Saw noise and muffler mods

[svk]

Maybe I don't get that aggressive with my mods. I just gut them and open up the exit hole a bit more. I've seen the pics online where people cut huge holes into the muffler that's got to be loud. I can't imagine it adds much more performance just noise.

From my limited experience the placement of outlet makes a huge difference too. My 550 is much quieter with a top exit compared to the same saw with a big hole out the front.

Nick @mortalitool did a couple nice muffler mods for my other saws with a 1/2" pipe outlet brazed in that could be run without muffs. Single outlet for the smaller saws and double for the larger one.

 

[Mustang71]

Yea all mine are loud but not to loud. I always thought on a 2 stroke you needed that expansion chamber in the exhaust. That's how it was when I was a kid with atvs and dirt bikes. The straight through design I don't think does much but idk.

 

[Sportfury70]

I can tell you my cs590 is loud as #### with the MM. Huge difference over stock, but worth it as it'll (barely) pull a 24" now. Asked my neighbors if it's irritating, they said they like seeing me out and taking care of my property, so no worries.

 

[astnmacgto]

All my saws breath better than they ever did, my mac 10 series saws are still louder than my muff modded ones.

My neighbors know what I do and they don't care because they know where to go when they need help.

I did a louvered muff mod on my Poulan 365 today, the muffler goes straight through and so I louvered it in the front to where the exhaust flows straight out of it at an angle, it was running a very liberal and loud mod before and this actually is a little quieter and it had to be retuned to give more fuel, I was very happy

 

[James Miller]

I can tell you my cs590 is loud as #### with the MM. Huge difference over stock, but worth it as it'll (barely) pull a 24" now. Asked my neighbors if it's irritating, they said they like seeing me out and taking care of my property, so no worries.

My ported 590 has a serious pop more like a crack at idle. Its loud but not stupid loud like when guys just cut the tube out. Still won't run it in town again.

 

[bang]

There are no houses within a half mile of me and everyone within earshot runs a chainsaw. My loudest saw is a stock Homelite sxl but the most annoying to my ears (i don't use ear protection,...yes I know and I'm going to start) is a saw with the baffle removed but a stock cover. It's not excessively loud, just leaves my ears ringing a little.