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  1. #1
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    Fuel pressure for rxp

    Going to put my motor in, in about a week...just want to get a idea of where Im going to put my fuel at.. I know stock is 58.. So when I put my rising rate fuel pressure reg on, I want a idea where I'm going to set it.

    215 motor
    supertech dual springs/retainers
    e 137 +4 charger
    42lb injectors
    external ic
    4 inch kanaflex with filter for intake


  2. #2
    quiddo15's Avatar
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    I'd be adding an 02 sensor and Afr gauge before you do anything.

  3. #3
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    Yea I got them. That's how I'm going to know what I'm at. Sorry forgot to mention. I do got the gauge an O2 in my jpipe

  4. #4
    quiddo15's Avatar
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    Are you running a stock ecu or reflashed ecu?

  5. #5
    boost junkie skidoochris's Avatar
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    some of the older ecu's do not like over 10 psi boost and go to 100% injector DS and cut the timing a bunch
    if your ecu was mapped for 38lb injectors you should start out around 50psi and see where the afr's are

  6. #6
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    Stock 215 ecu

  7. #7
    JFizzleJR's Avatar
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    Quote Originally Posted by Seadoo1xp View Post
    Stock 215 ecu
    I agree, start at 50 and take it easy until you get the AFR into the correct range.

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