Car Starving For Fuel.

Discussion in 'Fox 5.0 Mustang Tech' started by bigdavetalldave, Sep 16, 2013.


  1. bigdavetalldave

    bigdavetalldave Member

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    Realistically, what do I need fuel/air wise to keep up with gt40p heads, b cam, edelbrock intake? Pump, regulator, injectors, maf? Do I need all of the above?
  2. Grabbin' Asphalt

    Grabbin' Asphalt Mustang Master

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    you could get away with it but you'd be leaving hp's on the table without a tune and upgraded fuel pump, bigger maf, tb. you can use the same injectors until 300rwhp.
  3. jAEded

    jAEded Active Member

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    Stock FP regulator should be fine. You might be kind of lean running that setup with stock injectors and MAF, or running the 19lb injectors at a 95% duty cycle.

    Easiest way is do a cobra conversion. 24 lb injectors, stock cobra maf and x3z computer. You're fine on the rest. May want to do at least a 190 lph fuel pump. I have this setup in my daily with the gt-40x and I like it. The car is faster than a stock 5.0 and it runs like a stock car should. I know people disagree with me on the x3z.

    The other option is to maybe go 30 lb fuel injectors, a 70mm MAF and have the car dyno tuned.
  4. mikestang63

    mikestang63 Mustang Master

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    All hail the mighty B cam!! Just installing the B cam alone is worth 200 hp.
    jAEded likes this.
  5. jAEded

    jAEded Active Member

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    Lol... I'm old school... I still like the stock cam.

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