

Just lift when you go past the sound meter.

Not an option. I deal with this out west, and they will flag you if you lift at the sound station.....

03-13-2018, 05:25 PM	#1
Alex Murphy Drives: 2012 Camaro 2SS/RS M6 Join Date: Feb 2016 Location: Saugerties, NY Posts: 125	Exhaust too loud for track? I have already paid to go to Track Night in America at Lime Rock park in CT. The I found out that there is a sound rule. Your car has to be under 86db at 50 feet away. I have long tube headers, high flow cats and solo performance mach X catback. Do you think I will have a problem? If so, any ideas on the best easy way to quiet it down enough?

03-14-2018, 05:51 AM	#3
pyroguy Started#gottalovethatblue Drives: ABM #831 Join Date: Apr 2013 Location: TN Posts: 6,919 View My Garage	Yep, you're probably screwed. I have Solo's Mach XL catback with long tubes and cats which has minimally more muffling than their Mach X. If you're only idling you'll probably be fine, but if there's much or any throttle you're done for. __________________ '10 Camaro 2SS/RS \| Aqua Blue #831 of 3,903 \| Silver Stripes Check out my build thread

03-17-2018, 11:57 AM	#5
Bretts SS Drives: 2015 2ss rs Join Date: Oct 2014 Location: Alberta Posts: 911 View My Garage	exhaust tip turn downs an option? __________________ CCW sp16a track set, BTR stage 3 cam and kooks longtubes with high flow catsLocks@7.5 degrees castor and radius arm inserts, Ride Tech 2coilovers JDP upper control arm bushings BMR lower knuckle bushing Bo White throttle body3.91 gears Spohn del-sphere toe link and trailing arms Prothane subframe bushings

03-17-2018, 10:10 PM	#7
Bretts SS Drives: 2015 2ss rs Join Date: Oct 2014 Location: Alberta Posts: 911 View My Garage	not sure just thinking i will need to address the same issues __________________ CCW sp16a track set, BTR stage 3 cam and kooks longtubes with high flow catsLocks@7.5 degrees castor and radius arm inserts, Ride Tech 2coilovers JDP upper control arm bushings BMR lower knuckle bushing Bo White throttle body3.91 gears Spohn del-sphere toe link and trailing arms Prothane subframe bushings

03-18-2018, 09:42 AM	#8
christianchevell old school chevy rodder Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012 Location: Oregon Posts: 5,587 View My Garage	It about when....when at idle or when at WOT screaming down the track..... __________________ 2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop

03-13-2018, 11:12 PM	#2
Rob Russell Drives: 2014 Camaro SS L99 Join Date: Dec 2016 Location: Baytown, TX Posts: 92	I would say yes.. if I had to guess most camaro’s with aftermarket exhausts at 50ft away would be about 90-100db?I know a lawn mower from 100ft away is around 65-70db Sent from my iPhone using Tapatalk

03-17-2018, 08:22 AM	#4
Alex Murphy Drives: 2012 Camaro 2SS/RS M6 Join Date: Feb 2016 Location: Saugerties, NY Posts: 125	Yeah. I figured it wouldnt be good. I emailed the them to see if I could get a refund for the track event and bought a cheap db meter on Amazon. I will keep you posted on how loud it is.

03-18-2018, 09:55 AM	#9
DSMer1 Drives: 14 and 15 SS's Join Date: Feb 2018 Location: Minneapolis, Minnesota Posts: 387	Do they officially test it? If so, what are the parameters of the test?

03-18-2018, 11:12 AM	#10
Alex Murphy Drives: 2012 Camaro 2SS/RS M6 Join Date: Feb 2016 Location: Saugerties, NY Posts: 125	I haven't been there yet but, from what I have read, believe there is someone in a booth 50 feet from the track measuring the db. If its over 86 your flagged.

03-18-2018, 05:23 PM	#12
Iron Lung Jimmy Drives: Iron Lung, Jimmy Join Date: Jun 2009 Location: Louisiana Posts: 1,449	If you can't get your money back Just lift when you go past the sound meter.

03-18-2018, 07:54 PM	#13
BLU DUCE Drives: 2011 1SS/RS IBM Camaro Join Date: Jan 2011 Location: Chittenango, NY, USA Posts: 7,219 View My Garage	Wouldn't do me any good to go there. I have long tube headers high flow cats CAI different TB Dyno tune. Plus I run with my QTP cutouts open. __________________