WOT RPMs - You by Yourself, or w/ Load & Passengers

seedlings

seedlings

Petty Officer 3rd Class
Joined
Jun 5, 2009
Messages
92
Should engine Wide Open Throttle RPMs be established with just You and the Boat, without standard equipment (fishing, cooler...), without standard passengers (wife and kids)?

Or, should you account for standard equipment and passengers when setting trim (manual for me) and selecting the prop pitch to get factory recommended rpm range? Loaded, I'm ~4400rpm when the manual recommends 4500-5500rpm. I have yet the privelage of a solo voyage.



Thanks... learning slowly.

CHAD
 
C

crb478

Lieutenant Junior Grade
Joined
Dec 6, 2006
Messages
1,036
Re: WOT RPMs - You by Yourself, or w/ Load & Passengers

It should be with an average load and passangers. Hopefully you do not typically go around overloaded. Generally speaking it is usually 2-3 people and 3/4 your fuel capacity and what ever else you would normally carry.
 
C

CanWoodsman

Petty Officer 3rd Class
Joined
May 21, 2006
Messages
75
Re: WOT RPMs - You by Yourself, or w/ Load & Passengers

I find it best to set up with the usual way you use the boat. That being said you are only about 100 rpm short of your recomended range loaded and would be within it unloaded. If your prop is in good shape I wouldn't worry. If you do get another prop drop 1" in your pitch (same diam. and type) and you should be in the range loaded & unloaded.

Rick
 
ondarvr

ondarvr

Supreme Mariner
Joined
Apr 6, 2005
Messages
11,527
Re: WOT RPMs - You by Yourself, or w/ Load & Passengers

For best performance and longevity get the RPMs to the top of the range, your engine will thank you for it with many more years of trouble free service.
 
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