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  1. #1
    SpeedJunky's Avatar
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    Piston Wash and Cylinder pics ?

    Tore the engine down today. I took pics of the wash and cylinders and needed input from you guys on what you think. The pistons look to have lots of blow-by on the pistons and the cylinders just look ....

    30 hours on pistons and rings.
    2005 stock bore ported.

    Click image for larger version. 

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  2. #2
    Moderator beerdart's Avatar
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    LEAN!!!!!!!!!!!!!!!!!!!!!!

  3. #3
    Flying Scotsman's Avatar
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    Way to Lean

  4. #4
    cheatin' piston popper addicted's Avatar
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    YIKES!!! I know the efi's run hot, so hopefully the master WFO chimes in, but it looks like the cylinder is already scored.

    Lots of good pictures here\/\/\/\/

    http://www.greenhulk.net/forums/show...ht=piston+wash

  5. #5
    krispaintballz's Avatar
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    That piston looks kinda..........FRIED. And way to lean on the wash. But at least you have it taken apart before it siezed and you had more troubles. I wanna ask, I realy never had a lean problem(knock on wood) but why does a lot of peole have a lean problem? Is it cause they keep pushing the "envelope" in trying to get close as possible to that perfect fuel/air low heat mix? Or is it cause when they rebuild the motor they dont get the highs and low dialed in(also include popoff and needle/seat etc)?

  6. #6
    Flying Scotsman's Avatar
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    Carb issues or even an air leak are common causes of a lean condition

  7. #7
    it's EFI

  8. #8
    Lean it is... What efi controller settings have you been running?

  9. #9
    SpeedJunky's Avatar
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    Quote Originally Posted by rossnemo View Post
    Lean it is... What efi controller settings have you been running?

    4-6-7.5-8 on the EFI (Riva)

  10. #10
    james k's Avatar
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    Low speed and accel are lean for a ported motor...8 on the crossover keeps it in that lean section even longer....

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