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Thread: Running Lean at WOT

  1. Top Of Page | #1
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    Running Lean at WOT

    Data logged my car yesterday after a installed a Walbro 255 pump to see how everything is running and found at WOT I'm running a 11.0 air fuel ratio. I need some help?? What range should my air fuel ratio be??

  2. Top Of Page | #2
    System Operator IGOTASUBARU's Avatar

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    We will get Holy on this.
    Without you, we cease to exist. Without your support, we stop growing. Without your involvement, we remain at a standstill.
    Thank you for your faithfulness to our organization and your creative ideas and support.



  3. Top Of Page | #3
    DownforceTom's Avatar

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    Yeah, Holy to the rescue.

    Edit: list what's done to the car so we know what you're working with please.
    Every thug needs a lady.

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    Why do you think 11.0 is lean?? Were you tuned at something different before? Or are you running a factory tune?

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    07 Wrx . Catless turbo back exhaust, K&N short ram intake, MBC, access port Stage 2, Walbro 255 pump. I want to know if 11.0 is too lean or if its safe to run that much of an air fuel ratio.

  6. Top Of Page | #6
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    14.6:1 is what is considered perfect Air/Fuel Ratio, however most turbo cars are factory tuned around 12:1 due to the need of more fuel per air needed. You should be fine at the 11.0:1

  7. Top Of Page | #7
    DownforceTom's Avatar

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    However, that k&n filter is no bueno sir. The oil on it will kill your maf sensor. Save yourself the trouble & get a new, non oily filter. Seriously.
    Every thug needs a lady.

  8. Top Of Page | #8
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    Never installed the K&N filter installed a different when I put the intake in

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