High Quality Chainsaw Bars Husqvarna Toys

Part Six: The Exhaust System

big t double

You can call me Teddy Eastwood.....
Local time
3:35 PM
User ID
372
Joined
Jan 1, 2016
Messages
1,359
Reaction score
6,985
Location
.
1894c6a59950d5f0a56bf4fc503f6bb3.jpg

How do I muff mod this?


Sent from my iPhone using Tapatalk
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.
 

Dub11

Saw R skeery
GoldMember
Local time
3:35 PM
User ID
2014
Joined
Oct 21, 2016
Messages
34,438
Reaction score
146,038
Location
Kansas
Country flag
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

Saw R skeery
GoldMember
Local time
3:35 PM
User ID
2014
Joined
Oct 21, 2016
Messages
34,438
Reaction score
146,038
Location
Kansas
Country flag
And on a high flow but quite baffling I was thinking this? Its not to any scale and would probably be a royal pita.
 

Attachments

  • 1494400392522547034770.jpg
    1494400392522547034770.jpg
    47.4 KB · Views: 40

MattG

Chainosaurus Rex
Local time
8:35 PM
User ID
3111
Joined
Apr 30, 2017
Messages
896
Reaction score
1,432
Location
Cambridgeshire, England
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.
 
Last edited:

Al Smith

Here For The Long Haul!
Local time
4:35 PM
User ID
537
Joined
Jan 14, 2016
Messages
6,095
Reaction score
13,457
Location
North western Ohio
Country flag
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 .
 
Top