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Another chainsaw dyno...

Discussion in 'Chainsaws' started by Red97, Jun 18, 2020.

  1. Red97

    Red97 Mastermind Approved! GoldMember

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    Well been holding out.

    Finally got tired of cutting wood.

    Wanted to share my new tool with the class.





    First few runs after getting everything all calibrated.

    This has a built in weather station, to keep track of temp/humidity.

    Those are the sae corrected numbers. Very close to the 660 book specs.

    Last week's project making the "bench" and jackshaft.

    This is a 30hp rated waterbrake, 17k rpm

    Have A 2:1 reduction. Helps smooth out the runs with low tq saws.

    Adjustable power head rest with a thick rubber cushion.

    20200504_124340.jpg 20200501_134355.jpg 20200422_143840.jpg

    Designed it to work with Any power head I could think of. Even raise up enough for belly pipes.

    If it can run a std 3/8×7 rim I can run it on the dyno.

    Thoughts?
     
  2. Backtroller

    Backtroller Here For The Long Haul!

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    Wow Joe. I’m impressed.
     
  3. jacob j.

    jacob j. Beezlebubba GoldMember

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    That's awesome Joe. I'll have to send you a Mac 125 to see how it does.
     
  4. Stevetheboatguy

    Stevetheboatguy mountain dew and ibuprofen please

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    Two thoughts.

    1. why didn't you do this sooner?
    2. any 5 bedroom 3 baths houses for sale close to you?


    Steven
     
  5. Woodpecker

    Woodpecker Wooden Staff Member

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  6. Catman

    Catman Super OPE Member

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    Sophisticated!!
     
  7. Agent Smith

    Agent Smith It's a big club and you ain't in it! George Carlin

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    Now thats big pimpin right there
     
  8. Red97

    Red97 Mastermind Approved! GoldMember

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    Yessir.

    Made the mount the big stihl 14mm slot. With the small stihl tail profile.

    Everything has to run a 3/8×7 to keep my ratios correct.

    But I did design it to hold the fattys...

    20200430_150211.jpg

    116cc of echo. Can clamp it almost 45* while still keeping everything in line.
     
  9. Red97

    Red97 Mastermind Approved! GoldMember

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    Can't catch the big one your first trip out.

    I'm sure we could find something...
     
  10. p61 western

    p61 western Mastermind Approved!

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    That's badass Joe.
     
  11. spencerpaving

    spencerpaving Here For The Long Haul!

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    Glad you got it going.....Now Cole will be up with a bunch of his saws!
     
  12. Red97

    Red97 Mastermind Approved! GoldMember

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    Beer, brats, and dyno day...
     
  13. TreeLife

    TreeLife I still like saws GoldMember

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    I cant believe I didnt tell anyone...do I get a cookie?
     
  14. Red97

    Red97 Mastermind Approved! GoldMember

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    No, but that is your 620 hybrid that got to break the news...
     
  15. TreeLife

    TreeLife I still like saws GoldMember

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    Lol fair!
     
  16. sawmikaze

    sawmikaze Gold Member

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  17. huskihl

    huskihl Sausage Fingers Forever

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  18. cuinrearview

    cuinrearview sierra roja amante

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    Any of my junk is available for benchmarking Joe. I'm an hourish away. All I have still stock is a 2171. Limiters still on the carb. If it helps. Or maybe I just want a beer and brat day watching Cole's saws. But seriously the Johnny is all stock...
     
  19. Bigmac

    Bigmac Here For The Long Haul!

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    Super cool! Test more saws!
     
  20. Red97

    Red97 Mastermind Approved! GoldMember

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    For sure have to send some invites out to dyno day...

    Who likes dumping chips, and having to file chains anyway...
     
    Last edited: May 5, 2020
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