2QM15 in Cherubini Hunter 27, anyone done it? - SailNet Community

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Go Back   SailNet Community > General Interest Forums > Gear & Maintenance > Engines > Diesel
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Diesel This is a new forum dedicated to diesel engines and their applicable accessories.


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Old 08-27-2010
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2QM15 in Cherubini Hunter 27, anyone done it?

It looks like I have JUST enough room. Was wondering if anyone has done it, knows someone who did it. It's basically the same dimensions as the newer GM's right? What about my prop? I think the current 2 blade is 13x8, what should I use for an engine with double the power and a lower final drive? Final drive of the Renault is 3:1, I'm fuzzy on the Yanmar, the manual lists two, 2.83:1 and 2.14:1. Also RPM is lower, so it washes out I think.
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Old 08-28-2010
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I have a 2qm15 in a Crown 34, disp ~10,500 lbs. We run a 14X8 2-blade. I can't speak with authority but likely the final drive is 2.14:1. I think your 13X8 prop should be in the ballpark. Have you done a prop calc using something like:Vicprop - Prop calculator for Displacement and semi-displacement hulls

Using rough numbers from here:HunterOwners.com
it calculatex a 14X8 prop

Not sure if that helps
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