Muffs...

[Chuck Leeper]

Looking to add a single muff to the turbo LS project.
Have a 4" dp, and am adding a dump pipe just behind the ft wheel. I am debating on a 3" off that 4" dump, to a 3" in/out muff/short tail pipe, out in ft of rear wheel, or a 4" muff/tail pipe.

NE1 have experience with 4" muffs and how well they work/sound, [or don't]?? [Looks like many are shown as diesel muffs, in the Summit catalog.]

 

[Howling Mad]

Please tell me you mean mufflers and not muff because right now this sounds terrible...

 

[aminga]

In for all the muff jokes to follow

 

[rmar]

Muff divers motto......We dive for 5. no muff to tough.

 

[Chuck Leeper]

Muff divers motto......We dive for 5. no muff to tough.

Absolutely!!
The champ here... go down further, stay down longer, come up drier than anyone....

"Please tell me you mean mufflers and not muff because right now this sounds terrible..." Ya, it's mufflers. Sorry to disappoint you!

 

[Howling Mad]

If that's the case this muff diver is out.

In for all the muff jokes to follow

Aint nothing funny about muff boy.

 

[earlbrown]

I'm still glad shaved is in style.

 

[Howling Mad]

I'm still glad shaved is in style.

Indeed.

 

[87_we4]

If you go from 4" to 3" your gonna choke your exhaust down. put a lot of back pressure in your exhaust. It will hurt performance

Posted from the TurboBuick.Com mobile app

 

[Pittsburghkid]

 

[Howling Mad]

Like I said ain't nothing funny about muffs.

 

[Chuck Leeper]

If you go from 4" to 3" your gonna choke your exhaust down. put a lot of back pressure in your exhaust. It will hurt performance

Posted from the TurboBuick.Com mobile app

I'm sure there is some loss. The dump pipe would be there to avoid that, should the "need arise". My concern is noise w/ a 4" MUFFLER..

Posted from the PC on my desk.

 

[Chuck Leeper]

I'm still glad shaved is in style.

My "championship" was won way before that was in style. Sure am glad, too. Whisker burn is painful!

 

[earlbrown]

They're probably called diesel mufflers just because of the size with no other changes in architecture. Give some thought to getting a 5" in/out and use reducers to hook it to your 4" system. That should make the muffler almost invisible to flow. Plus, if you don't like the sound you can fab up some sort of 'anti reversion' cone and stick it inline.

 

[rmar]

My "championship" was won way before that was in style. Sure am glad, too. Whisker burn is painful!

Isn't technology wonderful.... Just think of the score you would have got with today's style.

 

[John Larkin]

I have a single shot now but it's 3" with one 3" offset/offset muffler with quite a bit of baffling inside just in front of the rear axle. I can see daylight through it but there is alot of perforated metal in there to quieten things down. It is a Summit house-brand muffler. There is a little drone but it's not bad considering it's a performance system.
You might have to consider using a Y-pipe off your DP and use two smaller mufflers to accomplish your goal.
I am encouraged lately by reading about the J pipes people are using (helmholtz resonators) to reduce or eliminate drone. Many of them are right before the exhaust tip and there are claims of it working quite well.