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  1. #1
    rainedave's Avatar
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    OS .61FSR ABC

    Ok, time for another old, out of production engine test.[8D]

    This is one of the easiest starting, smoothest handling sixties I own. Certainly, the three adjustment #7M carb has a lot to do with it.

    Temp: 57°
    Powermaster GMA 5/22
    OS #8 plug
    APC 11x7
    12,964 w/stock muffler
    1.4hp
    7.96lbs. static thrust

    This is about 300 or so stronger than my ringed .60SR.

    David
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  2. #2
    Kmot's Avatar
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    RE: OS .61FSR ABC

    Powermaster GMA 5/22
    What is this?
    ~Tom~

  3. #3
    rainedave's Avatar
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    RE: OS .61FSR ABC

    It's George Aldrich "signature" C/L stunt fuel. I use it in all my old engines because of the castor content.

    http://www.powermasterfuels.com/products/GMA.html

    David

  4. #4
    SpeedBoy's Avatar
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    RE: OS .61FSR ABC

    rainedave , do you know if this fuel (GMA 5/22) would be a good option to run a MVVS .61 with tuned pipe ???

    I'm on the market for the best fuel to this engine (still NIB ).


    Thanks .
    Living on a War Zone !!!!!
    Seriously

  5. #5

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    RE: OS .61FSR ABC

    nothing like a good running strong engine[8D]
    smooth as silk!

  6. #6
    rainedave's Avatar
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    RE: OS .61FSR ABC

    SpeedBoy, I think the 5/22 would be fine. You might ask DarZeelon what he recommends. But, being European, I think they are designed for low or no nitro. I would use a fuel with castor oil.

    David

  7. #7
    Kmot's Avatar
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    RE: OS .61FSR ABC

    Thanks Dave. I have used Powermaster fuels exclusively for at least two decades and have never seen the GMA fuel before.
    ~Tom~

  8. #8
    SpeedBoy's Avatar
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    RE: OS .61FSR ABC

    Thanks David , I sent a PM to DarZeelon already
    Living on a War Zone !!!!!
    Seriously


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