In loving memory of Kenis D. Keathley 6/4/81 - 3/27/22 Loving father, husband, brother, friend and firewood hoarder Rest in peace, Dexterday

Dyno tested........Ported 461 vs stock 461

Discussion in 'Chainsaws and Power Equipment' started by Mastermind, Aug 23, 2014.

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  1. cnice_37

    cnice_37

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    Chad, I haven't followed this on AS and am really no pro, shoot not even an armchair builder, but how hard is it to take more data between 11.5 and 12.5k. 10 points in there should give you a better profile of what's happening.

    I'm also in the camp of "who cares, it doesn't cut there, run it" btw

    Nice work.
     
    cnice_37, Aug 27, 2014
    #101 Top
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  2. Kg461

    Kg461

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    Where do u get thoso Dex?
     
    Kg461, Aug 27, 2014
    #102 Top
  3. Kg461

    Kg461

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    Test way buddy. Im in no hurry. Appreciate the efforts
     
    Kg461, Aug 27, 2014
    #103 Top
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  4. Kg461

    Kg461

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    If the saw will be cuttin at 11000 the 660 coil made .3hp more than the 460 coil? So would u guys take .15hp at 10000 or .3hp at 11000?
     
    Kg461, Aug 27, 2014
    #104 Top
  5. Kg461

    Kg461

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    Breaker Breaker Boss Hogg this is Roscoe!! We need ur opinion My Little Fat Buddy!! Lol!! That was a great show
     
    Kg461, Aug 27, 2014
    #105 Top
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  6. concretegrazer

    concretegrazer

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    [​IMG]

    [​IMG]
     
    concretegrazer, Aug 27, 2014
    #106 Top
  7. Kg461

    Kg461

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    Im wondering about timing?
     
    Kg461, Aug 27, 2014
    #107 Top
  8. Kg461

    Kg461

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    I like the original coil curve from 10000 to 11000
     
    Kg461, Aug 27, 2014
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  9. concretegrazer

    concretegrazer

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    I'd be happy with either.
     
    concretegrazer, Aug 27, 2014
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  10. Kg461

    Kg461

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    Chad how long in seconds is the dip from 11500 to 13000. If its a split second one can almost straighten the line straight from 11500 to 13000. Its not like the saw is hanging there?
     
    Kg461, Aug 27, 2014
    #110 Top
  11. MasterMech

    MasterMech The Mechanical Moderator

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    I don't think you gained much in the way of usable power with the second graph. (460 coil?).
     
    MasterMech, Aug 27, 2014
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  12. Ron660

    Ron660

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    Stay with the 660 unlimited coil and ditch that prefilter.
     
    Ron660, Aug 27, 2014
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  13. Kg461

    Kg461

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    Boss Hogg must be still sleepin! The lyme disease probably still botherin him
     
    Kg461, Aug 27, 2014
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  14. Chvymn99

    Chvymn99 Moderator

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    Mmmm...Im a little slow I guess...:emb: I didn't realize that the 461 was Mtronic... Did it just come out or just not a whole lot of excitement about it? I've heard more on the 441 and 661. But those graphs have a few day dreams going on in my little head.... This has been a interesting post. :thumbs:
     
    Chvymn99, Aug 27, 2014
    #114 Top
  15. concretegrazer

    concretegrazer

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    You're not slow cause it's not mt.
     
    concretegrazer, Aug 27, 2014
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  16. MasterMech

    MasterMech The Mechanical Moderator

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    The 461 is not M-tronic, .... Yet.
     
    MasterMech, Aug 27, 2014
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  17. Chvymn99

    Chvymn99 Moderator

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    Ok.... Back to regular broadcast.... I'll throw up a new thread....
     
    Chvymn99, Aug 27, 2014
    #117 Top
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  18. mdavlee

    mdavlee

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    I've hears 461 won't go mtronic to keep the pursts from jumping ship that don't want sprig av and electronic carb control.
     
    mdavlee, Aug 27, 2014
    #118 Top
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  19. DexterDay

    DexterDay Administrator

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    DexterDay, Aug 27, 2014
    #119 Top
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  20. Mastermind

    Mastermind

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    I'm here now.

    My little girl (32) had to have some tests run. She needs a valve replaced in her heart.

    Saws ain't that important by comparison.

    So to recap.

    The 660 coil, and the 460 seemed a bit different......but Chad re-tuned the saw.

    So, are we seeing the difference in the new tune? Or do the coils have different advance curves that make that much difference?

    Very interesting stuff......and it's been said that dyno tuning makes more questions than it provides answers to. I see that now.

    I'd like to see a run without an air filter too.....but I still think we might be seeing a lean condition at about 12K.

    Thanks for bringing this here Chad. I'm all for testing any of my saws here.

    Your 261 is here BTW.
     
    Mastermind, Aug 27, 2014
    #120 Top
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