Thanks for the update

I think you will find that is/ was just a blower and a marinising kit bolted onto the current Humvee engine ( who manufacture the old 6.2-6.5 which was the engine GM dropped in favour of the Duramax)
Does a Humvee have a duramx now?

This is not too far away from what Mercruiser has offered in the past

Here's a company that if they made bigger engines you would be hearing more about them
OMC packaged these and sold them a few years ago.
They need to join 2 at the hip for a V12 6.4ltr 500HP all alloy, customiseable fuel curves ( stock engine has this)etc etc
http://www.steyr-motors.com/products/products.htm

Torque curves are a problem for diesels in a performance boat. They have a reputation for low end torque, but in reality, as a percentage of peak RPM, which in the bigger engines, is less than 3000 rpm, the low end torque doesn't look too good. Take a look at the torque curve on a 496, and it is almost flat all the way down to 1000 rpm. Now look at the torque curve for a Duramax, and it falls sharply below 1600 rpm. That means the diesel is going to have trouble getting out of the hole. Also it is going to need to be geared taller and propped bigger, because peak horsepower is at 3100 rpm, instead of 4800, which will make it coming out of the hole even worse.

Add to this the problem of outdrive drive torque capacity, and you can see why diesels have so far not been popular in sport boats. A stock Duramax with 360 hp, has a torque peak of 650 ft-lbs. That exceeds the torque capacity of even an expensive XR drive. The Duramax would have to be detuned to stay within an XR drive rating of 600 ft-lbs. So you'll have less performance than even a 496 Mag, with a much higher initial cost. Would you get your money back in fuel savings? Stay tuned.

Michael

We still offer Yanmar packages to the customer as well as have some pre-owned models for sale on our website with Yanmars. We have had much success with them and continue to work with Yanmar on creating high performance boats with diesel power.

Website

Yes I totally agree, the worlds funniest man Fabio Buzzi, who led the diesel thing on race boats all had trouble getting on the plane and having to ventilate the props etc.
I have watched Steyr engineers reprogramme the ECU on boats they pre delivers and adjust the torque curve to suit the application, do you get that with anybody elses?
Like I said if they built big ones I'm sure they would have a queue.

Check this one out. I am not sure how fast i will go.

http://cgi.ebay.com/ebaymotors/2001-...spagenameZWDVW

There are Cigarette stickers on the side of the boat, but according to Bud at Cigarette, the Condor hull was not made by them. That's getting pretty sleazy when you put another company's decals on your boat.

Michael

Swamp,

We are the distributor of these engines in the Caribbean. I recently Built one to complet a twin package in my scarab. The engines put out alot of torque despite the low hp. The 330HP puts out 525 ft lbs @ 1700RPM. Marine Diesel is currently working on a 350 hp package. Here are some pics. I will post a video of our start up in the shop.

An interesting possibility: http://www.feys.org/

Diesel Generator powering electric surface drives?

way too big and heavy for some applications, no different then the Yanmars Ive used in the past. Now at 550-600 hp that would have been perfect for my last application. So who's going to build one, so I dont have to use 3 BB diesels for my next boat.