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Old 11-24-2017, 12:49 PM   #21
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Originally Posted by mmwjr View Post
Yes thatís the estimated change in rpm per change in pitch however it differs depending on other factors of prop design such as rake, blade area, ...

Adding a blade will decrease WOT which is why I suggested a 17 inch pitch going to a 4 blade that it think you will like over a 19 inch 3 blade. Your boat your call.
I like your reasoning. Thanks so much.
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Old 11-24-2017, 04:54 PM   #22
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Happy Thanksgiving.
From what I read each 1Ē in pitch changes rpm close to 200. If that is correct, and Iím at 3950, and go from 21 to 17 pitch, that will put me at the high range of WOT rpm. I also wonder what a quarter inch in diameter and a 4th blade play into it.
Sorry, I have a boating friend that suggests strongly going to 19 pitch.
It is a 17 year old engine and I donít want to over rev.
Thanks
you want the propeller that I suggested for you... here are some reasons... going from a 3 blade to 4 will drop max RPM because of resistance and better bite on the water compared to a 3 blade... also you want to have to pull back some on the throttle if need be rather than not having more throttle to use when it comes time to use your boat... and realistically how often do you plan on nailing the gas WOT and leaving it there? it is not practical or suggested even on a low hour engine... also with the lower pitch you will be able to get on plane easier witch is easier on your engine... when your engine is not loaded up all the time you will get better fuel economy as well as well as life of the engine... well that's my 2c worth so take it for what is worth... but there is 35+ years of boating experience backing it up.
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Old 11-25-2017, 12:16 AM   #23
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14x17 Four blade it is. I canít wait to try it.
Iíll be very happy to inform my ďwell informed friendĒ the correct reasoning for the decision.
Thanks so much to you both for your help.
CHEERS
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Old 11-26-2017, 12:41 PM   #24
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It's not easy to find a 14 x 17 four blade at a decent price. I found a Quicksilver at a decent price but it said "this high performance blade is not for 1.47 gearing".
Does anyone have a source for the correct prop?
Thanks
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Old 11-26-2017, 03:53 PM   #25
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Originally Posted by Hozelitis View Post
It's not easy to find a 14 x 17 four blade at a decent price. I found a Quicksilver at a decent price but it said "this high performance blade is not for 1.47 gearing".
Does anyone have a source for the correct prop?
Thanks
in my prior post on the 1st page of this thread I had a link to it but here it is again

prop= here is what you want ----> https://www.amazon.com/Turning-Hustler-Aluminum-Standard-Rotation/dp/B00HEM9VOI

you will need the hub kit ---> https://www.amazon.com/Turning-Point.../dp/B005OSOTDW


I have the exact same prop but in 21 pitch... and love it!!
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Old 11-26-2017, 04:29 PM   #26
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in my prior post on the 1st page of this thread I had a link to it but here it is again

prop= here is what you want ----> https://www.amazon.com/Turning-Hustler-Aluminum-Standard-Rotation/dp/B00HEM9VOI

you will need the hub kit ---> https://www.amazon.com/Turning-Point.../dp/B005OSOTDW


I have the exact same prop but in 21 pitch... and love it!!
Sorry. I should have looked back. I wasnít sure if I could use the 14 1/2. Thanks much for the link.
Cheers
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Old 11-26-2017, 04:33 PM   #27
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no prob!
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Old 11-29-2017, 04:19 PM   #28
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Sorry. I should have looked back. I wasnít sure if I could use the 14 1/2. Thanks much for the link.
Cheers
any updates?
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Old 12-18-2017, 03:37 PM   #29
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Sorry. I should have looked back. I wasnít sure if I could use the 14 1/2. Thanks much for the link.
Cheers
any updates????
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Old 12-22-2017, 01:13 AM   #30
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Sorry I havenít replied. I havenít had a chance to change the prop... way too busy at work.
Thanks and Merry Christmas!
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