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ideal Air-fuel ratio

This is a discussion on ideal Air-fuel ratio within the Computer & Tuning forums, part of the LSx Technical Help Section category; i was wondering what the ideal air fuel ratio is for performance and also while were on the same subject ...

  1. #1
    Felix bigbucks39's Avatar
    Join Date
    Nov 2007

    2002 Trans am WS6

    ideal Air-fuel ratio

    i was wondering what the ideal air fuel ratio is for performance and also while were on the same subject the ideal air fuel ratio for economy and if there is a good number for them combined?
    2002 WS.6--------------------1994 Camaro
    QTP LT headers-----------------V6 3.4L Bone stock!
    QTP ORY W/Cutouts - POS!
    SLP CAI Lid
    SLP Line Locks
    Aeroforce OBD-II Gauges
    92mm FAST Intake
    92mm FAST TB
    Stage 2 A4 trans

  2. #2
    Just another Joe Eagle's Avatar
    Join Date
    Mar 2007
    NW Chitown

    2002 WS6

    PE (WOT) or cruise? With all those mods you'll likely need to tune your IFRs, then SD tune, then VE tune, then timing, then PE...

    Anyways, factory WOT is about 11.5 and mileage isnt terrible at that rate. There is power to be had by leaning that out to about the 12.5-13.0 range. As for cruising, 14.7 (stoich) is ideal. Then comes in the conversations of DFCO tuning...

    | '02 WS6 M6 | KOOKS/ORY | LC-1 | LOU'S SS | UMI SFCs | BMN LCAs & RELOC's | Hotchkis STB | HSW 150 shot | Lid | 42# Lucas | HPTuner Pro |

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