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Air-fuel ratio question

Discussion in 'Engine/Tuning' started by DEADLY FORCE, Sep 30, 2012.

  1. DEADLY FORCE

    DEADLY FORCE . Established Member

    Messages:
    370
    Joined:
    Sep 3, 2005
    Location:
    Savannah, GA
    Forgive my ignorance, I'm looking at buying an Aeroforce interceptor guage to monitor air/fuel, does anyone know what your air/fuel ratio should be for an acceptable range on a 2011 mustang Gt with a Roush TVS using premium 93 octane fuel? I have a canned tune and haven't had it dynoed yet. I know, its probably a good question for a tuner. I would like to know what the acceptable limits are for cruise, idle & wide open full throttle to make this guage usable instead of looking at random numbers with no meaning. My car runs fine and I want to keep it that way. I'm sure this info would be helpful to others as well.
     
  2. sambandit

    sambandit SVT God Established Member

    Messages:
    6,550
    Joined:
    Mar 11, 2003
    Location:
    Castle Rock, CO
    Generally speaking, anytime except at WOT your car will be at 14.7 AFR. At WOT you want to see somewhere arounf 11.5 AFR. There are other variables but that is what you are looking for. Assuming pump gas anyway......
     
  3. DEADLY FORCE

    DEADLY FORCE . Established Member

    Messages:
    370
    Joined:
    Sep 3, 2005
    Location:
    Savannah, GA
    Thanks for the info Sambadit. Nice car too!
     
  4. benleonheart

    benleonheart 1 Step Closer to an SVT Established Member

    Messages:
    29
    Joined:
    Mar 22, 2010
    Location:
    Honduras
    Sorry, I just wanted to say that its awesome you're actually in Palmerola base, HN!
    I'm from around, but not airbase or military related! how do you like our country?
    You'll add up to the # of guys who are REAL muscle car enthusiasts around here ...

    :D
     

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