porting a muffler

[countryboy77]

i have seen several people talkin about porting the muffler for more power. can anyone tell my exactly how to do it? any and all info is greatly appreciated. thanks all!

 

[Crazy_Jimmy]

Yeah me too,I want my 200t to have more power.

 

[Treetrim]

Depending on saw, just takes a extra hole drilled on some muffler types. On some add a deflector if the extra hole is in a area that can use it.
On the newer stihl saws like 460-660 open the pencil eraser hole up to the original size of the first o46-066 mufflers. Then add a factory dual port stihl muffler cover or make your own using a deflector in the front cover.


For the little screamer 200T I had, all that was required was pulling the spark screen.
There is further mods to the exhaust on a 200, but not needed for stock ones.

 

[countryboy77]

im runnin a 338 cali.

 

[BostonBull]

[ QUOTE ]
im runnin a 338 cali.

[/ QUOTE ]

not a fun one to do, better off buying a muffler preported off ebay. I havent been on for a while, 2 years really, but Scott Wojo had them for sale back then.

Cali type emissions mean cats in the muffler, not easy to work around.

 

[countryboy77]

i swaped mufflers w/ one off of a 334 and i swear that there is nothing in my original muffler, they weighed the same. a guy at baileys also told told me there was a honeycomb in the muffler.

 

[BostonBull]

[ QUOTE ]
i swaped mufflers w/ one off of a 334 and i swear that there is nothing in my original muffler, they weighed the same. a guy at baileys also told told me there was a honeycomb in the muffler.

[/ QUOTE ]

cut it open and see

 

[HÖLLENREICH]

Same for the 200 mod, it's much nicer to cut it open and remove the baffles. Then braze it back.