Wooooooooo DAWGY!!!!!!

[Al_Smith]

Here is a point of view or opinion on the suject of muffler modifications.

Often times people expect the saw rpm s to automatically jump a couple of thousand rpm s .This is not neccessarily true.Rpms out of the wood just make noise,it's the cut speed in the wood that counts.

The whole idea behind reworking a muffler is to allow more fuel,in a usable mixture   to be used within the engine for power.If bigger were better,just remove the muffler but trust me it won't run as good,been there and done that.

Little stub pipes and megaphones look kind of cool and add to a certain amount of austetics but do little if anything for the overall performance.

Because I have so many saws ,covering the whole ranges of sizes ,I tend to be rather conservative on saw modifications.A modest gain of 10 to 15 percent in my way of thinking would be just about right for an everyday usefull saw.

The actual outlet size for the muffler has long been a debated issue on many internet forums .Just remember it does little good to just make the things run louder and blow fuel out the muffler with little gains.My suggestion is to do a little bit at a time and stop when you are comfortable with it.

[jokers]

Here is a point of view or opinion on the suject of muffler modifications.

Often times people expect the saw rpm s to automatically jump a couple of thousand rpm s .This is not neccessarily true.Rpms out of the wood just make noise,it's the cut speed in the wood that counts.

The whole idea behind reworking a muffler is to allow more fuel,in a usable mixture   to be used within the engine for power.If bigger were better,just remove the muffler but trust me it won't run as good,been there and done that.

Little stub pipes and megaphones look kind of cool and add to a certain amount of austetics but do little if anything for the overall performance.

Because I have so many saws ,covering the whole ranges of sizes ,I tend to be rather conservative on saw modifications.A modest gain of 10 to 15 percent in my way of thinking would be just about right for an everyday usefull saw.

The actual outlet size for the muffler has long been a debated issue on many internet forums .Just remember it does little good to just make the things run louder and blow fuel out the muffler with little gains.My suggestion is to do a little bit at a time and stop when you are comfortable with it.

Excellent post Al!

[parrisw]

Ok, thanks again guys, maybe I jumped the gunn a little on putting this muffler on, I will close off the stock port on this modded muffler and se what happens.  Im thinking that the stock muffler with baffle removed would be about right.  But this one sure sounds cool.

Thanks again

Will

[jokers]

Hi Will,

Since you already have the muffler modified, why not experiment a bit with it? Run it as is and time a few cuts and then block the factory opening with something, maybe some wadded up aluminum foil and then time a few more cuts. It wouldn`t need to be an air tight seal, just enough restriction to let you know whether or not you need to mess with closing the stock port. You can also close the stock port by varying degrees by squashing the deflector down.

[parrisw]

Yes good plan, I figured since the two front ports are already too big, I figured closing the stock opening and leaving the two front ones would be better?? 

Thanks again for all your guys help.  I still haven't cut with it yet with the mofifed muffler on it.

[TexasTimbers]

Will, how bout an update. What was the final disposition on the 394?