01-24-2020, 01:55 AM
My thoughts are 40 hp is 40 hp regardless if its a 4 stroke or 2 stroke. They have different torque curves on the power, but that can be easily equaled by using the proper pitch prop! 4 strokes are heavier than the 2 stroke counterparts, so you'll be pushing more weight too. Go with the largest HP motor that your boat is rated for. At our altitude in Utah, going with anything less means less performance since we lose 3% of the HP for every 1,000 feet above sea level (where the HP ratings are calibrated to). So for most of our lakes (usually 6,000 feet or more) we lost 18% of the HP. So for a 40hp engine at our altitude it really only a 33hp engine! Think about that for a minute.
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