Al , perhaps YOU should do a 462c build ... I go by and have always gone by RESULTS ! I shall let the machine(s) speak for themselves without getting caught up in any meaningless banter....Good day !
The final numbers will stay behind the shop walls ... I may show a few “money shots” of the cylinder after it has been “flow enhanced “ good day !
Yah , anytime you alter the exhaust flow whether opening the stock outlet or by adding a pipe you are “tuning” the output of the engine ... this is simply physics 101 or to put in relative terms Hotsaws101 !!!
@wcorey - old link but may shed some light on the idear https://www.arboristsite.com/community/threads/muffler-mod-theory.96073/
You have your “theories” and we have ours ... I think that’s wonderful !
Yah , think FLOW my friend ... more air thru engine more power - basic physics 101 ... the outlet on the stock can is too restrictive ... a 2.5” Long pipe protruding into the can makes for nice gains especially when the orchestra is playing in tune ! The pipe I have on is a bit large for the stock saw but when hot-woods ported should flow-nicely ... what’s nice is that you can turn down another pc of stock to a loose press-fit INSIDE the tube already affixed and monkey around with the outlet size (tube in pic is .875 until one gets the best of both worlds )relatively quickly and inexpensively without the need to butcher the can as the 462c has a removable cover held on by 4 t-27 bolts!
Yeah, but yours have been proven incorrect.
Incorrect ... much sharper minds than yours or mine have proven this to be the case ... again ... you have your theories and we have ours and that’s wonderful ... as far as raising the peak hp and “loosing torque” can you please explain the mathematics involved with your statement ? By simply adding the tube exhaust with the correct length,diameter and shape the engine will pull harder in the wood which is what I’m after ... you can butcher the can and add as many deflectors as you desire but what if you find the limit ? Now you must weld the can back up ... Nono sir ... I much prefer the method I’m using here as it’s very easy to machine another tube that will fit INSIDE the one presently affixed and change the diameter of the outlet quickly and inexpensively until you are satisfied with the results !
Yah , again you have your theories and we have ours - I never said it was “the best there is “ in no way shape or form ? I’m trying to increase the output of the Saw and so far have been successful so regardless of your position/opinion I consider it a success !
Yah , no need to cut the base on this saw imho ... the design of it lends to upper mid-range top end power which is what I’m after ... why increase the compression when it’s rpms that I’m after ? Huskil , You do understand that too high compression is an rpm killa don’t you ?
That's the cost of having fun. Once you find the best all-around outlet size, you'll know the next time.
No alterations done to the can
Again Huskihl , this has been worked out years ago by much more enlightened individuals than either you or I who have proven it to work ... nothing wrong with using deflectors if that is the method you choose ... the goal here is flow my friend - more than one way to skin a rabbit ... if this fails to satisfy your “preconceived notions” then so be it ! Good day !
Not in the realm of a worksaw. You're talking in the 260-300 lb range before parasitic losses from what I've seen. I'm only shooting for 200-220.
