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  1. #1
    gprxpduglas's Avatar
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    137 et charger in a gprxp

    I have a stock gprxp 2006 motor with 16 hours rebuild. Stock, stock... just have R&D ride plate. 8100 rpm 15/20 pitched impeller does 79.1mph all nd constantly 78.6mph. Now I will install a gen 3 intercooler, now i have the whole set up to go the 137 charger 4mm , ride plate fix by island, the ss800 intake grate I will keep stock ecu for be a little more reliable. Do u think I can get to 84 to 86mph with this new set up.....,
    Thanks


  2. #2
    SLASHER's Avatar
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    U will need to re flash the Ecu ... U will be all over the limiter and rep itch prop..

  3. #3
    gprxpduglas's Avatar
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    Quote Originally Posted by SLASHER View Post
    U will need to re flash the Ecu ... U will be all over the limiter and rep itch prop..
    Stock ecu works really well with 137 charger if timing is taking into consideration. As well for speed...
    .. in a gpr yamaha hull,

  4. #4
    AtoMIC_OraNGE greenbullet's Avatar
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    douglas ecu timing has nothing to do with being on the limiter... adding 137 you will need to retune the ski adjust 2 fuel pressure regulators and re pitching the prop according to rpm and being close to that 8150 limiter

    can be done though.. i ran 137 on fpr and begi and stock ecu with #48 injector

  5. #5
    gprxpduglas's Avatar
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    Yes what I meant is 137 has run for a good long time with stock ecu with no issues. Nothing to do with being on the limiter. It's the wheel did run and runs well with stock ecu

  6. #6
    AtoMIC_OraNGE greenbullet's Avatar
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    can be tricky to get right but once set you should only have to adjust the regulators in spring and fall in cold air/water

  7. #7
    15 20 Solas?

  8. #8
    gprxpduglas's Avatar
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    Yes,

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