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Saw video thread

Discussion in 'Chainsaws' started by Deets066, Jan 3, 2016.

  1. paragonbuilder

    paragonbuilder ONE OF THE GREATEST!

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    I think he is looking for more heat, so a lower octane Would make more sense I think.

    Edit: I don’t think it’s stupid at all
     
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  2. RI Chevy

    RI Chevy Stihl Runner

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    Yup. I thought he said it popped less when hot? So a higher octane may run the saw a but hotter, thus eliminating the popping.
    But I suspect everyone is leaning toward a bad port job, or a maxed out, best ever, top 3 type port job.
    Good enough for who it was for kind of thing and stuff.
     
  3. huskihl

    huskihl Just an ordinary member

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    I understand your line of thought, but I think octane functions nearly the opposite. The higher the octane, the more resistant it is to detonation. And i believe higher octane burns slower
     
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  4. RI Chevy

    RI Chevy Stihl Runner

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    Ahhh. OK. So I am backwards in my thinking. Lol
     
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  5. MustangMike

    MustangMike ONE OF THE GREATEST!

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    That is correct. Higher Octane ignites at a higher temp, allowing for higher compression, but in the same engine it will burn cooler (but have a longer burn time).

    It will only produce more power in an engine designed to use it (or with the proper computer controls).

    Which leads to an interesting question ... would a M Tronic saw make more power with high test fuel (by providing more timing advance)???

    Stihl generally recommends a minimum of 91 octane stating that the higher octane will run cooler.
     
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  6. Deets066

    Deets066 AKA Deetsey

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    Maybe you should just put melted butter in the bar oil tank and see if it makes tasty popped saw chips?
     
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  7. RI Chevy

    RI Chevy Stihl Runner

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  8. huskihl

    huskihl Just an ordinary member

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    Put the carb on the 661 with my ported cylinder....runs fine. Put Popcorn on....pops midrange but quits popping under load. Gonna pull the saddle and try that
     
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  9. Deets066

    Deets066 AKA Deetsey

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    Why mess with popcorn if yours runs better?
     
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  10. maulhead

    maulhead Pinnacle OPE Member

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    Nice Lil top handle...

     
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  11. huskihl

    huskihl Just an ordinary member

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    Cuz it's still a useable cylinder. We all know he ported a strong saw. Possibly stronger than ones I did. But we won't know until I've cussed at every single part on it and figured it out. If it's at least close to a good running cylinder, I don't see a problem with running it
     
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  12. Stihlbro

    Stihlbro Pinnacle OPE Member

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    Sounds like a short circuit effect happening.
     
  13. Chainsaw Jim

    Chainsaw Jim Cylinder Assembly

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    It may be a jms cylinder, but someone paid for it. Hopefully it can be fixed.
     
  14. huskihl

    huskihl Just an ordinary member

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    Yeah. That
     
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  15. X 66 stang347 X

    X 66 stang347 X Pinnacle OPE Member

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    Did you try a stock key and see?
     
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  16. huskihl

    huskihl Just an ordinary member

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    Not yet. I could try it tomorrow
     
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  17. X 66 stang347 X

    X 66 stang347 X Pinnacle OPE Member

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    Ok. Bet that stops it
     
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  18. Redfin

    Redfin Meh...

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    QuitterZ...
     
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  19. huskihl

    huskihl Just an ordinary member

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    Seems ok now. AM 066 carb is all I had in the drawer. 4 seconds faster than mtron

     
  20. tree monkey

    tree monkey ONE OF THE GREATEST!

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    that's a big diff it time
     
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