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noah
 
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Default Quick Prop Question

On Tue, 8 Jul 2003 01:22:09 -0400, "M.E."
wrote:

Hey!

I have a 17' Bowrider (fibreglass) and it has a 140HP I/O Engine. It's a
1977. I have a 14x19 prop on there right now... I had it up to about 40MPH
and it seems decent at initial acceleration. I'm looking at purchasing a
second prop for it as a spare but would like to get one to compliment the
existing one... I'm looking for suggestions on what to purchase... Does it
have to be a 14" diamater? Are there various hub sizes on the props for
Mercruisers? Any advice would be great!

Thanks,

Sorry, but there aren't usually "quick prop answers". )
You *can* use different props for different purposes (I have one prop
for water skiing/tubing, and another for "high speed"). What is
important is to NOT use a prop that allows the engine to exceed the
Wide Open Throttle (WOT) recommendations of the manufacturer, OR drops
the rpms so low that you lug the engine. Follow the WOT range stated
for your engine.

Go to your local dealer, or go online to a reputable prop dealer, and
find the recommended prop for the specific use you have in mind.

Specific to your question: No, it doesn't have to be 14". Match the
prop to the specific outdrive you have: Alpha, Beta, etc. The pitch
of the prop will affect performance more than the diameter.

Good luck,
noah

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