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  1. #1

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    injector numbers

    hi,

    how i can check that 42lb or 50lb 60lb etc etc injectors how any cc??
    or 1000cc injectors how any lb???


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  3. #3
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    interesting. so i did the fuel injector size calculator for a px i thought. 255hp at the flywheel, 3injectors, .55bsfc, and max injector duty cycle of 80%. the last two calculations were based on the % they give you for an engine. it told me i should be using 58.43lb injectors. that size gives you room to increase HP they say.

    did i do my numbers wrong or does sea-doo just give you no extra injector "room to increase HP" on a stock engine?

  4. #4
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    AH i see they are talking about running the injectors at 43lb/hr that probably has a lot to do w/ it

  5. #5
    ROTAX RACING performance
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    all calculation based on fuel pressure 45 psi, but the stock fuel pressure in a RXP-X is 59 psi, the duty cycle is also higher as 80 % on a RXP-X

  6. #6

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    Quote Originally Posted by mrracing View Post
    all calculation based on fuel pressure 45 psi, but the stock fuel pressure in a RXP-X is 59 psi, the duty cycle is also higher as 80 % on a RXP-X
    Yes I seen.
    I called you today but maybe your phone in silent mode ??

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