some overload condition , need advice

navman

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exMember
Joined
Feb 10, 2005
RO Number
16259
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891
While checking my RPM's at WOT yestrerday while boat was fully loaded with fuel and water etc I came up short on each motor. I have Volvo TAMD 71B's
If I recall I should be turning 2500 rpm at WOT
I only reached 2400.

Last time I tried this at half fuel and water I was able to turn 2500 on my port and I think it was 2350 on my starboard.

So I am going to go off the full load test I did yesterday. With the rpms being off 100, it looks like I need a pitch change at some point.
I planned on doing this in the spring when I pull to fix another condition.
But do you guys think this is excessive? most times with todays higher fuel cost I only run around 1500 rpms and watch my temps.
I posted another topic on temps in the engine forum, at wot I did experience a rise in temp on my port . Might be related to prop pitch, not sure.
 
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