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Old outboards vs the newer models (just 2 strokes)?
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<blockquote data-quote="bassboy1" data-source="post: 74115" data-attributes="member: 55"><p>Actually just the opposite. The the older 18 is about equal to a newer 15. Way back when, motors were rated at the crankshaft. However, they generally lose 10% of that horsepower between the crank and the prop. Back in the mid 80s, the regulations were changed, so now motors had to be propshaft rated. So, a new motor of the same horsepower will be about 10% stronger than an old one.</p></blockquote><p></p>
[QUOTE="bassboy1, post: 74115, member: 55"] Actually just the opposite. The the older 18 is about equal to a newer 15. Way back when, motors were rated at the crankshaft. However, they generally lose 10% of that horsepower between the crank and the prop. Back in the mid 80s, the regulations were changed, so now motors had to be propshaft rated. So, a new motor of the same horsepower will be about 10% stronger than an old one. [/QUOTE]
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Old outboards vs the newer models (just 2 strokes)?
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