Show off your muffler mods

[Wilhelm]

Aren't You guys overdoing it a little with those extremely opened mufflers?!

Don't get me wrong, I love my mildly MMed PS-7300/7310/7900, but sometimes I really appreciate my stock PS-550/6400.
Firing up my XS5000 & MMWS6100 gives me a scare whenever I haven't ran them for a while.

There was a thread about it, when does a more open muffler result in more noise than power gain?

I personally prefer the "stock look", and I want screens to prevent anything from finding its way inside the muffler and consequently inside the engine.

 

[huskyboy]

when does a more open muffler result in more noise

I found around 125-130% the opening of the exhaust port depending on the few saws I tried it on. But I’m just a hack. Dunno anything I guess lol. Results are gonna vary and opinions too. I too like to have to have screens of some sort in my saws like you. If someone asks me to not put a screen in there muffler or they want a more open muffler mod with lots of outlets/area that’s cool. It’s there saw.

 

[Moparmyway]

1. Aren't You guys overdoing it a little with those extremely opened mufflers?!

2. Don't get me wrong, I love my mildly MMed PS-7300/7310/7900, but sometimes I really appreciate my stock PS-550/6400.
Firing up my XS5000 & MMWS6100 gives me a scare whenever I haven't ran them for a while.

3. There was a thread about it, when does a more open muffler result in more noise than power gain?

4. I personally prefer the "stock look", and I want screens to prevent anything from finding its way inside the muffler and consequently inside the engine.

1. Whats your favorite color ? Whats your favorite food to eat ?

2. I dont run any 2 cycle thats stock, chainsaws scare me too (its nothing to be ashamed of)

3. There have been many threads about it, one specifically had the "no cover" muffler mod and another one had the "corn can" muffler mod as being the most powerfull

4. I personally preferr to breathe fresh clean air, how that happens and why that happens is what makes candy and nuts such a wonderfull subject to discuss. But, to satisfy most people (including you) here is the testing plan ................



This particular MoFo had the stock muffler on it when it arrived. Doc didnt want to give me the saw without muffler modding it because he ran it with the stock muffler, and it was held back significantly. So he ran it with his own muffler from his own 261 to be sure it wasnt a turd (I'm pretty sure that he's never built any turd) before he let outta his paws.

To me, its pretty simple:
1. I want to breathe clean air
2. I'll run the muffler that makes the saw run the best
3. I like the dual nostrils, makes them more snotty
4. I wear ear plugs no matter what I run
5. Noise fills the silence

 

[RI Chevy]

Larger exhaust ports also get heat out faster and more efficiently.
Go big or go home.

 

[Wilhelm]

I found around 125-130% the opening of the exhaust port depending on the few saws I tried it on. But I’m just a hack. Dunno anything I guess lol. Results are gonna vary and opinions too. I too like to have to have screens of some sort in my saws like you. If someone asks me to not put a screen in there muffler or they want a more open muffler mod with lots of outlets/area that’s cool. It’s there saw.

1. Whats your favorite color ? Whats your favorite food to eat ?

2. I dont run any 2 cycle thats stock, chainsaws scare me too (its nothing to be ashamed of)

3. There have been many threads about it, one specifically had the "no cover" muffler mod and another one had the "corn can" muffler mod as being the most powerfull

4. I personally preferr to breathe fresh clean air, how that happens and why that happens is what makes candy and nuts such a wonderfull subject to discuss. But, to satisfy most people (including you) here is the testing plan ................

View attachment 251843 View attachment 251844

This particular MoFo had the stock muffler on it when it arrived. Doc didnt want to give me the saw without muffler modding it because he ran it with the stock muffler, and it was held back significantly. So he ran it with his own muffler from his own 261 to be sure it wasnt a turd (I'm pretty sure that he's never built any turd) before he let outta his paws.

To me, its pretty simple:
1. I want to breathe clean air
2. I'll run the muffler that makes the saw run the best
3. I like the dual nostrils, makes them more snotty
4. I wear ear plugs no matter what I run
5. Noise fills the silence

Larger exhaust ports also get heat out faster and more efficiently.
Go big or go home.

Not implying any of it to be wrong, especially on a ported saw!

I was just wondering how much of it is a placebo effect having back pressure in mind.

I recently had a 038 in my hands, poor performer stock, freaking strong screamer without the mufflers front cover - I was shocked.
Long story short:
- saw ran a very poorly filed chain nearing its end of life, I filed it to my Archer FastFiler jig and set rackers to it too
- with stock muffler the saw pulled the loop fairly well in turkey oak (very dense oak species), but felt underwhelming
- after removing the mufflers front cover I re-set the rackers two more times taking off two file strokes each time - the saw asked for more
- obviously the saw can not be run in any decent manner without the front cover so with the consent of the owner I gave the saw a mild muffler mod - it yielded a noticeable gain without sacrificing comfort

Similar story with my PS-7310, as long as she featured the SLR she felt underwhelming, once the SLR got removed and stock outlet opened she became my favorite sounding and performing saw.

Didn't mean to offend anyone, was just thinking out loud so to speak.

Cheers

 

[RI Chevy]

Only real way for you to really know is to experiment. Different size openings yield different results. Til you reach that point of diminishing returns. Then cut back a little.
I imagine each saw brand maybe be a little different.
It's all good conversation Wilhelm. [emoji106]

 

[qurotro]

Not implying any of it to be wrong, especially on a ported saw!

I was just wondering how much of it is a placebo effect having back pressure in mind.

I recently had a 038 in my hands, poor performer stock, freaking strong screamer without the mufflers front cover - I was shocked.
Long story short:
- saw ran a very poorly filed chain nearing its end of life, I filed it to my Archer FastFiler jig and set rackers to it too
- with stock muffler the saw pulled the loop fairly well in turkey oak (very dense oak species), but felt underwhelming
- after removing the mufflers front cover I re-set the rackers two more times taking off two file strokes each time - the saw asked for more
- obviously the saw can not be run in any decent manner without the front cover so with the consent of the owner I gave the saw a mild muffler mod - it yielded a noticeable gain without sacrificing comfort

Similar story with my PS-7310, as long as she featured the SLR she felt underwhelming, once the SLR got removed and stock outlet opened she became my favorite sounding and performing saw.

Didn't mean to offend anyone, was just thinking out loud so to speak.

Cheers

The 038 euro single port muffler? If so, I have one. Only the front cover has a hole. And there's a baffle behind the hole. I can't breath through it. Not mentioning the saw.

 

[huskihl]

I like the @mdavlee mod. Claw hammer to the front cover and done.

 

[Wilhelm]

The 038 euro single port muffler? If so, I have one. Only the front cover has a hole. And there's a baffle behind the hole. I can't breath through it. Not mentioning the saw.

This 038 has 3-slot gills with a baffle behind them, also birdcage baffle on the cylinder half.
That muffler is/was really flow restricted.

 

[Wilhelm]

I like the @mdavlee mod. Claw hammer to the front cover and done.

If it's that good why doesn't my XS5000 feature that mod!
I want my saws muffler fixed!
Send me Your claw hammer and I'll do it myself.

 

[RI Chevy]

Shark Gills!

 

[Moparmyway]

Didn't mean to offend anyone, was just thinking out loud so to speak.

Offense ??
It’s all candy & nuts!

IMHO, there is no wrong way, just a right way, the way each person sees fit for their saw(s)

 

[Kiwioilboiler]

Another @Red97 Large. This time on a 372 open box. 16mm outlet and s/s screen. VHT ceramic header paint.

These deflectors are the perfect guage. Strong, but malleable. I likey.

 

[ferris]

1. Whats your favorite color ? Whats your favorite food to eat ?

2. I dont run any 2 cycle thats stock, chainsaws scare me too (its nothing to be ashamed of)

3. There have been many threads about it, one specifically had the "no cover" muffler mod and another one had the "corn can" muffler mod as being the most powerfull

4. I personally preferr to breathe fresh clean air, how that happens and why that happens is what makes candy and nuts such a wonderfull subject to discuss. But, to satisfy most people (including you) here is the testing plan ................

View attachment 251843 View attachment 251844

This particular MoFo had the stock muffler on it when it arrived. Doc didnt want to give me the saw without muffler modding it because he ran it with the stock muffler, and it was held back significantly. So he ran it with his own muffler from his own 261 to be sure it wasnt a turd (I'm pretty sure that he's never built any turd) before he let outta his paws.

To me, its pretty simple:
1. I want to breathe clean air
2. I'll run the muffler that makes the saw run the best
3. I like the dual nostrils, makes them more snotty
4. I wear ear plugs no matter what I run
5. Noise fills the silence

Where is the test video?

 

[Moparmyway]

Where is the test video?

Been too hot for me to run saws ...... been swimming in the lake instead. Probably going to be running them this weekend

 

[mdavlee]

I like the @mdavlee mod. Claw hammer to the front cover and done.

Crude but effective is my style[emoji23]

 

[RI Chevy]

Musta been hacked up by a hill billy?

 

[Canadian farm boy]

550xp markII with a Red97 medium sized deflector

 

[cuinrearview]

550xp markII with a Red97 medium sized deflectorView attachment 251965View attachment 251966View attachment 251967

@Duce

 

[RI Chevy]

Nice work Mike. Muffs getting smaller and thinner...