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Fuel Pressure dampener on fuel rail?

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  • Fuel Pressure dampener on fuel rail?

    hi, just wondering if anyone knows much about the fuel pressure dampener on the back of the rb20det fuel rail?? i was gonna get rid of it totally and just run my return line out the back of the rail if thats possible? Does anyone know?

  • #2
    Damper FPR is on the entry, fuel pressure FPR is on the exit (to fueltank).

    From what I understand, damper FPR eliminates the pulses that get created and reverse direction when fuelpressure FPR stops fuel from exiting fuelrail. Sort of like aiming 2x waves at each other to cancel out the waves. Same works with 2x same sounds from speakers when aimed at each other.

    With dual entry fuel rail (Sard, etc), the fuel being injected at each of fuelrail (2x fuelpumps) meets in the middle (where it exits and goes to FPR and then fueltank) and cancels each other out. That's when damper FPR can be removed.
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    • #3
      Are you sure pretty sure the FPR is on the rail thats closest to the front of the car and the one on the back is the dampener because my turbo smart external FPR is running off of the front of the rail and i only have a fitting of the back of the rail running to the back of the car and everything seems to run good hah.

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