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Old 02-23-2021, 11:12 AM
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i must be stupid, i dont get how gear ratio and prop pitch matter if they all equal out in the same amount of water moved. like in a jeep a 31 inch tire with a 3.21 rear end is the same as a 35 inch tire with a 3.73 rear end. same engine rpm gives you the same speed.

should i switch mine? why would saber have used that ratio when the boat was made?
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Old 02-24-2021, 11:25 PM
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Originally Posted by SABER28 View Post
i must be stupid, i dont get how gear ratio and prop pitch matter if they all equal out in the same amount of water moved. like in a jeep a 31 inch tire with a 3.21 rear end is the same as a 35 inch tire with a 3.73 rear end. same engine rpm gives you the same speed.

should i switch mine? why would saber have used that ratio when the boat was made?
To answer your last question most engine and drive manufacturers pair them based on HP and weight etc. Think of it differently than the tire gear ration thing. Look at it more like a 10 speed bicycle. When you use first gear turning that large 27" wheel is simple, tougher in 10th.
This prop calculator is one of my favorites. Put in your own information and you should get pretty accurate information to include your slip numbers. I hope that and the calculator help.

Propeller Calculator / Prop Calculator
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Old 02-25-2021, 12:23 PM
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Originally Posted by SABER28 View Post
i must be stupid, i dont get how gear ratio and prop pitch matter if they all equal out in the same amount of water moved. like in a jeep a 31 inch tire with a 3.21 rear end is the same as a 35 inch tire with a 3.73 rear end. same engine rpm gives you the same speed.

should i switch mine? why would saber have used that ratio when the boat was made?
Probably whatever they could get the best deal on lol.
That being said, when these boats were built the selection of props was way more limited than today, and once you ran out of pitch/diameter the only remedy was to spin them faster.
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RBeyer (02-25-2021)
Old 04-05-2021, 11:09 PM
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did you get a chance to try those lower units yet?
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Old 04-07-2021, 03:26 PM
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Originally Posted by SABER28 View Post
did you get a chance to try those lower units yet?
Not yet, just moved, am building a warehouse, and mostly we need some water my way. They have been repairing a Damn and it is too low to boat! A couple weeks. I will post results.
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Old 04-07-2021, 06:26 PM
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that would be great! i'm having mr. gadgets on here rebuild and beef up my bravos. just dont know if i will rebuild the lowers or replace them with short imco's. if they work for you i'll probably try them. please keep me informed!
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Old 04-08-2021, 10:26 PM
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Originally Posted by SABER28 View Post
that would be great! i'm having mr. gadgets on here rebuild and beef up my bravos. just dont know if i will rebuild the lowers or replace them with short imco's. if they work for you i'll probably try them. please keep me informed!
They finally closed the damn where we are and the water is quickly rising to summer pool levels. Hopefully soon. I will definitely keep you posted.
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