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  1. #1
    Lbaronio's Avatar
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    RRFPR pressure question?

    My friend just installed hes Riva RRFPR and hes having trouble with the o2 sensor and afrs...
    I would lend my ECU for this weekend race BUT mines its already mapped and i dont need an aditional RRFPR...
    The question is : At what pressure the RRFPR does not do anything at all...
    What i do with the reference line to keep it that way....
    I dont want to take the pump out for just a race, just wanna plug my ECU and then take it out
    Many thank for the answer
    PD: He have the same mods as me.., just hes ecu work with a RRFPR and mines not...


  2. #2
    monaroman76's Avatar
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    Stock fuel pressure is 58psi. Do not attach the boost reference line to the RRFPR.

  3. #3
    Autism Speaks. Its Time To Listen gOt BoOsT's Avatar
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    Quote Originally Posted by monaroman76 View Post
    Stock fuel pressure is 58psi. Do not attach the boost reference line to the RRFPR.
    +1 use your ecu and set the base pressure in the regulator to 58psi and dont use the vacuum line to the manifold. gL

  4. #4
    dnielsen's Avatar
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    +3, the kit comes with a small brass fitting that interchanges with the barbed fitting for the reference. Remove the reference line, plug/cap the nipple on the manifold, screw in the brass fitting on the RRFPR where the barbed fitting to the reference line is located.

  5. #5
    SC on water, TT on land
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    How do you know if you need to hook your rrfpr up to a boost source or not?

  6. #6
    ADAMBOMB's Avatar
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    Quote Originally Posted by PTLanza View Post
    How do you know if you need to hook your rrfpr up to a boost source or not?
    You will need to install a AFR gauge and you will know right away!

  7. #7
    SC on water, TT on land
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    Quote Originally Posted by ADAMBOMB View Post
    You will need to install a AFR gauge and you will know right away!
    Boost source is connected.

    The last time I hooked up my LM-1 @ 60 psi base pressure, cruise numbers were between 14-16 and WOT was around 11.6.

    I will keep it this way then.

  8. #8
    ADAMBOMB's Avatar
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    Quote Originally Posted by PTLanza View Post
    Boost source is connected.

    The last time I hooked up my LM-1 @ 60 psi base pressure, cruise numbers were between 14-16 and WOT was around 11.6.

    I will keep it this way then.
    Whats Idle..

  9. #9
    SC on water, TT on land
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    Quote Originally Posted by ADAMBOMB View Post
    Whats Idle..
    I can't remember what idle was at the time. I've put an upgraded fuel pump in since then (it's been a couple of years since I've been out on the water). What should the idle range be?

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