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  1. #1
    Hydrotoys's Avatar
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    Need help with my conversion from a 2008-9 rxp

    My MSX fuel pump has the same style screw on fuel sending unit as the 08-09's.

    Is the fuel pump on the 08's the same DIAMETER as the older pumps or is it larger???

    http://www.greenhulk.net/forums/show...=42951&page=10


  2. #2
    Tank opening for the fuel pump module is 4.5" inside dia., here is a pic of the nut holding it .
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  3. #3
    Hydrotoys's Avatar
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    It looks like the MSX tank is 5.5" inside diameter. Still, since the much smaller less than 4" does barely fit, I'm willing to bet the new sending units will fit MUCH better, maybe good enough to not worry about.

    Next question. Is the RXPX fuel sending unit a higher pressure than the 215 setup?

    nevermind... same pump

  4. #4
    speedskixp's Avatar
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    Quote Originally Posted by Hydrotoys View Post
    It looks like the MSX tank is 5.5" inside diameter. Still, since the much smaller less than 4" does barely fit, I'm willing to bet the new sending units will fit MUCH better, maybe good enough to not worry about.

    Next question. Is the RXPX fuel sending unit a higher pressure than the 215 setup?

    nevermind... same pump
    You can get a high pressure pump.

  5. #5
    Hydrotoys's Avatar
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    Quote Originally Posted by RXP6 View Post
    Tank opening for the fuel pump module is 4.5" inside dia., here is a pic of the nut holding it .
    So that means the 08 fuel pump is physically larger than the older ones too?

    Just trying to get a feel for what to order.

  6. #6
    Quote Originally Posted by Hydrotoys View Post
    So that means the 08 fuel pump is physically larger than the older ones too?

    Just trying to get a feel for what to order.
    The fuel pump is physically the same size as the older ones.
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  7. #7
    Hydrotoys's Avatar
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    Quote Originally Posted by Hydrotoys View Post
    So that means the 08 fuel pump is physically larger than the older ones too?

    Just trying to get a feel for what to order.
    Quote Originally Posted by RXP6 View Post
    The fuel pump is physically the same size as the older ones.
    I worded it wrong. So the 08 fuel sending unit is physically larger than the older ones in diameter to fit this new 4.5" hole as well?

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