Diesel Application in a 30' Superboat
 

Rick or anybody:

What of the idea of rigging a 30' with a Yanmar 440 and an Arneson drive? Weight issues? Enough space in the engine compartment (62 inches needed I think)? CG problem? Cost?

Re: Diesel Application in a 30' Superboat
 

And Who Is Going To R & D This Boat, $$$$$, As For The Surface Drive Jc Will Not Get Involved, I Went That Road With Him. Put A 496 Ho In The Y2k And You Will All The Better For It. Save Your Money. The Y2k Is The Best Deal On The Market, With The 496 Ho.

Re: Diesel Application in a 30' Superboat
 

One of these w/ a konrad would work well.
Either in 300 or 400HP.
http://www.marinedieselusa.com/marin...pmengines.html

There is a dealer in freeport too!!!

Re: Diesel Application in a 30' Superboat
 

Volvo Penta dual prop drive and BIG Diesel would work well... :D
I got my ass kicked by a Sunseaker powered by one a couple of years ago... :rolleyes:

Re: Diesel Application in a 30' Superboat
 

A Konrad rep was at the shop last month in reference to deisel applications. Fairly simple. But the $$$$$$. But thousands of hours of play time can make it worth it.

Re: Diesel Application in a 30' Superboat
 

I think piece of mind is worth alot of $$$$$$$.

Re: Diesel Application in a 30' Superboat
 

But what kind of money? Guess I should be asking a Konrad guy.

Re: Diesel Application in a 30' Superboat
 

Too much!
Volvo Penta has been doing it for years...
I've got a boat builder friend that just powered one of his 42' 20 ton party barges with twin 350HP diesels and dual props.
The boat was just sea trialled and move real well.
32 knot cruise and 36 knot top end.
He is switching to dual prop out drives from inboards on all his boats.

Re: Diesel Application in a 30' Superboat
 

Konrads are about $11k + 2k for tranny.
These drives are tough as nails... military tested.

Anyone know how much an imco extreme cost or merc xr w/ ITS or max worx?

Re: Diesel Application in a 30' Superboat
 

But I'm not so sure the y2k is the right candidate, with it being so light weight. I could easily see twin diesels in a longer heavier boat.

I saw a 35 cafe racer w/ twin cats at the miami show in '93.
Top end wasn't there maybe mid 60s, but it could cruise forever at 10% under rpm redline. Most of our HP boats have very little resisitance, especially when on plane, compared to what the diesels are usually pushing around.

Re: Diesel Application in a 30' Superboat
 

So, we're talking about $13,000 for the drive system, plus about $20k for a Yanmar 440?

Re: Diesel Application in a 30' Superboat
 

20K for a Yanmar 440? is that right? sounds cheap.
And will it fit? thats an inline 6? could be too long?

Re: Diesel Application in a 30' Superboat
 

Apparently the measurements were taken and it will fit.

Re: Diesel Application in a 30' Superboat
 

From this ad the 440 looks like $31k.
http://www.simplicity-marine.com/yanmar.htm

Re: Diesel Application in a 30' Superboat
 

How about these?
They only show up to the 310HP with an outdrive on line, but the 370HP is basically the same engine. I'm sure it would couple up.
I would bet the Y2K would run well over 60mph with the 310 and near 70mph with the 370.
http://www.volvo.com/volvopenta/na/e...ndrive/d6-310/

Re: Diesel Application in a 30' Superboat
 

I imagine if the boat would run 70 then it would cruise all day at 60?

If the 440 is 31k then with the drive we're talking 44k. For 50 omthing you have the whole boat and 496.

Re: Diesel Application in a 30' Superboat
 

The question is, what are you trying to benefit by going to diesel?

Re: Diesel Application in a 30' Superboat
 

cost benefit, but over the short run there is none. if you kept the boat for 10 years, maybe, or if you wanted to sell it, maybe.

Re: Diesel Application in a 30' Superboat
 

Ok, Imagine a single diesel in a 34'. I read about one in POwerboat, cant remember what brand it was though.

Re: Diesel Application in a 30' Superboat
 

I hope it would have a bow thruster too....

I know i wouldn't want to be docking that thing every day.

Re: Diesel Application in a 30' Superboat
 

A buddy of mine retro fitted 2 Yanmar 315's into a Searay Pachanga. 454 to Yanmar is a direct swop, plugs into Merc harness. Also installed Diesel rated Bravo drives cost in install $59k. 8 gals an hour at cruise.Low 60's top end & incredible amount of torque. 2000hours/ 5 year warranty

Re: Diesel Application in a 30' Superboat
 

2000 hour warranty ??? Hmmmjmmmmmm, sounds interesting. ;)

Re: Diesel Application in a 30' Superboat
 

Aside from "ease of docking" it seems like there is no point to put twin diesels into a boat under 35 feet or so, unless you already have twin applications to start with.

Re: Diesel Application in a 30' Superboat
 

How about one of these? :cool:

http://www.volvo.com/volvopenta/na/e...ve/d6-350_dpr/

Volvo Penta states that this system is designed for over 45 knots to 60+knots... :evilb:

Re: Diesel Application in a 30' Superboat
 

That would push a 30 or 34 pretty good. Think about how it must LEAP on plane.

Re: Diesel Application in a 30' Superboat
 

Very nice for reliability and longevity but 45-60 knots your not going to be flying. Pat how much $$$$$. Perhaps you could put a pair in ????

Re: Diesel Application in a 30' Superboat
 

Gary, the 350HP Volvo Penta turbo diesel makes well over 600ftlbs of torque, probably more than your Merc 600SC.
Remember horsepower is a calculated number from torque and rpm; torque is a measured value and what really counts. This engine maxes out at 3500rpm thus its 350HP rating.
I would bet with the right gearing and props, a 30' Super would run well over 70mph and maybe even 80 with this package... :evilb:
As for the cost, I have no idea???
I have no desire to bolt a diesel in any boat at this stage of the game, but it was the subject of this thread... :drink:

Re: Diesel Application in a 30' Superboat
 

Just an opinion, a nice set-up on a 30-Y2K would be a Volvo 8.1GXi (420HP) coupled to their DPR Drive (high-speed drive w/ X-act Steering).

Re: Diesel Application in a 30' Superboat
 

I would agree, but I don't think the DPR drive is available with gasoline engines yet.
Volvo Penta did have a DPX drive offered with a 600HP BBC a few years back.
I wonder how a 30' Super would run with a Volvo dual prop?
That sounds like a good subject for a new thread...

Re: Diesel Application in a 30' Superboat
 

Not to get TOO off topic but what is everyone's thoughts on a 24 with say a Marine Diesel-USA Hammerhead or Tigershark mounted to a Konrad (or any beefed up drive)? Is it worth it? Will the speeds still be respectable?

Re: Diesel Application in a 30' Superboat
 

Pat.....Yes you're correct Volvo no longer offers the DPX nor do/did they offer the DPR drive with their gas packages. Not that I'm a huge Volvo fan, but maybe it will be an option in the future!?!
Out of curiousity, I too would be interested to know how a Y2K runs with a Merc BIII or Volvo DP . I cannot imagine with its light-weight and balance, that a Y2K would benefit much from the extra stern-lift of a duoprop......but it'd probably corner great!?!............Jason

Re: Diesel Application in a 30' Superboat
 

I don't think its worth it on such small boats.
Its quite costly and you wont see resale on the back end.
BTW, I do like that package alot.:)

Re: Diesel Application in a 30' Superboat
 

I guess testing a 30' Y2K with a Bravo III would be easy being that most, if not all, have been built with Bravo drives. I don't believe that too many Bravo IIIs have been used in performance (60+mph) applications though. And I do know that they can not take the abuse that most of us dish out... :rolleyes:
Now, the Volvo dual prop out drives are awesome units and to my knowledge, do run well at speeds above 60mph. Hell, we know that Batboat kicks azzzzz... :drink:

Re: Diesel Application in a 30' Superboat
 

The batboats were what I had in mind while thinking of a Y2K/DPR combo.

Re: Diesel Application in a 30' Superboat
 

Time to revisit this thread. As I understand there is a 600 HP Yanmar Diesel on the market. Hook that up to the Sage 8 drive........... :D Pat your good with these forumlas, HOW FAST ?????

Re: Diesel Application in a 30' Superboat
 

Not as fast as you might think. Diesels just can't spin the RPM's gas engines do. So your left with the only option of using transmissions. There ends up being a tradeoff w/ a single speed tranny of top speed or all around performance. A multi speed tranny might be the ticket but how much is that big ass diesel and drive package going to weigh?

Re: Diesel Application in a 30' Superboat
 

I still think a V8 by marine diesel would work.
Jassman is looking into putting 3 of these into a Nortech.

http://www.marinedieselusa.com/PPT-Engine-200.jpg

Right now no one really wants a diesel HP boat. But things will be changing. Audi just won the 12hr of Sebring with one.
http://www.audi.com/audi/com/en1/exp...t_Sebring.html

Diesel engines can spin a much bigger prop than a bravo drive can fit. There has to be a better alternative.

A single diesel y2k should be able to run mid 60s cruise all day long.

Re: Diesel Application in a 30' Superboat
 

Sutphen builds their 28 Sportfish with a 315 Yanmar and claims 50+ mph. I got a price of C$40,000 for the 310 Volvo engine/drive/steering package that Pat pictured above at the Toronto Boat Show this year, so that's about U.S.$35,000. I figured converting my 26' Sutphen to a 350hp Volvo I might see 55-60 mph. The Volvo package is for a complete re-power or new installation including gauges, electronic contols, hyd. steering, props, closed cooling and exhaust. Very nice.
http://www.sutphenpowerboats.com./28.htm
http://www.volvo.com/NR/rdonlyres/15.../D6350_DPR.pdf

Re: Diesel Application in a 30' Superboat
 

So who's gonna try the first diesel app at Superboat? Any takers?

Re: Diesel Application in a 30' Superboat
 

I think a more interesting project and probably better suited for this boat would be 750hp split between 2 drives.