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Porting

Post in 'The Gear' started by ampamp, Mar 1, 2012.

  1. wkpoor

    wkpoor Minister of Fire

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    Apparently you haven't read my other posts. Did I not say would you rather carry a 346 into the woods or 372. The 40% is measured with a 16" bar and times are taken before and after the port work on the same exact cant with same bar and chain. There is point where the torque factor of a larger cc motor will take over I agree but in smaller wood say up to 20" the bigger saws won't cut any faster. Did you not look at the vid in my other post with link to a ported 346. I would say my 346 would hang right with a stock 372 if both had 20" bars. A 28" bar is a bit much for a 372 and will not pull it with authority in hardwood. I don't even run a 28" on my Solo681. No koolaid here. Basically you have to run a Dan Henry Power Ported saw to appreciate how good they run. I checked with my source on this and he said the 40% should a minimum gain. He has heard of over 50% gains in the 50cc 346NE.

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  2. wkpoor

    wkpoor Minister of Fire

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    [​IMG]
    Probably not. The smaller saws see the most gain and like I said before a few builders have found the formula for a few select saws. I never ported the Solo because 15% was as much as anyone could get about stock and that isn't enough for me to bother. Eric Copsy sent me a vid of a 7900 he just did and was a monster. Kevin of Chainsawrepair had a PP375 he said pulled a 32" bar fully buried and you couldn't stop it.
  3. smokinj

    smokinj Minister of Fire

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    I know there are some bad boys out there but 40 percent on any saw on gas would be very extreme.....Like I said thats a 50cc saw that could pull a 28 inch bar in big hardwood. Thats just not going to happen in a day to day opertion.
  4. Thistle

    Thistle Minister of Fire

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    Speaking of monster saws.... check this out - McCulloch 99 - 161cc/9.82 cubic inch 2 man beast 54 lbs powerhead weight. 1954-63

    My back hurts just looking at it! :gulp: :lol: http://www.ebay.com/itm/Old-Antique...835614108?pt=US_Chainsaws&hash=item19ce51419c
  5. ScotO

    ScotO Guest

    I love those ol' stinger saws.....you had to have a set of balls to hold that stinger, not to mention trusting the operator with your life. I came REALLY REALLY close to bidding on a 1959 Stihl 106cc Contra last evening, was in pretty nice condition only a few blems and ran like new, but I passed. I'm still holding out for an 090AV or 090G to restore someday.
  6. Thistle

    Thistle Minister of Fire

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    Sounds great. I plan on owning a SP 125 (or similar big old Mac like a 797,1-93 etc etc) & a 090 someday.Just hope I can find the spare cash for both before I'm too old & weak to run the damn things!! :lol:
  7. ScotO

    ScotO Guest

    Attached Files:

  8. Thistle

    Thistle Minister of Fire

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    LOL I wish.Fun stuff like that's gonna have to wait a while.I have to pay my taxes next month,no refund this year unfortunately.

    I'll get lucky with the big vintage saws eventually.
  9. ScotO

    ScotO Guest

    I'm in the same boat. That Napoleon NZ3000 fireplace install, and the entire living room remodel that goes with it, are gonna keep me scraping the bottom of da barrel for a while, too. It's OK for us to dream, right! ;-P
  10. Thistle

    Thistle Minister of Fire

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    Thankfully that dont cost nothing!!
  11. wkpoor

    wkpoor Minister of Fire

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    Totally agree I wouldn't subject my 346 to that punishment everyday. But as a felling saw in trees 20" or less they make a nice lightweight easy to handle saw. I talked to Dan a minute ago and he said 40% is the number for the 45cc version. His 50cc saws will go head to head with 372s in smaller wood. Bucking large hardwood makes sense to use big saw since operater doesn't have weight of saw in his hands. I normally fell with a smaller saw than I would buck with and for me a 357 or any 60cc saw is just about perfect for most of what I take down. Couple months ago I had a rare opportunity to fell a 48" oak. I put a 32" on the 395 for that job. But I bucked it with a 24" on the Solo. Could have taken it down with a 16" bar though cause bottom was hollow. Those ones scare me!
  12. smokinj

    smokinj Minister of Fire

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    Head to head in small wood is not a 372, can do it with 5.1 hp then so should your 346. Only thing that would its 40 percent over stock would be to run just like a stock 372. Dan can say what he wants but in noway is it 40 percent over stock. Seems people really should dinno theses things before claims like this are made. Way to much hype.
  13. mecreature

    mecreature Minister of Fire

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    I wonder what kind of increased numbers I can get on a nice older 026? They are pretty screamin saws anyway.

    And good point Jay. How do they come up with these % increases. Is it just a tach.
  14. smokinj

    smokinj Minister of Fire

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    Ego! As Lee simply pointed out by the saw you need to start with.
  15. mecreature

    mecreature Minister of Fire

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    Yeah... but.... I just want one to hang on the wall. maybe cut a few cookies...
    you got plenty of room for a GTG, I could bring it with me.... ;-P
  16. wkpoor

    wkpoor Minister of Fire

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    It goes both ways though. A stock 372 is no way going cut faster than the PP346 in saw 12" wood because of the chain speed. One thing is for certain it can whoop up on a stock 357 in any wood so right there its a heck of a saw. If it even gets close to a stock 372 thats quite an achievement. Now we haven't even talked about pipe yet. I have a buddy with a 346 piped and that will spank a 372 but I realize it isn't practical for firewood cutting.
    BTW I've never ran it but Dan has done some serious 026 work I'm told. He told me the other day on the phone he has cut way back on the port work this year.
  17. smokinj

    smokinj Minister of Fire

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    Yea we done plenty of those. Just make them cookies about 18 inchs please. ;-)
  18. smokinj

    smokinj Minister of Fire

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    Oh My, Pipe for play! I give the Kool-aid is way to strong. :cheese: (You just cant dress-up a 50cc and make it a 70cc production saw)
  19. wkpoor

    wkpoor Minister of Fire

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    Correct and nobody is trying to make a 346 an all out replacement. When I go to cut firewood I really don't do alot of cutting. Its felling and trim it up to load as logs. And I prefer to fell with as light a saw as will get the job done. The bulk of what I deal with is 24" and under. So a 346 ported can bringer down and is light enough to limb it up and cut to length. After I get home I'll cut to length with the Solo. The ported 357 I just got is wearing the same B/C but is a little faster yet. I haven't tried it with a 24" bar but aim to this spring. Pretty sure with it I will have no need for a 372.
  20. smokinj

    smokinj Minister of Fire

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    Your funny! :lol:
  21. drumbum

    drumbum Member

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    Pretty sure 40% gain is in cut speed not HP. By changing port timing you can gain hp, tq, and rpm. A 70cc saw won't automatically cut faster than a 50cc saw in 10" wood, but it will cut faster in 24" wood. You can only spin a chain so fast and a larger displacement can hold rpm in the cut (torque) with a longer bar. No replacement for displacement.
  22. wkpoor

    wkpoor Minister of Fire

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    Thats pretty much right on except there is a replacement for displacement .....its called the pipe. Like adding a turbo to 2 cycle.
  23. wkpoor

    wkpoor Minister of Fire

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    I just had a thought. I have a red oak out back I got last fall. Hasn't been bucked yet. Its somewhere close to 24" and nice and round and straight. If I have a 24" bar to fit the 346 I'll run it against my 681. If it can even get remotely close to the 681 I know what it will do against a 372 because I've already raced them and 7900s and nothing can take the 681. Heck my 395 ain't even close to that bad boy. Thats just one mean saw.
  24. smokinj

    smokinj Minister of Fire

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    Your nuts......Now after you do all this you got about 1000.00 into a 50cc saw, and an ockward pipe. Then its still not a 70cc work saw it is now a toy! (Cookie cutter) So to port or not to port! If its not clear by now enjoy.
  25. drumbum

    drumbum Member

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    You can do some modest mods yourself and get some respectable gains FOR FREE. A lighter saw making more power and cutting faster is a good thing. I should have said there is no replacement for a longer stroke crankshaft. I don't think I will be adding a turbocharger, supercharger, expansion chamber pipe, velocity stack, fuel injection, flux capacitor, wheely bars, or anything else that would make the tool less useable for the task of making firewood.

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