Exhaust Sound DB

HessiaN257 · March 6th, 2008, 03:34 PM

In class today I learned about sound DB and the threshold of pain. ect...
It brought a spark to my mind to wonder how many DBs my exhaust, and other types of exhaust pump out.

Anyone test this or have a link to where some of this stuff is?

And can someone with knowledge put an estimate on sound DB of my exhaust, Pypes O/R X into a MAC Catback.

workinprogress · March 6th, 2008, 03:48 PM

i would guess 130db...i use do to stereo stuff so im familiar with the db levels and threshholds and what not, to down to radio shack and pick up a db meter...lik $50

TheBusher · March 6th, 2008, 03:50 PM

Originally Posted by workinprogress

i would guess 130db...i use do to stereo stuff so im familiar with the db levels and threshholds and what not, to down to radio shack and pick up a db meter...lik $50

Not even close... 130 dB is OUTRAGEOUSLY loud

It MIGHT be that high if you had a bad ass exhaust and put your ear right on the exhaust tip.

frenchysonline · March 6th, 2008, 06:05 PM

my buddy had a 71 nova ss (ran high 11s), and the mike was set 6 feet from rear of his car and hit a peak of 128 db. other friend had a stock 71 torino that hit 123 at same distance. so i wouldnt be suprised to hit 130 right by the car.

blackstang2004 · March 6th, 2008, 06:32 PM

this might help. http://www.moddedmustangs.com/forums...parisions.html

mustangmanic · March 6th, 2008, 08:06 PM

Woah!!!! 130 db!!!! thats way to damn high!!!!!!!!!

My car hits 118 db with my current setup... with an o/r x and headers i'll hit 121db's. Open headers i hit 124db (and that is extremely loud for any car). We have a meter at my speed shop.

Every 3 db increase is twice as loud to the human ear... so an example... 123 db sounds 2x louder than 120 will... only to the human ear.

My last sub setup hit 154db. I had 2 15'' MTX 9500 in a custom dual firing ported box made by me. It was set up in my 99 5.2L dakota extended cab. It was so loud that you literally couldnt breath at full rms. They were powered by 2 mtx 1501d's at 1335 watts rms each... shit was loud!

TheBusher · March 6th, 2008, 08:07 PM

Originally Posted by blackstang2004

this might help. http://www.moddedmustangs.com/forums...parisions.html

I was looking for that

Ya beat me to it lol

blackstang2004 · March 6th, 2008, 09:14 PM

Originally Posted by TheBusher

I was looking for that Ya beat me to it lol

sorry man just a little faster

TheBusher · March 6th, 2008, 09:42 PM

Originally Posted by blackstang2004

sorry man just a little faster

yeah and your nick name is probably minute man because of it right?

Black02GT · March 6th, 2008, 09:59 PM

Originally Posted by TheBusher

Not even close... 130 dB is OUTRAGEOUSLY loud

It MIGHT be that high if you had a bad ass exhaust and put your ear right on the exhaust tip.

we had hearing tests at work paid for by the company. they had us watch a video, it said that our saws which we cut fiberglass with are around 120-130 decibles. and that 5 o'clock traffic can be as high as 120 decibles as well. you'de be surprised how loud things can get. NOW after that we are REQUIRED to wear ear protection. before that day it was only an option.

TheBusher · March 6th, 2008, 10:05 PM

Originally Posted by Black02GT

we had hearing tests at work paid for by the company. they had us watch a video, it said that our saws which we cut fiberglass with are around 120-130 decibles. and that 5 o'clock traffic can be as high as 120 decibles as well. you'de be surprised how loud things can get. NOW after that we are REQUIRED to wear ear protection. before that day it was only an option.

I don't think traffic can get that loud unless you have all big V8s running open headers

Examples of sound pressure and sound pressure levels
Sound pressure - Wikipedia, the free encyclopedia

HessiaN257 · March 6th, 2008, 10:05 PM

So from that chart. it says MAC Mufflers produce 119 DB, is that simply the catback?

mustangmanic · March 6th, 2008, 10:14 PM

Originally Posted by HessiaN257

So from that chart. it says MAC Mufflers produce 119 DB, is that simply the catback?

it doesnt get specific. It says on the chart that the car has a ton of hp... so it has to have an aftermarked mid.

drazga97 · March 6th, 2008, 10:19 PM

i know dirtbikes are usually in the high 90s so id expect our cars to be around there stock and alot more with o/r pipes

mustangmanic · March 6th, 2008, 10:24 PM

Originally Posted by drazga97

i know dirtbikes are usually in the high 90s so id expect our cars to be around there stock and alot more with o/r pipes

dirtbikes are MUCH louder than a stock gt lol

TheBusher · March 6th, 2008, 10:26 PM

Originally Posted by mustangmanic

dirtbikes are MUCH louder than a stock gt lol

+1 THOSE THINGS ARE LOUD!

mustangmanic · March 6th, 2008, 10:26 PM

Stock gt's are so damn quite lol

TheBusher · March 6th, 2008, 10:29 PM

Originally Posted by mustangmanic

Stock gt's are so damn quite lol

I know, what a load eh? Even the termi for being a 400+ HP beast is fairly subdued.

mustangmanic · March 6th, 2008, 10:34 PM

Originally Posted by TheBusher

I know, what a load eh? Even the termi for being a 400+ HP beast is fairly subdued.

i know lmao... the only good sounding stock stang to ever come out are the saleens and the bullit

March 6th, 2008, 03:34 PM	#1
HessiaN257 Enthusiast 2000 Mustang GT 13.9@101 Join Date: Feb 2007 Location: New Jersey Posts: 805 iTrader: 0 reviews	Exhaust Sound DB In class today I learned about sound DB and the threshold of pain. ect... It brought a spark to my mind to wonder how many DBs my exhaust, and other types of exhaust pump out. Anyone test this or have a link to where some of this stuff is? And can someone with knowledge put an estimate on sound DB of my exhaust, Pypes O/R X into a MAC Catback. __________________ 13.9@101 before some mods

March 6th, 2008, 06:05 PM	#4
frenchysonline Newbie 2000 Mustang GT Join Date: Nov 2006 Location: WA Posts: 21 iTrader: 0 reviews	my buddy had a 71 nova ss (ran high 11s), and the mike was set 6 feet from rear of his car and hit a peak of 128 db. other friend had a stock 71 torino that hit 123 at same distance. so i wouldnt be suprised to hit 130 right by the car. __________________ 2000 GT Bassani X-Pipe and Xhaust 3.73s BBK CAI FMS C Springs Diablo II Tune

March 6th, 2008, 06:32 PM	#5
blackstang2004 Regular 2004 Mustang GT Join Date: Feb 2008 Location: Albany, KY Posts: 310 iTrader: 0 reviews	this might help. http://www.moddedmustangs.com/forums...parisions.html __________________ DD-2002 Tacoma 4x4 2004 Mustang GT- sold "will be missed"

March 6th, 2008, 08:06 PM	#6
mustangmanic MM Fanatic 2002 Mustang GT 13.334 @ 106.27 w/2.01 60' Join Date: May 2007 Location: Indianapolis Posts: 3,108 iTrader: 2 reviews	Woah!!!! 130 db!!!! thats way to damn high!!!!!!!!! My car hits 118 db with my current setup... with an o/r x and headers i'll hit 121db's. Open headers i hit 124db (and that is extremely loud for any car). We have a meter at my speed shop. Every 3 db increase is twice as loud to the human ear... so an example... 123 db sounds 2x louder than 120 will... only to the human ear. My last sub setup hit 154db. I had 2 15'' MTX 9500 in a custom dual firing ported box made by me. It was set up in my 99 5.2L dakota extended cab. It was so loud that you literally couldnt breath at full rms. They were powered by 2 mtx 1501d's at 1335 watts rms each... shit was loud! __________________

March 6th, 2008, 10:05 PM	#12
HessiaN257 Enthusiast 2000 Mustang GT 13.9@101 Join Date: Feb 2007 Location: New Jersey Posts: 805 iTrader: 0 reviews	So from that chart. it says MAC Mufflers produce 119 DB, is that simply the catback? __________________ 13.9@101 before some mods

March 6th, 2008, 10:19 PM	#14
drazga97 Noob Slayer 2004 Mustang GT 13.82 @ 101.09 Join Date: Oct 2007 Location: New Jersey Posts: 2,466 iTrader: 1 reviews	i know dirtbikes are usually in the high 90s so id expect our cars to be around there stock and alot more with o/r pipes __________________ 2003 Black Cobra 10th Anniversary 2.8 Kenne Bell Mammoth LC - Built SRA - T56 - E85 - Spray - Stock Longblock - True Forged Mach 5s 2004 Silver GT 5 speed - SOLD MM Cobra Club Member# 97

March 6th, 2008, 10:26 PM	#17
mustangmanic MM Fanatic 2002 Mustang GT 13.334 @ 106.27 w/2.01 60' Join Date: May 2007 Location: Indianapolis Posts: 3,108 iTrader: 2 reviews	Stock gt's are so damn quite lol __________________

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