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Do you prefer a 7 or 8 pin sprocket, and why?

Discussion in 'Technical Area' started by wiersy111, Feb 12, 2020.

  1. wiersy111

    wiersy111 Super OPE Member

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    Which do you prefer a 7 or 8 pin rim sprocket? What are the pro's and con's. I have used 7 pin sprockets mainly, and the only reason is because that's what we always used. I just put an 8 pin 3/8" on the Hutzl 360 I just built and it cuts fast.
     
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  2. huskyboy

    huskyboy Sorta a Husqvarna guy.

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    Depends.
     
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  3. WillG

    WillG Super OPE Member

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    7 pin for more torque.

    Sent from my E6910 using Tapatalk
     
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  4. Nutball

    Nutball Pinnacle OPE Member

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    I prefer 8t if the saw has the power for it. It cuts more wood per tank of gas. I'll stick with a 7t if it struggles to bury the bar.
     
  5. Deets066

    Deets066 AKA Deetsey

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  6. Wolverine

    Wolverine Fruit wood champion

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    You're a bit young for that, no?
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  7. wiersy111

    wiersy111 Super OPE Member

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    I am always pretty conservative on bar length and using a big enough saw. Most of the time I opt for overkill on the saw. My smaller saws are Husky 51 and 55 Rancher I wouldn't even think of an 8 tooth on them. But my big saws Stihl 044 and 660 I can't see a problem with an 8. For milling with the 660 it would be a 7. I'm just curious what others use.

    Sent from my SM-G960U using Tapatalk
     
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  8. Nutball

    Nutball Pinnacle OPE Member

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    I tend to reserve the 8t for ported 70cc and stock 90cc and larger, but I mostly cut hard wood.
     
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  9. CR888

    CR888 Here For The Long Haul!

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    It depends on what pitch your running, .325, 3/8 & .404 have different chain speeds in 7pin. An 8pin .404 is bigger than a 9pin .325 for example. Best answer to this is take the huge plunge (scary & expensive I know) and make the big decision to spend $3-5 on an 8pin rim sprocket. Fit it to your saw and see for yourself. None of us know the density of the wood your cutting, what chain setup you have etc, etc, etc. Its something you just gotta work out yahself.
     
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  10. Cat 525

    Cat 525 Here For The Long Haul!

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    8 pin for bore cutting is too fast! Can actually outrun the nose in deep bores. Experience taught me that.
     
  11. Spladle160

    Spladle160 Super OPE Member

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    10, Mo is bedder! Honestly I wouldn't have an 8 pin on a 3/8 20" 60cc saw unless I was cutting 10" and down in hardwood. maybe try and tune the chain for the 7 pin.
     
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  12. Xr650jkallen

    Xr650jkallen Super OPE Member

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    I run an 8t on the 056 all the time. I mostly cut hardwood.
     
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  13. Stem

    Stem Professional Cup Stacker

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    run a 8 pin on my 650 with the 25" or 28" bar & it doesn't seem to care lol 9 pin with 18" (avatar pic) bar just for grins.
     
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  14. Al Smith

    Al Smith Pinnacle OPE Member

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    The big Homelite in my avatar only came with an 8 tooth .404 .One of my 125 Macs runs an 8 and one a 7 .The Husqvana 2100 runs an 8 tooth .375 on a 32" bar but it's 99 cc too . The medium size Stihl's with easy change rims I just run whatever trips my trigger at the moment. WTH you can change one in about 5 minutes .
     
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  15. prkl

    prkl Well-Known OPE Member

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    8 pin on my another chainsaw and a narrow kerf chain.
    [​IMG]
     
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  16. drf256

    drf256 Dr. Richard Cranium (“RC” to Muh pals)

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    7 pin. More oiling for chain speed and generally faster cutting.

    8 pin only if using a saw with way too little bar length for its size, like a 70+Cc saw with a 20” or less.
     
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  17. Ryan Browne

    Ryan Browne Pinnacle OPE Member

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    I finally got around to trying my MOFO 036 with an 8 pin and a 16" bar in softwood. I'm normally not an 8 pin fan at all, but I think this setup works very nicely. That saw has an impressive amount of torque.
     
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