Part Six: The Exhaust System

[big t double]

How do I muff mod this?


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I don't know about modifying that thing that is standing in as the muffler...but I bet if you give it to your dog he'll lick the balls off it.

 

[Deets066]

I don't know about modifying that thing that is standing in as the muffler...but I bet if you give it to your dog he'll lick the balls off it.

 

[shorthunter]

View attachment 69278

Could also build a bigger SLR chamber that would suit a ported saw

 

[shorthunter]

I remember that one. Who came up with that anyway?

I believe that it came up in one of Timberwolfs threads on the other site. If you Google, muffler mod, how big is too big. You will find the thread

 

[mdavlee]

I believe that it came up in one of Timberwolfs threads on the other site. If you Google, muffler mod, how big is too big. You will find the thread

Yep. Stihl 026.

 

[Dub11]

Anything I've done with a side outlet and a flat front had made the same power and less noise.

I did buy Stainless measuring/sauce cups of varying sizes off of amazon to try in mufflers, but they won't ever be able to reflect back what a tube with an expansion chamber can.

Next for me is to cap the inside part of my outlets inside the muffler to prevent any of the exhaust from escaping the openings directly. Kinda custom baffling.

The more the exhaust pulse swirls, the more random sound wave canceling effect occurs.

Like Mason said, the volume can sometimes be close, but the sound is less irritating for some reason.

Capping the PTO side opening and forcing a front outlet can help as well.

Trying to create a quieter muffler that still flows is gonna be the next experimentation for me in saw porting. Flowmaster seems to have done a lot of baffle experimentation. I'll likely follow their leads.

Man I bought some little stainless cups at thinking the same thing but haven't had time to do anything.

 

[Dub11]

And on a high flow but quite baffling I was thinking this? Its not to any scale and would probably be a royal pita.

 

[Stump Shot]

For saws that really work, I like the outlet going out the right side

 

[Mastermind]

For saws that really work, I like the outlet going out the right side

View attachment 69411

Huh? I can't hear you....

 

[Adirondackstihl]

Huh? I can't hear you....

Good AM my southern friend

 

[Mastermind]

Good AM my southern friend

Good morning to you Jeremy.

 

[Adirondackstihl]

Good morning to you Jeremy.

It stopped snowing & the sun is out, for now.
But we're only lookin at 44 degrees

 

[MattG]

I think that a flat front helps because of wave reflection, so that's why I like side and top outlets.

From a science point of view I agree with this (that is don't have front outlets). In a post #18 in another thread, I went as far as to do some example maths to reinforce why I believe such waves to be significant. Whether they (the waves) are useful or not is another matter.

 

[Dub11]

Man I bought some little stainless cups at thinking the same thing but haven't had time to do anything.

Stainless cups. They would probably make a nice shot glass. If I still did that.

 

[RI Chevy]

I took a few photos of my Hacked up 660 muffler.
It has a big front hole in the cover with a deflector.
I count 4 ports. Lol

 

[Al Smith]

Those old Lombards with a short stack don't run fast enough to be loud . I've got two of those AH 47 engines,one on a Lombard the other on a David Bradley 360 .

 

[Chris Zautner]

I took a few photos of my Hacked up 660 muffler.
It has a big front hole in the cover with a deflector.
I count 4 ports. Lol

We need more video's of this beast!

 

[mdavlee]

I took a few photos of my Hacked up 660 muffler.
It has a big front hole in the cover with a deflector.
I count 4 ports. Lol

I didn't count those baby ports that came on that muffler. It does sound pretty good

 

[RI Chevy]

Lol. I really like it!
I will try and get more videos done.

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[Magnumitis]

[/QUOTE]

Once you get past 100% idle quality can suffer. But I've seen saws running fine with double the port area for outlet.

Yes they can