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Old 14 September 2008, 23:37   #1
Country: USA
Town: Rhode Island
Make: avon
Length: 6m +
Engine: 90hp merc
Join Date: Mar 2006
Posts: 277
info on 733 diesel performance

Just wondering what type of speed and performance would you get from the diesel powerd hurricanes? Ive noticed that a lot of the diesels are converted to outboards. Why is that. I know that outboards will be that much more quicker and hence more fun but what about the larger diesel motors. Just wondering what someone woud expect from there boats. I know different uses will dictate a lot. just wondering if diesels a re a lot more work than outboards mayby. diesels no longer cheaper either.
Sunrider I tried to pm you, I always enjoy the info you have provided for us on here

learning to fly is offline   Reply With Quote
Old 15 September 2008, 02:44   #2
capntroy's Avatar
Country: USA
Town: Orange County, CA
Boat name: Northwind
Make: Northwind
Length: 10m +
Engine: Twin Yamaha 350's
Join Date: Feb 2008
Posts: 149
The only two Hurricanes that I have experience with are the 640's with the 130hp Volvo and duoprop set-up, they top out at about 23 knots with no weight onboard. Add a few people and you're lucky to get 18 knots.
I also ran a refurb'd 733 with a 300hp Yamaha diesel and Yamaha outdrive set-up that topped out at about 31 knots unloaded and 24-25 knots with 6 passengers.
My reasons for converting these boats to 4-stroke outboards are increased deck space, less maintenance costs, less fuel consumption, less noise, smoother running, quicker plane times and higher top end speeds.
The same 640 that did 23 knots with the Volvo diesel ran 51 knots with a 2-stroke 250hp outboard and currently does 28 knots with a 115hp 4-stroke outboard.

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Old 16 September 2008, 10:46   #3
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,618
Not to mention that the existing motors are probably thrashed within an inch of their life before being declared surplus...

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