Prop spin in or out?
#1
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Joined: Feb 2017
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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..?
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..?
#3
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Joined: Jul 2004
Posts: 11,332
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From: chicago
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.
#5
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Joined: Aug 2010
Posts: 2,227
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From: Cape Coral FL
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


