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-   General Boating Discussion (https://www.offshoreonly.com/forums/general-boating-discussion-51/)
-   -   Another cool project from Marker 17 Marine (https://www.offshoreonly.com/forums/general-boating-discussion/314266-another-cool-project-marker-17-marine.html)

Dean Ferry 06-25-2014 06:48 AM
Interesting to say the least. The fuel burn of the (4) gas burning O/Bs vs. the (2) Cummins diesels will tell the story.... No doubt access to maintain is easier. Wonder how it effected the boat's CG?

sommerfliesby 06-25-2014 06:57 AM
Originally Posted by pbekemeyer (Post 4143190)
What size are the outboards? I heard Mercury going to build 400 plus hp .
I'm gonna go ahead and guess 300s...what with the big decals that say "300" on the back of each of them...

hogie roll 06-25-2014 07:07 AM
Originally Posted by pstorti (Post 4143185)
not in any way more efficient than a pair of diesels with surface drives that is a stupid statement.
What he said

Sportboats 06-25-2014 09:38 AM
I believe all the boats were three engine packages.

DirtyMoney 06-25-2014 09:42 AM
No some were available as twin cummins.

Sydwayz 06-25-2014 09:53 AM
Is it as fast as this one? :D

https://www.youtube.com/watch?v=sX7tc3A57xc

Sportboats 06-25-2014 10:07 AM
1 Attachment(s)
[ATTACH=CONFIG]525186[/ATTACH]
Originally Posted by DirtyMoney (Post 4143461)
No some were available as twin cummins.
I have never seen a twin but anything is possible.

Jupiter Sunsation 06-25-2014 10:39 AM
Originally Posted by Dean Ferry (Post 4143333)
Interesting to say the least. The fuel burn of the (4) gas burning O/Bs vs. the (2) Cummins diesels will tell the story.... No doubt access to maintain is easier. Wonder how it effected the boat's CG?
Even if the fuel burn is higher on the gas OB's the overall cost should be less considering the long warranty on the OB's, the ease of service (everybody can and will work on Merc OB's).

BTW great idea......plenty of those 48's are getting to be 8-10 years old and will have tired power (gas 525's or the diesels) so you basically built yourself a Cig Huntress for about 1/5 the cost!

pstorti 06-25-2014 11:37 AM
Originally Posted by Dean Ferry (Post 4143333)
Interesting to say the least. The fuel burn of the (4) gas burning O/Bs vs. the (2) Cummins diesels will tell the story.... No doubt access to maintain is easier. Wonder how it effected the boat's CG?
4 300 Verados wide open more or less 100GPH
2 550 Cummins wide open 60 GPH

I don't understand why everybody says outboards are easier to maintain, diesels don't break down. They both require the same maintenance but the diesel intervals are longer.

Jupiter Sunsation 06-25-2014 12:39 PM
Originally Posted by pstorti (Post 4143531)
4 300 Verados wide open more or less 100GPH
2 550 Cummins wide open 60 GPH

I don't understand why everybody says outboards are easier to maintain, diesels don't break down. They both require the same maintenance but the diesel intervals are longer.
The Cummins aren't as bulletproof as the OB's. Diesels don't break down? Bobthebuilder blew one up in his 50 Nortech after 500 hours, my buddy has them in a diesel flybridge cruiser and they have been fair at best with reliability. Also keep in mind the diesels are more way more complex than an old Detroit Diesel from 25 years ago and they don't love high rpms, throttles nailed to the dash for long stretches.

In my opinion, if you want trouble free boating, go OB whenever possible.


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