Welcome To V6Mustang.com!

We are the oldest and largest V6 Mustang forum on the internet. If you have any questions about your V6 Mustang or just want to connect with other V6 Mustang owners around the world, you have found the best place on the internet to do that.

Registering is free and easy! Hope to see you on the forums soon!

Is there a prefered air to fuel ratio?

Discussion in '1994-2004 V6 Mustang Tech' started by StuStang, Sep 3, 2006.

  1. StuStang

    StuStang NSFW

    Joined:
    Oct 12, 2005
    Messages:
    642
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    Eugene, OR
    I have an X-Cal2 and i want to know why i would want to change the air to fuel ratio? And if i do change it what should i change it to for best ET's?
     
  2. sgramer

    sgramer Big LoZer

    Joined:
    Dec 9, 2004
    Messages:
    24,815
    Likes Received:
    61
    Trophy Points:
    58
    Location:
    San Rafael, Ca
    Yes, there is an optimal A/F, but you will need to wide band at the minim to be able to get it to where you want. It seems like most Mustang(at least the 4.6) like a high 12, to low 13 A/F. If you really want to get the most power have the A/F adjust on a dyno.

    Scott
     
  3. Justin@VMP

    [email protected] New Member

    Joined:
    Jul 28, 2001
    Messages:
    3,098
    Likes Received:
    2
    Trophy Points:
    0
    Location:
    Debary, Central FL
    You need a wideband to do that. 12.5-13.0 will make the most power on an NA car.
     
  4. StuStang

    StuStang NSFW

    Joined:
    Oct 12, 2005
    Messages:
    642
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    Eugene, OR
    what should i do with just an x-cal then?
     
  5. Justin@VMP

    [email protected] New Member

    Joined:
    Jul 28, 2001
    Messages:
    3,098
    Likes Received:
    2
    Trophy Points:
    0
    Location:
    Debary, Central FL
    If you got it from VMP then its already set up.
     
  6. StuStang

    StuStang NSFW

    Joined:
    Oct 12, 2005
    Messages:
    642
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    Eugene, OR
    Yea I got it through Jason, Thanks