Diesels
 

Are these guys still in business, thanks Jeff

http://www.seatek-spa.com/motori_gb.htm

Re: Diesels
 

check www.fbdesign.com :drink:

Re: Diesels
 

Hi Jeff,
A little twist to your question but do you or anyone else know the total cost to repower my TopGun with Yanmars and new drives.
Paul.

Re: Diesels
 

Just trade your boat in on mine, Im planning on doing a 52' Nortech with either twin V-8 900CRM's or most likely the V12 1550 CRM Mann Diesels as my next project.

To anwser your Q's, not exacty sure but motors, drives, trannies and including some profit around 135k. No labor involved and I know other factors will come into play during the rerig process. Merry Christmas. :drink: Jeff

Re: Diesels
 

WOW!! you haven't even used it yet and you are planning the next one??? I thought I was bad. Have some fun with it :evilb: Merry Xmas :drink:

Re: Diesels
 

Im trying to find a diesel that is as low weight per/hp as the Yanmars.... http://www.mandiesel.com/mardata2.htm the 1550 weighs too much 4750lbs.. Also need more rpms.. :cool:

Re: Diesels
 

Very cool, but those have got to be heaaaavy.

Re: Diesels
 

Jeff, Those diesel are way to big for that boat. It'll weigh it down too much and it will not run right. if you want my further opinion send dme an email. Not trying to sell anything, just help an OSO'er out.

Merry Christmas

Re: Diesels
 

What do you think of a rotary engine , belt driven turbocharged diesel made out of titanium......high rpm,capable of 1,000 HP and more ?

www.regtech.com

Re: Diesels
 

Not being built and not proven yet. There are a bunch of people out there with designs trying to get them liscensed out to detroit and japan.
I woudl also like to see the MYT(http://www.angellabsllc.com) and
Cyclone (http://www.cyclonepower.com)

Re: Diesels
 

check with super turmoli on the board he can answer your sea tek questions

Re: Diesels
 

Did anything exciting ever come out of the marinized Duramaxs?

Re: Diesels
 

I can't see spending that much on my TG. Give me a year then I will be ready to move up. I only bought this boat in June of this year so I better run it for a season. Do you know Brian Connolly ? I met him and his wife Karen in Laconia .
Brian was running a 39 but said he also had a 43 with Yanmars in it . What kind of $ are we looking at ? :drink:

Re: Diesels
 

the Seateks are quite popular in european race boats. They are still in business, Buzzi was once involved in the company.

Quite heavy and at more than 800HP not as reliable as you would expect from a diesel.

Look at the Hustlers, they have a big experience with diesel powered boats and now they are building a diesel race boat.

heiko

Re: Diesels
 

I have seriously looked at Hustler, and they do make a extremely nice boat, love their 50... but for what I'm looking at Nortech's cockpit and cabin is larger in thier 4300 than the 50 Hustler. It's all a trade off, do I want a boat with 5' extra length so I can shoe horn a third large diesel in to go 8 mph faster or be more balanced, better ride, less maint. and so on. Nortech's been great to me and support is as good as it gets. Their 50 is actually a 52', which is too large for my type of boating. So If I want to go faster I need a more hp/weight ratio twin diesel package which is not in existance as of yet. Some truck based platforms will easily install in a trip application, and waiting for the arrival of those. Jeff

Re: Diesels
 

hustler will display an all new 41 at the show. Two yanmar diesels, huge cabin with big headroom. and the price is better than the nortech's. just me 2cts

heiko

Re: Diesels
 

At present the headroom in the 50 Hustler is less than my Nortech 4300. As to price, Hustler wasn't even close, the present 50' boat, now used, is for sale in the classified's, 679K beautiful boat, but no where what I paid on my new 07 4300. 600k-1M is rediculous what you have to pay for some of these boats. Thanks for your help. Jeff

Re: Diesels
 

Why does no one look at the 44mag?
Its beamy enough to take on big diesels to cruise in the 40s-50, and you could squeeze in a turbine for when you want some WOT! :cool:
This could probably be done for about 2-3 mil.

Re: Diesels
 

Jeff, Seatek are still in business but my feeling is that they are not doing extremely well. They were doing much better a few years ago when diesels were allowed and competitive in racing and also when they had a huge market with boats which were intended for... well, let's just say fast transport of stuff. Since those two markets dried out, it's been more difficult for Seatek.

But the engine itself is good and the 850hp. version is reliable enough. It's not as reliable as a big CAT diesel that will turn 2300 rpm but way more reliable than a gas BB with similar power, let's not even talk about torque. The thing is, you need a good mechanic who knows the engine inside out and who has a good ear which means a lot of experience with the engine, including experience running it. And with the distribution network the way it is, I am not sure you would have anyone like that in the U.S.

I know Joe from Hustler has been wanting to do a 49 Widebody with triple Seateks for long time but is unsure of product support. It would be a rocket for such a large boat (50' x 10+' and approx. 25 000 lbs) and I'm guessing roughly 100 mph but the idea behind diesels is to reduce downtime and if you can't get assistance or parts within 24 hours anywhere in the country, you're not really reaching that objective.

What I can tell you is that Hustler's Widebody can accommodate two big diesels such as the ones you are looking at. I know that CAT C18 diesels fit and MAN 1100s probably do as well. Speed would probably be between 70 and 75 mph.

But for the moment, nothing beats a Yanmar and that is partly why a quad Yanmar installation is such a great idea. In terms of cost and maintenance, it is not really more expensive than two big diesels, it is better in terms of consumption and much better in terms of performance. A properly set-up quand Yanmar Widebody with a lighter layup will do 85 mph, something that this hull will never do with big CATs or MANs.

Re: Diesels
 

BTW, Seatek have been working on that V12 for at least 5 or 6 years now. Every time I speak to them at autumn boat shows, they say next year but that the prototype is already on the dyno. As I said, it's been on the dyno for 5 or 6 years now.

Fabio Buzzi started Seatek with few other people and designed the first engine, the design which is still essentially the same as the straight-6 block they use today. But lately, it seems that even Fabio has given up on them and has used more Yanmars, Isotta Fraschinis and CATs.

Also, stay away from twin-turbo versions which look tempting and can make 1200+hp. for around 1900lbs. This is a race engine and you all know what that means.

Re: Diesels
 

Again thanks for your insite. I apprieciate the knowledge coming from someone who has a great deal of experience in this field. What other diesels are out there besides the smaller version size wise (315-370hp version) that could possibly fit 4 in a 4300. I agree on the Yanmar's being great for resale, power and weight ratio. Thanks Jeff

Re: Diesels
 

I am still waiting to hear about the MTI that had the D-max in it...Last i saw the boat was rigged but not run.. Wonder if gale banks 750 hp 1000lbs d-max will work..

Re: Diesels
 

Jeff, a quad installation in a 4300 is going to be very tough. It would have to be straight-6 engine because they are long and narrow. This is why they are such a great idea for performance boats where you usually have plenty of length but little width. A quad Yanmar setup is very complicated to rig in a 49 Hustler and leaves very little room to play with. Access to engines is good because the configuration is what can be described as double stagger but everything needs to be placed to within a fraction of an inch.

Unfortunately, I don't think one would gain anything by going for the 370hp. version. I believe the width is virtually the same, it's the same block.

I'm not sure, but you could probably fit three Yanmars in a 4300V. Perhaps the bulkhead would have to be moved forward resulting in a smaller cockpit (and a larger invoice) but you'd probably be able to touch 90, all other things being equal. Which is a big assumption because these boats were initially designed for gas engines and outdrives and were never really intended to carry that much weight in the back.

Another thought is Hustler's 444. I hear that the mods have been beneficial and that she runs properly now. I believe the engine compartment is the same as on their 50 meaning that trip Yanmar + ASD8 installation is probably possible. If the 50 with that package runs 85+, then the 444 would probably show some interesting numbers. That is once again assuming that it could run as well as the 50 because this extra length may precisely be what is enabling the 50 to carry all this weight so well.

As far as other options are concerned, I know that Buzzi has used Cummins QSM11s on several boats. He used them while they were 635hp. and got some interesting speeds with his RIB 42', I think it was just under 70 mph. Now that they are 715hp, maybe two of those in a 4300V could be an interesting solution.

Re: Diesels
 

Jass have you talked to Pat about the 43? It is going to be 9'6" wide from what I hear. You probly have and he laughed at you about the Diesels, I can see it now.

Re: Diesels
 

He laughs at everything, not a serious bone in the guy.
What do I look like, a guinee pig. Jeff

Re: Diesels
 

Ok I guess I should have know better than even bring it up:rolleyes:

Re: Diesels
 

You misunderstood my post, I probably should have put one of :D behind it. I prefer not be the first buyer in anyone's boat line up. The only person I know that did really well is John-Mentlepause. Sunsation did an excellent job from tooling, bottom design and so on, it took alot longer than anticipated, but sure turned out great. I'm sure Pat's new 43 will turn out excellent as well. We are still good friends and talk on a bi-weekly basis. I'm presently working on another project at the moment. Jeff

Re: Diesels
 

Call Ted Mcintyre with MTT. With the size hull your looking to run I would atleast think about turbines.
www.marineturbine.com
One turbine would make as much power as 2 diesels at 1/3 of the weight.Just My 2 :D