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Thread: Hello Everyone!

  1. #1
    OCFZR's Avatar
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    Hello Everyone!

    I am a new member of this from and like to thank everyone for the wealth of knowledge I've learned about the GPR from reading this forum.

    I have a 2000 GPR that I'm currently adding a 91 Octane GK 1390 BB kit to. My question is how much additional performance can be expected by adding the 05 pump/impeller combination and what impeller is recommeded? Can I buy the complete conversion kit anywhere?

    Thank you!


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    Hydrotoys's Avatar
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    Welcome OC!

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    WATER WOODY's Avatar
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    WELCOME aboard! You can get the kit from IslandRacing.net or Green Hulk.net we have seen 2mph gains with the setup.

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    Moderator RX951's Avatar
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    Knr's Avatar
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    Welcome to the Forum Ocgpr

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    welcome!!

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    Site Admin Green Hulk's Avatar
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    Welcome!

  8. #8
    OCFZR's Avatar
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    05 pump

    What section of www.4-tecperformance.com would I order the 05 pump parts from?

  9. #9
    GPRPITMAN's Avatar
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    Welcome.The speed gain with the dynafly pitched to a 15-24 to a 15-25 is around a 1.5 to 2mph gain. I would start my pitch somewhere in that range to start off. watch your rpms. Do you have a pet-tach?

  10. #10
    OCFZR's Avatar
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    Yes, I have a PET 2100

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