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Khntr85's latest activity
Khntr85
replied to the thread
661 muffler mod progression w/thermocouple
.
Yea that’s where haveing 2 of the same saws and multiple exhaust to play with would be nice….like the things redbull does which are...
Feb 17, 2026
Khntr85
reacted to
bwalker's post
in the thread
661 muffler mod progression w/thermocouple
with
Like
.
Those style exhaust have a one way pulse vs a two way pulse for a tuned pipe. IE a tuned pipe provides for negative pressure to...
Feb 17, 2026
Khntr85
reacted to
bwalker's post
in the thread
661 muffler mod progression w/thermocouple
with
Like
.
I didnt have time to respond yesterday in depth so Im doing it now. A muffler outlet is like any other port. The bigger you make it the...
Feb 17, 2026
Khntr85
replied to the thread
661 muffler mod progression w/thermocouple
.
Ya makes ya wonder about having some back pressure…
Feb 16, 2026
Khntr85
reacted to
Woodslasher's post
in the thread
661 muffler mod progression w/thermocouple
with
Like
.
I had a pair of stock 395's put in my care once, one was a basically new unit that I couldn't touch and the other was a used unit I had...
Feb 16, 2026
Khntr85
replied to the thread
661 muffler mod progression w/thermocouple
.
Pretty sure the one video I watched was only a stock 661, but yes he does have many videos…. You would think that just opening the...
Feb 14, 2026
Khntr85
reacted to
huskihl's post
in the thread
661 muffler mod progression w/thermocouple
with
Like
.
He has hundreds (if not thousands) of hours doing R&D testing on the 661, but his findings mostly apply to his ported saws. Anytime you...
Feb 14, 2026
Khntr85
replied to the thread
661 muffler mod progression w/thermocouple
.
From the test I have seen done it looks like the baffle removed and maybe enlarge the existing exhaust port a little (maybe not even at...
Feb 13, 2026
Khntr85
reacted to
tree monkey's post
in the thread
661 muffler mod progression w/thermocouple
with
Like
.
i remove the baffle and add 1 port for long bar and 2 ports for short bar
Feb 13, 2026
Khntr85
replied to the thread
661 muffler mod progression w/thermocouple
.
Old thread, but did anyone find out if just leaving the baffle and enlarging the existing port is about the best you can do??
Feb 12, 2026
Khntr85
replied to the thread
Ms661 muffler mod/baffle removal?!?!
.
Well damn I wish I would have took a pic but I thought the baffle in mine was more restrictive (I could be wrong had bad lighting and...
Feb 12, 2026
Khntr85
reacted to
singinwoodwackr's post
in the thread
Ms661 muffler mod/baffle removal?!?!
with
Like
.
So. Mine is one of the first to hit Cali so is a bit different than what you described. Brad only opened up the stock port, no extra...
Feb 12, 2026
Khntr85
reacted to
sawmikaze's post
in the thread
Ms661 muffler mod/baffle removal?!?!
with
Like
.
The new ones are the same.
Feb 12, 2026
Khntr85
replied to the thread
Ms661 muffler mod/baffle removal?!?!
.
Like you got the saw with the baffle already removed???? If so can you “feel” any difference between the ones with baffle or not??
Feb 12, 2026
Khntr85
reacted to
sawmikaze's post
in the thread
Ms661 muffler mod/baffle removal?!?!
with
Like
.
Yes structurally. Some of mine have them, some don't.
Feb 12, 2026
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