Blower sizing questions
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Blower sizing questions

  1. #1
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    Default Blower sizing questions

    So how do you decide if your engine needs a 4-71, 6-71, etc. Also is it more efficient to put a taller gear on a smaller blower or a bigger blower and a smaller gear?

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  3. #2
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    bigger blower with more underdrive is my .02

  4. #3
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    what are you using the boat for ?
    What are your engine specs.
    Cubic inches /heads/ flow. Carb vs injected ?
    " my carbon footprint is gonna kick your green ass"


    Quote Originally Posted by 396_Ways_To_Spit View Post
    WOWO!!!!! THat has to be the most beautiful crank that Ive ever seen!!!!!!!!!!!!!!!!


    Quote Originally Posted by MAXIMUS View Post
    He has been allowing me to park my equipment in his backyard for a few years now...
    [/SIGPIC]

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    It's just a question in gemeral. I know very little about blowers and want to learn more.

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    Quote Originally Posted by farmo83 View Post
    It's just a question in gemeral. I know very little about blowers and want to learn more.
    well its an air pump - How much air can your engine handle?
    Smaller displacment blower safe for conservitive applications I-e the weiland style 142 -177 with stock compression

    mild /conservitive 250/ 4-71
    cam/ pistons

    performance 420/6-71/8-71/and above

    crank/ rods / pistons / cam ect ect .

    In General !
    " my carbon footprint is gonna kick your green ass"


    Quote Originally Posted by 396_Ways_To_Spit View Post
    WOWO!!!!! THat has to be the most beautiful crank that Ive ever seen!!!!!!!!!!!!!!!!


    Quote Originally Posted by MAXIMUS View Post
    He has been allowing me to park my equipment in his backyard for a few years now...
    [/SIGPIC]

  8. #6
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    Quote Originally Posted by Deano View Post
    bigger blower with more underdrive is my .02
    X2 Thats the way to go

    This setup heats up the air less which is a hp killer and detonation promoter.

    Its also.... big surprise.... more expensive.


    Uncle Dave

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