Show off your muffler mods

[Miller Mod Saws]

Anyone got any quick tips for opening up the muffler on an echo 501p? @Miller Mod Saws, @Red97 can either of you guys give me the low down? A buddy of mine just bought one and after running my ported 350/346 and 261 he wants to pursue a louder saw. A little more power would be okay too.

Just wondering if I need to uncrimp the muffler and empty out the guts or if I can just take off that goofy cover and cut a big hole. Any help would be appreciated. Also, I just took a quick look, but it looks like a drywall screw will take care of the carb limiters. Am I missing anything there?

Well I would link ya to my build thread but @RedFir Down has got it covered.

 

[RedGas]

That hole looks a little small....

It's almost the same diameter as the large hole on the other side of the muffler.

Maybe I'll unbraze it and rebraze a bigger pipe in its place...if there's room...one concern was not interfering with the brake lever...

 

[Deets066]

It's almost the same diameter as the large hole on the other side of the muffler.

Maybe I'll unbraze it and rebraze a bigger pipe in its place...if there's room...one concern was not interfering with the brake lever...

Brake lever still works on this one

 

[Chainsaw Jim]

All bolted up. Now I just need to weld on the platform and a support bracket under the belly.

 

[p61 western]

All bolted up. Now I just need to weld on the platform and a support bracket under the belly. View attachment 127452

Oh wow can't wait till the next video Jim.

 

[RedGas]

Pretty nice sculpture...like some kind of rampant sea monster with tyrannosaurus teeth

 

[merc_man]

Ya nameing her nessie?

All bolted up. Now I just need to weld on the platform and a support bracket under the belly. View attachment 127452

Sent from my SM-J320W8 using Tapatalk

 

[Chainsaw Jim]

Ya nameing her nessie?

Sent from my SM-J320W8 using Tapatalk

I haven't really thought of a name, but I do think it needs one.

 

[redlight066]

Just rebuilt a 2101xp. I cut this out of an old husky 61 muffler. Custom jungle muffler/dual port. Tig welded it in place and a little high temp paint.

 

[redlight066]

Finished saw. This belongs to a friend of mine. It's been on the shelf for a while. Randy knows it's finished just hasn't seen it yet. I've got some pics of the build I'll be posting in the brand specific thread

 

[Canadian farm boy]

Stihl 034 muffler that's going on a 034 with a ported 036 pro top end. Gotta love those @Red97 muffler deflectors. I used 1 small size and 1 medium size deflector and some #10 stainless screen.

 

[RI Chevy]

Nice job Mike.

 

[GCJenks204]

Stihl 034 muffler that's going on a 034 with a ported 036 pro top end. Gotta love those @Red97 muffler deflectors. I used 1 small size and 1 medium size deflector and some #10 stainless screen.View attachment 138811View attachment 138812 View attachment 138813View attachment 138814View attachment 138815

Looks even better than when you sent them to me earlier. Can’t wait to see that thing run.

 

[Canadian farm boy]

Looks even better than when you sent them to me earlier. Can’t wait to see that thing run.

Thanks Gary. I'm anxious to get it done. It should be an angry little beast once it's finished.

 

[TreeLife]

Nice resurrection post, CFB!

 

[2000ssm6]

Decided to try a Lakeside 361 style muff mod on my 261 since I have a lot of the 9/16" pipe left over. The weld went much better than I thought using my pro mig 140, only burned through a few times and I was able to fill them. The idea behind this mod was using this specific pipe, you can add a spark screen that is used on a TS400, very easy. Part numbers; screen - 4223 141 9000, clip - 4223 141 6600. Not sure if I will ever add one but the saw runs better.

 

[RI Chevy]

1 is good. 2 is better. LOL
Nice job. It looks good.

 

[10/80]

I'm sure someone can work out a way of fitting a bar & chain to this thing.

 

[RedGas]

Well, I un-brazed and re-brazed a bigger piece of steel tubing on my 660.
Also tigged on a "V" shaped piece of silicon bronze filler to hold a cone of stainless steel screen inside...

Exhaust port is about 0.944 in²
Net free area on muffler is now about 0.703 in² which works out to about 74% of the port area. Runs stronger and burns more gas.
Bought this AM saw on ebay from a builder in B.C. who upgraded the P&C, clutch and crank, and have been very happy with it.

 

[SOS Ridgerider]

Dolmar 421 muffler mod. It was already gutted, and opened under the stock deflector. I decided more is better, and did this.