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Brand new 2012 20hp 4stroke suzuki
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<blockquote data-quote="Johny25" data-source="post: 274119" data-attributes="member: 7791"><p>Ok I couldn't watch the video because my flash player is not up to date but I will say this. And I mean no disrespect to your 40 years of boating and experience. But I do understand math and physics and the only way for you to hit 32mph with that motor's gearcase and a 10 pitch prop is to turn your engine at 7,265 RPM and have ZERO slip. This is not even possible so something is amiss with your GPS or something. </p><p></p><p> If you had your engine at its max RPM of 6250 with a 10 pitch prop and I give you a very good hypothetical 8% slip ratio you would only still be doing 25mph. Now if you had zero slip (not even possible mind you) you would only be at 28mph with a 10 pitch prop on a 2.15:1 gearcase at 6250 RPM</p><p></p><p> It is just not mathematically or physically possible with that gearcase, prop, and that motor's RPM range to even come close to 32mph</p></blockquote><p></p>
[QUOTE="Johny25, post: 274119, member: 7791"] Ok I couldn't watch the video because my flash player is not up to date but I will say this. And I mean no disrespect to your 40 years of boating and experience. But I do understand math and physics and the only way for you to hit 32mph with that motor's gearcase and a 10 pitch prop is to turn your engine at 7,265 RPM and have ZERO slip. This is not even possible so something is amiss with your GPS or something. If you had your engine at its max RPM of 6250 with a 10 pitch prop and I give you a very good hypothetical 8% slip ratio you would only still be doing 25mph. Now if you had zero slip (not even possible mind you) you would only be at 28mph with a 10 pitch prop on a 2.15:1 gearcase at 6250 RPM It is just not mathematically or physically possible with that gearcase, prop, and that motor's RPM range to even come close to 32mph [/QUOTE]
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