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21p to 22p Speed Increase Question
My current setup is a 1992 17.5' Skeeter, a 1992 130hp Yamaha 2 stroke, a 6" manual jackplate and a 3x13.25x21p SS Yamaha prop. The jackplate is set to 3" P2P with 18-20psi water pressure. I can hit 53mph at 5900rpm with this. The max rpm for this motor is 5-6k. My question is, if I purchased a Laser II 3x13.5x22p prop, how much speed do you think I would gain and is whether it is worth it or not? Thanks in advance for any replies.
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You won't gain any speed......
Your current RPM's are good.....
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Dam Fool
If you're not happy with that, you might want to start looking at different boats because you are pretty much maxed out....
Last edited by rangerbobber; 11-06-2017 at 09:02 PM.
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That's kinda what I was thinking. I'm new to boating. Thanks for the verification!
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How old is the prop and what shape is it in? You may just need to have the prop repaired to factory spec and can probably run that motor higher than 3" under. Yamaha's run lower water pressure than Mercury's do so 18-20 psi is high for a Yamaha which can run as low as 11 lbs at WOT.