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  1. #1
    cyrillefrenchy's Avatar
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    injectors sizes question

    I read on this forum that different injector sizes are used depending of level of power increase but what means 'lbs" and why not cfm for example?
    what are the different sizes available ? just curious.
    thank


  2. #2
    GasResearch-VT.SE's Avatar
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    cc/min and lb/hr is just what is used...
    Pretty easy to convert

    Something like 42lbs x 1.05 = 440's

    So add 5% ish and add a zero and you get cc (Not exact but near enough to work out sizing quickly)

  3. #3
    boost junkie skidoochris's Avatar
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    injectors are measured by max flow at 43psi
    lbs is the weight of the fuel flow per hour
    cc is the volume of fuel flowed per minute
    it takes more fuel for more HP
    stock seadoo injectors are near max flow (DC duty cycle) from the factory at WOT
    last the more fuel psi the more fuel flow at the same DC
    DC is set by the ecu map

  4. #4
    Quote Originally Posted by GasResearch-VT.SE View Post
    cc/min and lb/hr is just what is used...
    Pretty easy to convert

    Something like 42lbs x 1.05 = 440's

    So add 5% ish and add a zero and you get cc (Not exact but near enough to work out sizing quickly)
    Make that 42lbs x 10.5 = 440's

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