welder15725
ArboristSite Operative
you may wanna add a 5 gallon gas tank wile your at it.
first go at porting on my 660.
- Thread starter breymeyerfam
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Tzed250
Addicted to ArboristSite
Haywire Haywood
Fiscal Conservative Social Retard
If it's an 066, why not just run the factory dual port muffler cover?
Ian
Ian
Crofter
Addicted to ArboristSite
Yep, the intake side is the maximum thrust face. If you run them lean the exhaust side being the hotter is more apt to show signs of scoring but normal operation puts the wear more on the intake side.
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I once had a talk with a former saw modder here named Ken Dunn. In his day Ken was the KING of modded saws here on AS at that time. He told me that the 066 came with the hottest factory port timing there was...........don't know about the 660!!!
Ken was also a standup guy and could be taken at his word!!!
In the limited saw mods that I have done I have found that a carbide burr can take material off in a hurry especially in the hands of the unknowing. I always used a sanding disc on my Foredom!
Ken was also a standup guy and could be taken at his word!!!
In the limited saw mods that I have done I have found that a carbide burr can take material off in a hurry especially in the hands of the unknowing. I always used a sanding disc on my Foredom!
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A dual port on a stock muffler does not have to be a pipe or a ugly big hole, a second port that looks stock can be added and still use a spark screen if needed. This is on my 066.
Pioneerguy600
parrisw
Tree Freak
A dual port on a stock muffler does not have to be a pipe or a ugly big hole, a second port that looks stock can be added and still use a spark screen if needed. This is on my 066.
Pioneerguy600
That looks sweet, was it square stock, cut on an angle?
Yes both ports are the same size at 3/4" each and both deflectors are new hand made.
Pioneerguy600
parrisw
Tree Freak
Really nice work. I'm thinking I'll do something like that for my next muffler. I think I'll use square stock, cut on an angle. I really like that.
A view from the rear of the muffler, you can see how its box welded at the rear of the deflector.
Pioneerguy600
parrisw
Tree Freak
A view from the rear of the muffler, you can see how its box welded at the rear of the deflector.
Pioneerguy600
Ahh, I see, looks deceiving from the front. Looks like they are tapered.
They do look better from the front , my welding is not all that good looking.
Pioneerguy600
Pioneerguy600
parrisw
Tree Freak
Looks fine to me. I'd love to have a tig. But kinda hard to justify the cost, for what I would use it for.
The square stock would be a lot less work than bending the pieces on a finger break. Good idea if you can find the right size square stock.
Pioneerguy600
parrisw
Tree Freak
Ya, I'm going to have a look around.
breymeyerfam
Addicted to ArboristSite
A dual port on a stock muffler does not have to be a pipe or a ugly big hole, a second port that looks stock can be added and still use a spark screen if needed. This is on my 066.
Pioneerguy600
You muffler does look good, I am going to have to ad flow to my muffler, so it may look like that when its done.
I don't have the time for saws as some on here have, so this might be a week long project, but it will hopefully run good when done. It may not look as good as some and I know it won't run with the big dogs, but it will have came from my own hands, and thats what i love.
I think thats the way we all start out but the darn addiction grows with every saw or every step we accomplish then want to do more and even better projects. It gets worse every week and when you have done it for years it can get a little crazy real easy. The 066 that muffler is on has been opened up a lot and really needs the dual ported muffler to handle the flow this saw is capable of and yes it does use more fuel than a stock saw but the gain in performance is so evident that the 066`s are starting to edge out over using my 044`s and MS 440`s. The couple of extra pounds are quickly forgotten when the cutting speed is so much faster.
Pioneerguy600
I`ve had a lot of PM`s asking about placement of the ports and deflectors and why the exhaust exit points forward. Well I don`t like the exhaust gases burning up the side cases of the saws like the stock deflector does and I dont mind the hot gases bouncing off the log or stick that I am cutting as the bar is long enough that my face is not that close to the wood and have to breathe the exhaust gases and burning bark/wood etc. The next muffler I do this way I will try to keep the deflectors more even or level with each other. The stock outlet would require welding in as it is too high up on the muffler to get the second exit to align but a little more patching and welding in of the stock opening would help make the job a little more balanced.
Pioneerguy600
Pioneerguy600
