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Thread: rxp with rrfpr

  1. #1

    rxp with rrfpr

    i have put on a x charger ans 42 lbs injectors and the rrfpr and with base press set a 62 lbs and it hesitates, doesnt even run as it did stock
    any ideas.

    any one know what the fuel injectors are rated at lbs ?


  2. #2
    Water4fire's Avatar
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    Quote Originally Posted by texas View Post
    i have put on a x charger ans 42 lbs injectors and the rrfpr and with base press set a 62 lbs and it hesitates, doesnt even run as it did stock
    any ideas.

    any one know what the fuel injectors are rated at lbs ?

    What all does your set up have? If you have a stock IC, Then your base pressure is way to high. You didn't even need the FPR if you only have a X SCer and 4 inch intake. The 42's would have been enough.

    .

  3. #3
    stock i/c stoct intake and just what i said before

  4. #4
    i took of the rrfpr and and it runs rich as hell and will die after u let off gas after a 1/2 accell when it comes back down to idle

  5. #5
    Water4fire's Avatar
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    You have way to much fuel for that set up.

    If you have the stock intake. You probably didn't even need to go past your 38lb injecters. This is why your boat runs like crap. TOO much fuel.

    Set your FPR at 58 and unplug the boost port. This will take you back to stock Fuel pressure. See how it runs after this.

    But with a stock intake and Stock IC. you can probably go back to just stock 38's and NO FPR. I would recommend it in our texas heat.

    Are you can add some goodie's! A external IC and a 4inch rear air.

    /

  6. #6
    Water4fire's Avatar
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    Oh yea, were are you in Texas?

  7. #7
    cool thanks for the info
    now heres an question for ya
    i put back the stock reg and it runs very rich at idle,
    i have misplaced my stock injectors, there has got to be some of these on the automoive side that will work any ideas

  8. #8
    Water4fire's Avatar
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    Quote Originally Posted by texas View Post
    cool thanks for the info
    now heres an question for ya
    i put back the stock reg and it runs very rich at idle,
    i have misplaced my stock injectors, there has got to be some of these on the automoive side that will work any ideas

    You can get stock injecters for dirt cheap. Hell I think I have a couple sets.

    BUT if it were me I would go ahead and add a 4inch intake and a external IC. Or one or the other.

    Your set up with a 4inch air intake would be good with 42lbs injecters and your Stock Fuel pressure settings.

    If you went with a External IC and a 4inch air intake you would need the RRFPR. with your 42's

  9. #9
    Moderator RX951's Avatar
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    welcome to the forum texas

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