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Thread: Pre mix ratio's

  1. #1

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    Pre mix ratio's

    Whats a good ratio?


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    Moderator RX951's Avatar
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    On high compression motors with tight tolerances 32:1

    You can run 40:1 on a rec boat with mild mod compression.

    I personally run 40:1 on my Stage II GPR. 150 psi compression, no porting. At my 100 hours inspection, everything looked great ! Piston skirts, powervalves, cylinder walls ect.

    Keep in mind also> !
    * The OEM oil injection is set to run 32:1 at W.O.T.

    Also use a good oil such as Amsoil

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    ya i was running amsoil with the injection. Ill plan for 40:1

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    800AMSOIL4U's Avatar
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    Quote Originally Posted by RX951 View Post
    On high compression motors with tight tolerances 32:1

    You can run 40:1 on a rec boat with mild mod compression.

    I personally run 40:1 on my Stage II GPR. 150 psi compression, no porting. At my 100 hours inspection, everything looked great ! Piston skirts, powervalves, cylinder walls ect.

    Keep in mind also> !
    * The OEM oil injection is set to run 32:1 at W.O.T.

    Also use a good oil such as Amsoil
    Dang you answered it all. Did you take pictures of your engine at 100 hours? I know you had some at around the 70 mark.

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    Moderator RX951's Avatar
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    Quote Originally Posted by 800AMSOIL4U View Post
    Dang you answered it all. Did you take pictures of your engine at 100 hours? I know you had some at around the 70 mark.
    yep

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    800AMSOIL4U's Avatar
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    Quote Originally Posted by RX951 View Post
    yep
    Hmmmmmmmmm. I would like to see those Please.

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    Moderator RX951's Avatar
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    Quote Originally Posted by 800AMSOIL4U View Post
    Hmmmmmmmmm. I would like to see those Please.
    lemme see if I can dig em up

    I've got the tops of the pistons pics......, hang on

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    Moderator RX951's Avatar
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  9. #9
    Moderator RX951's Avatar
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    I can't find the powervalve pics just yet, but trust me, they looked PERFECTLY CLEAN !!! no gummy deposits or carbon buildup!! I was amazed !!

    When we installed cajundude's gas valves a couple of years ago, he had 85 hours on the motor [Amsoil]. His too looked extremely clean.

    My piston skirts at 100 hours had no scratches at all.

    I expect to get atleast 300-400 hours out of my motor by just doing rerings every 100 hours for a peice of mind.

    Amsoil is da'bomb

  10. #10
    800AMSOIL4U's Avatar
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    Very cool thanks.

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