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  1. #1
    alex29573's Avatar
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    Tuning my AFR - have a question

    Hey everyone, I got my wideband installed and took it out for a ride today and got the following numbers -

    Idle = 15.0 - 15.4
    Until 5k rpm = 13.8 - 14.2
    WOT = 10.9 - 11.0

    I have 50lb injectors, stock fuel pressure regulator/ECU. What do I need to do to get the WOT leaner without leaning out the bottom end any further?


  2. #2
    geowelsh's Avatar
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    What kind of ski is it? What mods do you have? Do you have a rrfpr?

  3. #3
    alex29573's Avatar
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    rxpx stock fuel pressure regulator

  4. #4
    Work Harder, Millions on Wellfare Depend On Us! ultramaxracing05's Avatar
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    Quote Originally Posted by alex29573 View Post
    rxpx stock fuel pressure regulator
    what charger????

  5. #5
    h2jim's Avatar
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    We need more more information.

  6. #6
    alex29573's Avatar
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    rxpx
    stock ecu
    stock fuel system except for 50lb injectors
    "upgraded charger" seller said Rude and it has a spacer plate - doing 12.2lbs boost at 8060
    4" air
    rear exhaust gutted water box

  7. #7
    h2jim's Avatar
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    I would suggest a rrfpr and possably a Begi.

  8. #8
    Mod less, ride more! troyheb's Avatar
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    Get a rrfpr, and maybe some 48's.

  9. #9
    monaroman76's Avatar
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    Sounds like a mini rude. Are you sure your wide band is calibrated correctly? I can't see how with a stock ecu your idle afr could be lean ?? It should be rich!

  10. #10
    Moderator beerdart's Avatar
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    ?? boost does not kick in till 5K+ so 14 is OK for a NA run.
    Quote Originally Posted by Mtuned View Post
    The power you would gain from leaning it out, would not benifit you as much as you think, imo your lean in mid range as this is still a decent amount of boost.

    Ride that thing.

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