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  1. #1
    Jknauer00's Avatar
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    No boost running like crap

    Ok I'm building a gprxp but can't seem to get my motor to run right. Idles fine at 12.4 afr on the hose. Put it in the water it goes to 10.4. Wot it's back to 12.4 6000rpms and 3.2 pounds of boost. I don't get it. I'm tuned to 9000 rpms 60 pound injectors and walboro 255. Rrfpr is also set to 40 psi which I know is got to be wrong. But when I turn it up it loads up. Supercharger et70 140


  2. #2
    Got Boost? psycho rxp's Avatar
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    Boost leak sounds like ...

  3. #3
    Jknauer00's Avatar
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    I checked every clamp got new ones and all they are tight even sprayed soap and water on the hoses to see if I got bubbles. Everything seems sealed. Maybe I will remove my intake see what's going on

  4. #4
    dpracing's Avatar
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    How's the slip ?

  5. #5
    Sharkdiver1125's Avatar
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    Yea check the washers in the blower, that thing should fly once you get it done right

  6. #6
    Jknauer00's Avatar
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    Slip I just checked. Set my torque wrench to 20 ft lbs and it beeped. Nothing turned. Should I remove the nut re set it. How I checked it was removed the sc used my scer rebuild tool to hold the gear and checked the front nut and the rear

  7. #7
    Jknauer00's Avatar
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    Click image for larger version. 

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  8. #8
    Got Boost? psycho rxp's Avatar
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    The wheel could be slipping on the shaft, Intake manifold could have split on the seams.
    Do u have a BOV ?
    What IC do u have?

  9. #9
    Jknauer00's Avatar
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    I have a fizzle ic. And I think the wheel spinning on the shaft is it. That's kinda how it feels when I slowly take off it feels like it's gonna go. I punch it seems like it's slipping. I'm gonna pull the wheel now

  10. #10
    Jknauer00's Avatar
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    And no blow off valve

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