Moderated Discussion Areas
  ContinuousWave: Post-Classic Whalers
  Diesel Powered 23

Post New Topic  Post Reply
search | FAQ | profile | register | author help

Author Topic:   Diesel Powered 23
jaccoserv posted 07-24-2003 12:36 AM ET (US)   Profile for jaccoserv   Send Email to jaccoserv  
Did anyone know such a beast existed?

jaccoserv posted 07-28-2003 03:00 PM ET (US)     Profile for jaccoserv  Send Email to jaccoserv     
So am I the only one surprised that Whaler made a diesel powered boat?
David Pendleton posted 07-28-2003 06:36 PM ET (US)     Profile for David Pendleton  Send Email to David Pendleton     
No. I've seen at least two of them on yachtworld.

I thought it was cool, too. I wonder about that engine, though. I don't know of any other boat that used it, Whaler or otherwise. I don't think Mercury even offers it anymore.

When I first saw one, I immediately thought of that awful gas-to-diesel conversion GM did with their 6-cyl engine back in the 80's. I think Oldsmobile was the only one to use it. Pure junk.

If I could replace the 5.7L in my Conquest with, say, a Cummins diesel, that would be perfect.

Merc_Fan posted 07-28-2003 07:11 PM ET (US)     Profile for Merc_Fan  Send Email to Merc_Fan     
These MerCruiser Diesel Sterndrives are 4.2 liter Isuzu diesel engines marinized by Mercury; turbocharged and aftercooled, producing 225 hp @ 3800 rpm at the prop.
So few of these Conquests were made with this engine power option they should all be considered prototypes.
Still, at 39 large, it seems a bargain for someone looking for a safe, long range pocket cruiser.
North Beach posted 07-29-2003 02:24 PM ET (US)     Profile for North Beach    
I for one thinks its cool--never aware that BW did that. Wonder what type of performance, crusing speed et al. 100 gallons tank may be a little light, depnds on cruise speed.

Sure wish they had more photos though. Its a straight inboard ?

petter5 posted 05-18-2004 01:30 PM ET (US)     Profile for petter5  Send Email to petter5     
It exsist, I own one: 23 walkaround 1992 powered with Volvo - Penta AQAD 41 duoprop turbo diesel .- top speed about 355-35 knots

you can se photos of the boat at this link:

Fuel consumption is less than 35 liters of diesel per houer at 30 knots ,,,


erik selis posted 05-18-2004 01:48 PM ET (US)     Profile for erik selis  Send Email to erik selis     
Beautiful boat there petter5 and welcome to the forum!

I have seen similar larger Whalers in Holland also with Diesel engines.


erik selis posted 05-18-2004 01:56 PM ET (US)     Profile for erik selis  Send Email to erik selis     
Here's a 23-foot Conquest with a 4.2L 250-hp Mercruiser Diesel.

-Go to this link:

-Then go to the "Occasions" menu and scroll down until you see the 23-foot Conquest with diesel engine. The specs and pictures are there.

I think you will find many Whalers with diesels in Europe just as you will find many more cars with diesels compared to the States.


petter5 posted 05-18-2004 02:26 PM ET (US)     Profile for petter5  Send Email to petter5     
Hi Merc_Fan !

You is wrong about the 4,2 liter mercruiser. It's not based on a Isuzu diesel. The engine is a Italian produced VM - diesel engine see:

/ Petter Neumann / Norway

TDB7117 posted 05-18-2004 02:30 PM ET (US)     Profile for TDB7117  Send Email to TDB7117     
It's a shame that they don't make this boat anymore, at least not for us Americans. With the price of gas these days, a diesel makes perfect sense, especially on a boat that size or larger. I'd be the first in line to buy a new 23' diesel powered, Boston Whaler Conquest.
gf posted 05-18-2004 03:02 PM ET (US)     Profile for gf  Send Email to gf     

That 23 Conquest in MA was for sale for about 3 years before they finally dropped the price so low that someone jumped on it.

I am sure we will see more diesel powered recreational boats on the water. I really like the new 300 HP Cummins Mercruiser diesel sterndrive:

petter5 posted 05-18-2004 03:20 PM ET (US)     Profile for petter5  Send Email to petter5     
Turbo diesel engines in boats abowe 22 feet is the future.
I recently replaced my old volvo penta 310 hp v-8 with a new mercruicer 4,2 liter turbo diesel ( bravo I ) and the boat was just like new. Top speed is excact the same, but owerall performance is mutch better. The best thing is the lov dieselfuel consumption. I don't have to spend so mutch time at the marina filling up with gasoline anymore, and I dont have to bring the same amount of fuel to go where I want. Where i before needed 100 galleons of gas to go, it's enough with 60 galleons of diesel,,,, :-)

Post New Topic  Post Reply
Hop to:

Contact Us | RETURN to ContinuousWave Top Page

Powered by: Ultimate Bulletin Board, Freeware Version 2000
Purchase our Licensed Version- which adds many more features!
© Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000.