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What size prop?
I am still working on the ignition of Mercury 150 hp BlackMax. So I havnt tested this prop yet. I noticed that there is a 15 1/4 x 15p prop on it. I was wondering what you guys run? My 17' Chris Craft ran a 17p prop with 120hp I/O. It just seems like the 150 Merc should have a 17 or 19 pitch prop? Any thoughts?
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#3
11-24-2006, 08:18 PM
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Re: What size prop?
I just found Mercurys prop selector. They said 16-18. So 17 seems to be right.
Thnx
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#4
11-24-2006, 09:32 PM
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Re: What size prop?
I carry a lot of weight, persons and fish, I commercial most of the time. I went from a I/O to a 175 Yamaha, to a now 175 Evinrude
I have had 19, 17, and 15 pitch and for me the best prop is a 15 1/4 X 15 Lots of torque and up on plane fast!! a little slower on top, but who can run at top speed all the time?
__________________
1986 V20  Old Fishermen never die, we just SMELL that way!!
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#5
11-24-2006, 10:04 PM
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Re: What size prop?
When I first got my boat it came w/ a 15 1/4 x 15 and it works well. I wanted a spare so I went w/the 17" and found it, for me, to give a little more top end and was still very good outta da hole. I don't carry alot of gear or passengers[not often]. Mainly, my cruise speed stayed about the same, but I knocked off about 200 rpms and the motor is not laboring at all.[ Johnson 150 Ocean Runner]
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#6
11-25-2006, 02:53 PM
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Re: What size prop?
Thanks for the replys. I guess I'll try the 15p prop out and see how it goes.
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#7
11-25-2006, 04:01 PM
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Re: What size prop?
Quote:
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#8
11-25-2006, 09:34 PM
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Re: What size prop?
Then you need a bigger motor!! :D
__________________
Really, who ISNT better looking than Charlie?
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#9
11-25-2006, 09:55 PM
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Re: What size prop?
Quote:
No one goes full out all the time, and when these boats get it the slop they are best slow and steady!
__________________
1986 V20 Old Fishermen never die, we just SMELL that way!!
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#10
11-25-2006, 11:27 PM
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Re: What size prop?
my "81 has a 21 pitch on a 200, i don't know how it will run since i haven't had it in the water yet, but that prop looks like it has been on there for a while. The 15 sounds a little steep, i'd try a 17. Just prop it out so the engine will turn the high end of the manufactures recomended rpm range with a light load, trimmed out. Hook a shop tach up to check your tach before you start changing wheels, its suprising how many tachs are off.
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