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optimum RPMS and fuel consumption

nightstalker

Regular Contributor
I just bought a 1990, 34' Luhrs, motor yacht with twin 454's. Vessel weighs in at around 16,000 lbs. Any ideas as to what RPM range I should run her at and what the fuel consumption might be?
Thanks,
Nightstalker
 
We are close in wieght at 16000 lbs. Best cruise will be at about 3200 rpm, speed should be 20+ knots with a fuel burn of 26 gph. Yes the big blocks like to drink fuel. Listen to your boat and you will find that sweetspot.
 
We are close in wieght at 16000 lbs. Best cruise will be at about 3200 rpm, speed should be 20+ knots with a fuel burn of 26 gph. Yes the big blocks like to drink fuel. Listen to your boat and you will find that sweetspot.
Thanks for the info. I'll keep a close ear on those engines.
Nightstalker
 
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