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  1. #1

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    Fuel Pressure falls when WOT/ normal?

    looking at gauge on regulator with seat off....seen it fall from 58Psi to about 55Psi and stay at 55 while WOT....is that normal? and back to 58Psi at idle --12 RXPX

  2. #2

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    Quote Originally Posted by overboost View Post
    looking at gauge on regulator with seat off....seen it fall from 58Psi to about 55Psi and stay at 55 while WOT....is that normal? and back to 58Psi at idle --12 RXPX
    I replaced my stock fuel pump with an AEM 340 LPH and the fuel pressure stays at 58psi all the time. It holds very steady. Do you have a fuel pressure regulator?

  3. #3

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    yes a Riva RRFPR.... set to 58Psi static ( rising rate not hooked up )


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