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Alumacraft MV1448 Seadoo IB jet, Still jetting
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<blockquote data-quote="Ranchero50" data-source="post: 112457" data-attributes="member: 1523"><p>Steve, the spoon more than any other thing. The hydrodynamics of the original intake was decent, the front wall was a little abrupt, but it would still pull water into the inlet on flat water. With a little chop the boat rode higher so it was injesting air between the waves. With the spoon addition, the spoon was still in the water in mild chop so cavitation was much less. In fact, at speed the spoon is right at the leading edge of the water under the hull. I'm amazed this boat does as well as it does.</p><p></p><p>A 650 in a 16-48 should perform well, similiar to a 60-40 jet if not better. You could mock up the spoon out of fiberboard or something similiar and glue it on to test the design if you don't have welding skills. Your tigershark intake should be fine if the boat sat further in the water but since it's so flat and big you are n't displacing any water on plane and it's sucking air right down the strakes.</p><p></p><p>Jamie</p></blockquote><p></p>
[QUOTE="Ranchero50, post: 112457, member: 1523"] Steve, the spoon more than any other thing. The hydrodynamics of the original intake was decent, the front wall was a little abrupt, but it would still pull water into the inlet on flat water. With a little chop the boat rode higher so it was injesting air between the waves. With the spoon addition, the spoon was still in the water in mild chop so cavitation was much less. In fact, at speed the spoon is right at the leading edge of the water under the hull. I'm amazed this boat does as well as it does. A 650 in a 16-48 should perform well, similiar to a 60-40 jet if not better. You could mock up the spoon out of fiberboard or something similiar and glue it on to test the design if you don't have welding skills. Your tigershark intake should be fine if the boat sat further in the water but since it's so flat and big you are n't displacing any water on plane and it's sucking air right down the strakes. Jamie [/QUOTE]
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Alumacraft MV1448 Seadoo IB jet, Still jetting
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