diesel repower with Volvos

jcooper · Post by **jcooper** » Mon Aug 22, 2005 3:06 pm

Has anybody repowered yet with the new D6's. We have them in a Sunseeker 35' and it runs 45mph....it does have outdrives but I wonder what the D6's would do in a Bertram 33?

franklyprice · Post by **franklyprice** » Mon Aug 22, 2005 4:45 pm

I admit to not being up on the cutting edge of most things. What are D6's? Assuming they are diesel engines, who makes them and what HP are they? And I have to wonder what the beam and displacement are on your sunseeker? Frank Price

franklyprice · Post by **franklyprice** » Mon Aug 22, 2005 4:48 pm

OK, I normally just click on the arrow for the latest post , so missed the subject line. Pardon the dumb question. Still , what is the HP rating for these engines? Frank Price

jcooper · Post by **jcooper** » Tue Aug 23, 2005 3:32 am

They are the new common rails from Volvo

Post by **dougl33** » Tue Aug 23, 2005 3:35 am

To answer your question, I'd have to say that no one has re-powered with the D6's yet. Most of the re-powers seem to be with Yanmar, Cummins, and to a lesser extent Cats. Are you in the market for a 33 and thinking of re-powering? What do the D6's put out for HP? Regards, Doug L. 1986 33 Bertram FBC Queen Elizabeth Marblehead, MA

jcooper · Post by **jcooper** » Tue Aug 23, 2005 3:58 am

Yes I am looking at a 1987 on the west coast, I like the two cabin arrangement and the kids love to sit in the front of the helm on the flybridge! The D6 I have in the Portofino is the D6-370hp, and it's performance is amazing!

Post by **dougl33** » Tue Aug 23, 2005 4:10 am

John, What are the specifics on the D6? I'm assuming its an inline 6. What is the displacement? I know that the 6 cyl Cummins (5.9's), Yanmars (6LPA and 6LY2A), and Cats (3116 and 3126) all fit. If the Volvos are of similar dimensions they should fit. If you're happy with them and you can get them easily serviced in your area I think you should be OK. Is this the boat you're considering: http://www.yachtworld.com/core/listing/ ... =1295&url= Regards, Doug L. 1986 33 Bertram FBC Queen Elizabeth Marblehead, MA

jcooper · Post by **jcooper** » Tue Aug 23, 2005 4:17 am

That's the one.

Post by **dougl33** » Tue Aug 23, 2005 4:24 am

Upon further review, I personally think 370hp is a bit overkill for these hulls. Lets be realistic, how often will the conditions allow one to cruise at the 26 or 27 knots that 370hp will let you do? 300-330hp will get you a cruise of 21-23 knots which is a good speed for these hulls. If it were me, Id' save myself some money and go with something a bit smaller/fuel efficient. Regards, Doug L. 1986 33 Bertram FBC Queen Elizabeth Marblehead, MA

franklyprice · Post by **franklyprice** » Tue Aug 23, 2005 6:48 am

Doug, I've been thinking a lot about the amount of power I'd want and I think if and when I repower I'm going for 370 or more. I want the speed.Of course by then, I may feel differently. Frank Price

Post by **dougl33** » Tue Aug 23, 2005 6:49 am

Frank, Realistically, how often do you think you'll be able to cruise at more than 21 or 23 knots up here in the NE? Regards, Doug L. 1986 33 Bertram FBC Queen Elizabeth Marblehead, MA

sbeer · Post by **sbeer** » Tue Aug 23, 2005 7:06 am

Hope you guys don't mind me chimming in, but I would have to agree with Frank. I cruise at 23 to 24 knots all the time. Not many days that I can't. I am up here in Jersey and If I had the option to repower I would go with the 440 yanmars. Man 29knot cruise is got to be outstanding in a 33 sportfish. Out of all the canyon trips I have done in the past since I have bought the boat, I would say that a small handfull I was not able to run cruise, and that was only in going either one way or another. The other trips I could have cruised 29 knots easy. 2 1/2 hour to the canyon. Ya baby, thats what I'm talking about. To have that extra power when you need it is a definate plus. The only problem is the more h.p, the more your apt to blow it up. Same block as the 300 but with less iron. What they call a gernade. Thats about the only reason why I would really look into it. Mike Mike Lawrence 81 sportfish 33' shot'n'beer

photo finish · Post by **photo finish** » Tue Aug 23, 2005 7:32 am

speed rules!!!!!i would vote for the 440 yanmars Tim Stamm Photo Finish 1981 33' Bertram FBC

jcooper · Post by **jcooper** » Tue Aug 23, 2005 8:04 am

I mainly cruise Puget Sound.....intercoastal. A good cruise range would be 26-29.....am I kidding myself with wanting to do it with a 33 Bertram. I like the boat, the look, the layout, and the open cockpit lends itself to our style of cruising. I know the Volvos, but would consider other options if the arguement was good enough....and the price was right. Any thoughts?

Post by **dougl33** » Tue Aug 23, 2005 8:25 am

Well to use one of Frank's favorite quotes anything is possible. And like the old saying goes, speed costs money. How fast do you want to go? I think the 300-330 hp Yannies and Cummins can be had brand new (with tranny) for about $22K-$24K per engine. A pair of factory re-built Cummins with tranny and warranty can be had for around $18k-$19K per engine. Brand new 440hp Yannies were upwards of $32K (with tranny) per engine at the last boat show I was at. How much do the Volvos go for? If you search this site you'll find a thread where I spoke with the mechanic who did a gas to diesel repower on an FBC with 420hp 3126 Cats. That job cost over $70K and the boat cruised around 26-27 knots. He also claimed that he could have made the boat faster with the 370hp Cummins due to the weight savings but that the owner wanted to go with Cats. Don't forget that with any gas to diesel re-power you'll also have to replace the gennie at at least $6K-$7K. So even if you go cheap with the smaller rebuilt Cummins and can get a diesel gennie for $6K you're still looking at $42K before you put a wrench on the boat. How much are you willing to drop on this project? Regards, Doug L. 1986 33 Bertram FBC Queen Elizabeth Marblehead, MA