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Prop spin in or out?

Old 03-08-2017, 07:42 AM
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Question Prop spin in or out?

Hey everyone first id like to say im a little new to the twin engine configuration so please excuse my ignorance lol.
Anyway i just purchased my first twin engine 93 35'fountain sig.(hence the screename?My question is does anyone here know how these flat bottoms perform best with props spinning in or with them spinning out.Im in a motor build process now they should be around 600hp .looking for top speed obviously without taking away too much of handling away.Also whats your opinion on wich props they perform best with(3blades,4b bravo, hrdros etc..?
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Old 03-08-2017, 04:28 PM
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My 93 35 with various power liked 3 blades spinning out the best for top speed. All around best were the 14.25 diameter 4 blades I just sold.
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Old 03-08-2017, 04:57 PM
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Seems like most 35's I've seen, came from Fountain with them spinning IN. I spin them "in" on my 38. Tried "out" , and didn't care for it. But my boats a completely different setup . With bravo's, its easy, just try it both ways and see what it likes.
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Old 03-08-2017, 05:14 PM
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They always said. IN TO WIN
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Old 03-08-2017, 05:21 PM
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I have a buddy with the same boat and about the same power. His works best with 28" Hydromotive 4 blades. Not sure about the rotation though. As Mild says, just swap sides with the props and run it in reverse to see how it perform
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Old 03-08-2017, 05:43 PM
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Nice whats he seeing for speed?
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Old 03-08-2017, 07:06 PM
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85ish with a liquor store in the v berth
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Old 03-08-2017, 07:24 PM
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What if you could get +2 MPH with the props you have? Call Brett at BBLADES and see what he thinks. It all gets down to....how much are you willing for + 1-3 MPH?
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Old 03-08-2017, 07:27 PM
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holy **** thats awsome! i was thinking 80-82 tops with 600 hp motors
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Old 03-08-2017, 07:40 PM
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You have a lot to do before you worry about prop rotation lol
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