Blower size/PSI?
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Blower size/PSI?

  1. #1
    Senior Member APOLLO's Avatar
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    Default Blower size/PSI?

    I have a question about size's of blowers.

    If you have a blower like 871 and it put's out 6PSI does a larger blower put out more PSI at the same speed?
    I know the larger blower put's out more cubic inches of air but not under standing something.
    I see that some people put huge blowers on small cubic inch motors but does that mean that they don't have the Boost or PSI of a smaller blower?

    I hope that makes scene.

    Thanks Troy

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    Quote Originally Posted by APOLLO View Post
    I have a question about size's of blowers.

    If you have a blower like 871 and it put's out 6PSI does a larger blower put out more PSI at the same speed?
    I hope that makes scene.

    Thanks Troy
    YES. more air is being driven (forced) at the same drive ratio into the engine..boost will go up

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    It will also be at a lower temp.


    Darrell.
    San Diego.

    28ft Sportcat
    With Twins

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    Senior Member APOLLO's Avatar
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    I remember that now. Thanks guys

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    Mr. Potato Head
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    You thinking of cutting a hole Troy?
    76 COLE TR2

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    Senior Member APOLLO's Avatar
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    It's off and not going back on LOL And it's on like donkey Kong

  9. #7
    Senior Member Jake's Avatar
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    Blower size is most correctly determined by cubic inches.

    the more inches the more blower.
    the more blower the more horsepower to drive the blower
    the faster you spin it the hotter the charge
    the bigger the blower the slower you can spin it

    All these issues should be taken into consideration before selecting a blower size to maximize the blower and motors efficiency.

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