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  1. #1
    Join Date
    Nov 2007
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    To rich will allow fuel to get into oil
    becareful it can lead to spun bearings
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

  2. #2
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    Good to know, thanks. My AFR stays around 11.0 at WOT but I have had instances where it got below 10.0.

    ~ Forged engine of some type ~ Ball bearing turbo of an unconfirmed size ~ 4L8000 trans ~ Beefy fuel system ~

  3. #3
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    Apr 2008
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    Birmingham, AL
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    seems rich to me....
    01 Silverado

  4. #4
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    Quote Originally Posted by sprayedenali View Post
    seems rich to me....
    Maybe, but I'm not taking any chances with #7.

    ~ Forged engine of some type ~ Ball bearing turbo of an unconfirmed size ~ 4L8000 trans ~ Beefy fuel system ~

  5. #5
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    11.0 afr is pig rich for 7psi. I shoot for 11.5-11.7 for under 10 psi. 10-14 around 11.5-11.3 and 15+ psi 11.2-11.0 afr

    you can easily be to rich just as you can be to lean and hurt a setup. Its not always about the whole saying it doesnt gain that much more if i richen it up, its the fact that your safer for bearings/oil being a little leaner

    something to think about on E85 your oil stays clean unlike gas where it gets past the rings
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

  6. #6
    Join Date
    Jul 2008
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    The Garage
    Posts
    1,330
    Quote Originally Posted by Quik View Post
    11.0 afr is pig rich for 7psi. I shoot for 11.5-11.7 for under 10 psi. 10-14 around 11.5-11.3 and 15+ psi 11.2-11.0 afr

    you can easily be to rich just as you can be to lean and hurt a setup. Its not always about the whole saying it doesnt gain that much more if i richen it up, its the fact that your safer for bearings/oil being a little leaner

    something to think about on E85 your oil stays clean unlike gas where it gets past the rings
    Hmmmm....once again, good to know. Thanks

    ~ Forged engine of some type ~ Ball bearing turbo of an unconfirmed size ~ 4L8000 trans ~ Beefy fuel system ~

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