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Discussion Starter #1
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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what are you using the boat for ?
What are your engine specs.
Cubic inches /heads/ flow. Carb vs injected ?
 

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Discussion Starter #4
It's just a question in gemeral. I know very little about blowers and want to learn more.
 

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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 !
 
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