39 Diesel Rockit Update
07-22-2011 | 12:30 PM
#22
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From: Lake St. Clair
Yes and a 2004 design not a 2010 as with the Hustler so you cant really compare and the 39 is no longer in production. A 41SL ran 114 with 700's and is a bigger boat. SV43 low 120's with 725 Ilmors. Have always liked Joe and Hustler. He's always loved the diesels!! Good job Hustler and Mercury.
09-13-2012 | 12:12 PM
#24
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Joined: Mar 2008
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From: Traverse City MI
Also Glad to see diesel boats out there. THERE NEEDS TO BE MORE OF THEM! Seriously. Why are we so behind on this. We are in AMERICA, the so called best country out there and can't figure out how to make a twin engine diesel boat run well! 
Was embarrassing enough that Turbos took so long!
Glad to see Hustler and Outerlimits working on Diesel boats. Looking forward to more good news!
Was embarrassing enough that Turbos took so long!
Glad to see Hustler and Outerlimits working on Diesel boats. Looking forward to more good news!
09-13-2012 | 01:08 PM
#25
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Joined: Aug 2010
Posts: 52
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From: Calverton, NY
Pstorti,
Yes, we have run the boat with the updated 550 motors. The top speed was between the mid to high 80's and gets about 2 miles to the gallon at WOT. We are still tinkering with it because we think we can get a little more out of the boat.
Paul
Yes, we have run the boat with the updated 550 motors. The top speed was between the mid to high 80's and gets about 2 miles to the gallon at WOT. We are still tinkering with it because we think we can get a little more out of the boat.
Paul
09-13-2012 | 01:15 PM
#26
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Joined: Mar 2002
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From: Miami Beach
Are you playing with the setup or tinkering with the motors? Are those 550hp motors also Cummins 5.9's or something else? With all the aftermarket products available for the diesel pickups I would think it would be pretty easy to boost those engines up for more top end while still maintaining good cruising speed and economy. 2MPG at WOT is fantastic, I only get 1.6-1.8 depending on the load at WOT but I can get as much as 2.6 in the mid 30's with a light load. Keep us posted, and congrats on a great project.
09-21-2012 | 11:23 PM
#27
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From: Mt. Juliet, Tn
Are you playing with the setup or tinkering with the motors? Are those 550hp motors also Cummins 5.9's or something else? With all the aftermarket products available for the diesel pickups I would think it would be pretty easy to boost those engines up for more top end while still maintaining good cruising speed and economy. 2MPG at WOT is fantastic, I only get 1.6-1.8 depending on the load at WOT but I can get as much as 2.6 in the mid 30's with a light load. Keep us posted, and congrats on a great project.
09-22-2012 | 12:01 AM
#28
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Joined: Oct 2004
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From: Newbury Park, CA
550hp x 2 engines x .4 lbs/hp-hr / 7 lbs/gal = 62.9 gal/hr
85 mph / 62.9 gal/hr = 1.35 mpg < 2 mpg
Michael
09-22-2012 | 04:00 AM
#29
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From: Sweden
My 44 ft raceboat, with 2 x FPT 560, gets 1,43 mpg at 80 mph and 1,26 at WOT(85-88 mph depending on fuelload).
Never more than 1,65 mpg at any speed. Boat weighs 11000 lbs raceready, 220 gal of fuel, no crew.
http://www.offshoreonly.com/forums/g...ce-diesel.html
Never more than 1,65 mpg at any speed. Boat weighs 11000 lbs raceready, 220 gal of fuel, no crew.
http://www.offshoreonly.com/forums/g...ce-diesel.html
Last edited by 7075T6; 09-22-2012 at 04:07 AM.
