06-29-2011, 06:38 AM
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#1
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mariahsam is currently offline
Status: Stowaway
Join Date: May 2011
My Year: 1998
My Model: Jubilee
My Engine: 5.7 Mercruiser
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1998 Jubilee Max Speed
I just bought a 1998 Jubilee with a 21 pitch prop. It did well empty, developing 40 mph at 4300 RPM, but when I loaded it up, it was lethargic. My 5.7L was maxing out at 3500 to 3800 RPM, it was sluggish, the prop was cavitating ... A BIG MESS! I switched to a 15 pitch prop and what a difference! Fully loaded, that is 9 people and 50 gallons of fuel, it pulled strong, pulled a skier, pulled a raft and was maxing out at 4300 RPM and 35 MPH.
However, a couple of deck-boat owners told me that they are running 19 pitch props and fully loaded they are making 45 to 50 MPH at 4500 RPM. True or boasting? I'd appreciate candid advice.
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