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how big of an outboard could I use?
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<blockquote data-quote="Johny25" data-source="post: 274249" data-attributes="member: 7791"><p>There is a coast guard formula to figure this out if you have the dimensions of the boat and the transom width. My guess would be 25hp would serve you just fine without pushing the limits of a boat of that age. Remember the Evinrude 18 was prior to OMC prop rating there motors so it was likely closer to 15hp at the prop. So a post 1985 25hp (prop rated) motor should push that boat fairly well compared to your old 18hp.</p><p></p><p> Check this out....</p><p> https://www.tinboats.net/forum/viewtopic.php?f=4&t=12144</p></blockquote><p></p>
[QUOTE="Johny25, post: 274249, member: 7791"] There is a coast guard formula to figure this out if you have the dimensions of the boat and the transom width. My guess would be 25hp would serve you just fine without pushing the limits of a boat of that age. Remember the Evinrude 18 was prior to OMC prop rating there motors so it was likely closer to 15hp at the prop. So a post 1985 25hp (prop rated) motor should push that boat fairly well compared to your old 18hp. Check this out.... https://www.tinboats.net/forum/viewtopic.php?f=4&t=12144 [/QUOTE]
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how big of an outboard could I use?
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