Sorry if this has been discussed elsewhere. I have a 2015 Lowe SF214 with a 2015 90HP Merc 4S. The existing prop has been dinged up a bit, and I want to replace it. The boat came with a 14X13 prop. WOT is 5300RPM at 21MPH. The Mercury prop selector page is suggesting a 14X11 prop for my weight/engine combination. I plan on staying with an aluminum 3 blade prop.
Looking for thoughts about which prop to go with. I believe that 5800RPM is max for my engine.
Thanks!
Joe Friday
Question about prop pitch
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Re: Question about prop pitch
I'd say 14x11 would put you spot on!
Craig and Paula
"THE FLOATER" rebuild Spring 2013
viewtopic.php?f=2&t=15328
94 Party Barge 24' 115 merc
Turning Point hustler 14 x 13 prop
22mph gps 3 people
12 F150
Overland Park Ks
Hillsdale Lake, KS
"THE FLOATER" rebuild Spring 2013
viewtopic.php?f=2&t=15328
94 Party Barge 24' 115 merc
Turning Point hustler 14 x 13 prop
22mph gps 3 people
12 F150
Overland Park Ks
Hillsdale Lake, KS
Re: Question about prop pitch
Yes, 5,300 WOT on the 13 pitch shows that your pitch is too high (WOT RPM's are too low), so you're not getting your engine up to max horsepower.
2012 Tahoe 24' Fish-n-Fun Tritoon, with Mercury 115 HP 4-Stroke
"Trine SS Cape" (Trying 2S Cape)
Add a battery: viewtopic.php?t=13546&p=105893#p105893
I'm not a liberal, but I play one on this site.
"Trine SS Cape" (Trying 2S Cape)
Add a battery: viewtopic.php?t=13546&p=105893#p105893
I'm not a liberal, but I play one on this site.
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- Joined: Tue Mar 13, 2018 11:51 pm
Re: Question about prop pitch
I have ordered the 14X11 replacement. That was my first thought also, given the WOT RPM. I was just a little concerned to make a change from what may have been the original prop supplied when the boat was new. I hate to second guess the manufacturer. I'll post the results once I put it on and do some test runs. Thanks for the responses!
Joe
Joe
Re: Question about prop pitch
I'm running a 13 x 16 on my 20 ft Lowe with a 90 Optimax Merc. I can get 27 mph at 5800 rpm(if tach is correct) That is with a stainless prop---strangely a 13 x 16 aluminum will get me 1-2 mph more---go figure.
2009 LOWE SS204 25in logs
90 Merc Optimax
Motorguide W55 Wireless
Underskinning
28 GPS
90 Merc Optimax
Motorguide W55 Wireless
Underskinning
28 GPS