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#Post#: 80687--------------------------------------------------
660 muffler pipe ?
By: dpjones Date: January 3, 2018, 10:22 am
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I was thinking of adding this pipe to help get the exaust soot
farther away and maybe a might quiter as it will be blowing down
away from me. I got a Hyway dual port on my other 660 and it's
just too loud when milling. Pipe size is 11/16" inside and hole
behind it maybe 3/8". Muffler body has no cage either.
I'm just looking for opinions.
Thanks,
DJ
#Post#: 80691--------------------------------------------------
Re: 660 muffler pipe ?
By: 3000 FPS Date: January 3, 2018, 4:54 pm
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I really do not know if it will help with the noise that much to
be honest. I have a bunch of saws with muffler mods and I
always wear ear muffs so the noise does not bother me. I
would rather have the performance.
#Post#: 80692--------------------------------------------------
Re: 660 muffler pipe ?
By: Gatekeeper Date: January 3, 2018, 6:02 pm
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The more pipe that goes inside the shell the quieter it gets. I
use 1" on 70cc huskies. I would think that and the 3/8" might be
enough for a 660
#Post#: 83920--------------------------------------------------
Re: 660 muffler pipe ?
By: trappermike Date: December 29, 2018, 4:16 pm
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Should run good,but personally when I modified a muffler with
extra outlets for someone I still installed a screen with the
outlet,I would not want to think my mod caused a forest fire,so
for that reason I used screens back when I modded saws for
customers at a dealership. I know most people don't care,but
it's something to think about...
In a high flow muffler the screen will not plug for decades,or
be any kind of restriction.
#Post#: 83924--------------------------------------------------
Re: 660 muffler pipe ?
By: 3000 FPS Date: December 29, 2018, 7:51 pm
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I cut in National Forest so those saws even though have been
muffler modded do run a spark arrester screen. The screen also
seems to quiet the saw a little.
#Post#: 83926--------------------------------------------------
Re: 660 muffler pipe ?
By: trappermike Date: December 29, 2018, 10:01 pm
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Thanks,I'm glad someone agrees,some people just thought it
wasn't Manly" to install screens,but it would be hard on my
conscience if I thought a muffler I modded caused a forest
fire,then also the person may try to suit you in court if he got
in legal trouble over it.
Similar to when some fallers bought a new saw they wanted the
chain brake(056 is in the chain cover) wanted the chain brake
removed by us and replaced by a normal chain cover without the
brake,but one day a faller's new saw kicked back and severed a
few of his fingers off,he was in trouble with Workers
Compensation and tried to say a fault with the new saw caused
the accident so he claimed the throttle stuck somehow and tried
to divert the blame on us. So keep in mind legal things that
could backfire when you modify something from factory stock.
Something to keep in mind.
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