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  1. #1

    ET137 but no gain

    Hello,
    RXT 2007
    X charger with A kit 8100 rpm and 11 psi boost
    Then I replace the A kit ----> ET137 8100 and 12.8 psi ( 48 lbs injectors )
    I have no gain. Where is the problem


    Thanks


  2. #2
    mrbtd's Avatar
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    You are on the rev limiter

  3. #3
    Vern's Avatar
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    What ECU? You might be close to the limiter ... if you are not on the limiter and have seen 1.8 psi more boost on your gauge, you absolutely should see more speed and rpm.

  4. #4
    Its a STOCk ecu. I have put 1 mm to my prop and run 8000 rpm. My speed is the same A kit vs ET137 ?????

    Thanks
    Mike

  5. #5
    Eric Ocman's Avatar
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    Re: ET137 but no gain

    Is there really 1.8 lbs boost difference between those two wheels?? Do you notice more bottom end punch?

  6. #6
    speedskixp's Avatar
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    Was this back to back or atleast similar weather conditions?

  7. #7
    Quote Originally Posted by Ocman View Post
    Is there really 1.8 lbs boost difference between those two wheels?? Do you notice more bottom end punch?
    Yes 1.8 psi. I feel no great differences. the hole shot, there is no appreciable difference.
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  8. #8
    mrbtd's Avatar
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    I think you were higher than 11 lbs for your A wheel.

  9. #9
    speedskixp's Avatar
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    What IC are you running?

  10. #10
    Quote Originally Posted by mrbtd View Post
    I think you were higher than 11 lbs for your A wheel.
    I have a analoge gauge . I read 0,760 bar ---> 11 psi ( intake manifold ) for the A kit. The ET137 read 0.88 bar ---> 12.8 psi

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