Muffler Impact on Engine Dyno Performance

jrstock · 02-06-2015, 11:03 PM

I am considering installing an engine dyno in a semi rural location where noise may be a concern. I am thinking about running a pair of collector mufflers on a SBC to reduce noise. I am looking at the borla mufflers that s/c dragsters typically run. Has anyone had any experience running these or other mufflers on a stock/ss car?

The borla mufflers look like an effective and cost efficient option compared to industrial silencers typically found on engine dynos. However does anyone know if, or how much, the borla type collector mufflers impact performance (hp)?

Thanks in advance for your thoughts and advice.

SSDiv6 · 02-07-2015, 01:02 PM

Quote:

Originally Posted by jrstock

I am considering installing an engine dyno in a semi rural location where noise may be a concern. I am thinking about running a pair of collector mufflers on a SBC to reduce noise. I am looking at the borla mufflers that s/c dragsters typically run. Has anyone had any experience running these or other mufflers on a stock/ss car?

The borla mufflers look like an effective and cost efficient option compared to industrial silencers typically found on engine dynos. However does anyone know if, or how much, the borla type collector mufflers impact performance (hp)?

Thanks in advance for your thoughts and advice.

Save your time and headaches; install industrial or hospital generator mufflers and be done with it.

http://www.ebay.com/itm/NEW-Industri...item5419c97b5f

Mike Taylor 3601 · 02-09-2015, 10:16 AM

Not sure what kind of dyno you have,but Superflow has good sound proof info don't remember part# but donaldson muffler is basically 5'' big truck muffler about 4' long mounted outside,having as quiet in cell as you can get the better,want clean air not filled with exhaust.
The noise complaint we always have had is the buzzing sound from the exhaust fan,
Superflow has some info of more soundproofing things you can do out side to help,we just never did them.
The mufflers superflow reccomended did not hurt power at all.
Mike Taylor 3601

02-06-2015, 11:03 PM	#1
jrstock Junior Member Join Date: Feb 2015 Posts: 16 Likes: 0 Liked 0 Times in 0 Posts	Muffler Impact on Engine Dyno Performance I am considering installing an engine dyno in a semi rural location where noise may be a concern. I am thinking about running a pair of collector mufflers on a SBC to reduce noise. I am looking at the borla mufflers that s/c dragsters typically run. Has anyone had any experience running these or other mufflers on a stock/ss car? The borla mufflers look like an effective and cost efficient option compared to industrial silencers typically found on engine dynos. However does anyone know if, or how much, the borla type collector mufflers impact performance (hp)? Thanks in advance for your thoughts and advice.

02-09-2015, 10:16 AM	#3
Mike Taylor 3601 VIP Member Join Date: Oct 2008 Location: Somerset,Ky Posts: 1,372 Likes: 355 Liked 308 Times in 103 Posts	Re: Muffler Impact on Engine Dyno Performance Not sure what kind of dyno you have,but Superflow has good sound proof info don't remember part# but donaldson muffler is basically 5'' big truck muffler about 4' long mounted outside,having as quiet in cell as you can get the better,want clean air not filled with exhaust. The noise complaint we always have had is the buzzing sound from the exhaust fan, Superflow has some info of more soundproofing things you can do out side to help,we just never did them. The mufflers superflow reccomended did not hurt power at all. Mike Taylor 3601