View Poll Results: Which motor should I put in my 47 Fountain Flat Deck??
1350 Sterlings (or similar)
29
53.70%
777ci NA All Motor
16
29.63%
None of the above
9
16.67%
Voters: 54. You may not vote on this poll
1350hp Sterlings or 777ci NA all motors???
03-04-2009, 10:24 AM
#31
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Thank you for ALL of the positive comments guys!!!! There are so many different directions to go on this project, that it is really hard to decide.
I can see now that I should have posted a few more choices on the motor selection pole. Some good points have been raised... A few of you mentioned Cummings as an option. I grew up working on turbo based motors and have manufactured my own turbo motors via CAD-CAM (drag motors). On a twin turbo set up I could get about 800hp with 1200tq out of the 5.9 diesels. However... I'd be running the piss out of them (over 48lbs of boost!!)... and still not hitting my MPH target. The diesels would need 2 or 3 speed trannies as well... I have not ruled this out as an option, but... I'd like something loud enough to tick off the neighbors as well.
This is kind of hindsight on my part... but something that we really have not talked about are turbo set ups?? I have experience with TT designs and custom EFI set ups. What if I through caution to the wind and put together my own TT package? Is there something that draws the offshore crew away from going a gas turbo route? I like turbo's because you can adjust the boost from the cockpit. Using a 632 I can get an economical 850hp from the low boost setting.... all the way up to 1350hp on a high boost setting.... all with the touch of a button. Thoughts??
I can see now that I should have posted a few more choices on the motor selection pole. Some good points have been raised... A few of you mentioned Cummings as an option. I grew up working on turbo based motors and have manufactured my own turbo motors via CAD-CAM (drag motors). On a twin turbo set up I could get about 800hp with 1200tq out of the 5.9 diesels. However... I'd be running the piss out of them (over 48lbs of boost!!)... and still not hitting my MPH target. The diesels would need 2 or 3 speed trannies as well... I have not ruled this out as an option, but... I'd like something loud enough to tick off the neighbors as well.
This is kind of hindsight on my part... but something that we really have not talked about are turbo set ups?? I have experience with TT designs and custom EFI set ups. What if I through caution to the wind and put together my own TT package? Is there something that draws the offshore crew away from going a gas turbo route? I like turbo's because you can adjust the boost from the cockpit. Using a 632 I can get an economical 850hp from the low boost setting.... all the way up to 1350hp on a high boost setting.... all with the touch of a button. Thoughts??
03-04-2009, 10:34 AM
#32
Thank you for ALL of the positive comments guys!!!! There are so many different directions to go on this project, that it is really hard to decide.
I can see now that I should have posted a few more choices on the motor selection pole. Some good points have been raised... A few of you mentioned Cummings as an option. I grew up working on turbo based motors and have manufactured my own turbo motors via CAD-CAM (drag motors). On a twin turbo set up I could get about 800hp with 1200tq out of the 5.9 diesels. However... I'd be running the piss out of them (over 48lbs of boost!!)... and still not hitting my MPH target. The diesels would need 2 or 3 speed trannies as well... I have not ruled this out as an option, but... I'd like something loud enough to tick off the neighbors as well.
This is kind of hindsight on my part... but something that we really have not talked about are turbo set ups?? I have experience with TT designs and custom EFI set ups. What if I through caution to the wind and put together my own TT package? Is there something that draws the offshore crew away from going a gas turbo route? I like turbo's because you can adjust the boost from the cockpit. Using a 632 I can get an economical 850hp from the low boost setting.... all the way up to 1350hp on a high boost setting.... all with the touch of a button. Thoughts??
I can see now that I should have posted a few more choices on the motor selection pole. Some good points have been raised... A few of you mentioned Cummings as an option. I grew up working on turbo based motors and have manufactured my own turbo motors via CAD-CAM (drag motors). On a twin turbo set up I could get about 800hp with 1200tq out of the 5.9 diesels. However... I'd be running the piss out of them (over 48lbs of boost!!)... and still not hitting my MPH target. The diesels would need 2 or 3 speed trannies as well... I have not ruled this out as an option, but... I'd like something loud enough to tick off the neighbors as well.
This is kind of hindsight on my part... but something that we really have not talked about are turbo set ups?? I have experience with TT designs and custom EFI set ups. What if I through caution to the wind and put together my own TT package? Is there something that draws the offshore crew away from going a gas turbo route? I like turbo's because you can adjust the boost from the cockpit. Using a 632 I can get an economical 850hp from the low boost setting.... all the way up to 1350hp on a high boost setting.... all with the touch of a button. Thoughts??
http://www.youtube.com/watch?v=p4mYH...e=channel_page
03-04-2009, 04:18 PM
#34
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GO FIND A 1350 OR 777 NA, WITH 2 YEARS AND 5000 HOURS OF PEACE OF MIND, IM BULLET PROOF, EVERY 100 HOURS YOU ARE PUTTING IN 10K WAIT 20K TWO MOTORS IN YOUR BOAT JUST IN THE MOTORS. THATS NOT FUN. IT ALL IN WHAT YOU WANT. WITH CUMMINS YOU CAN GO AND DO MORE THAN THOSE BIG GAS MOTORS. JUST MY 2 CENTS....
03-04-2009, 04:20 PM
#35
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[QUOTE=TeamPSI;2813844]Thank you for ALL of the positive comments guys!!!! There are so many different directions to go on this project, that it is really hard to decide.
Between the Sterling's and the 700s I would also say Sterling all the way.
like Eddy and others have said just component wise 5k+ for huge one off custom cranks ,$450.00 per Carrillo mile long connecting rod,valve train costs etc.you can have 100k into each engine alone real easy.
Not to mention the additional ware and tear with all that piston speed even when only running at 5000 rpms with that huge stroke.
I would run the Sterling's for a season and than change her out to a high dollar hydraulic set up and pretty much forget about pulling valve covers for several hundred hrs.
I too like turbos and their potential in the marine environment.
Turbos are the ticket for high hp, you can defiantly safety make way more than 1350hp with a twin turbo 600 ci engine by accident .
But you wont get that big power sound like you will with a NA or blown mill,very quiet in comparison.
Good Luck!
Between the Sterling's and the 700s I would also say Sterling all the way.
like Eddy and others have said just component wise 5k+ for huge one off custom cranks ,$450.00 per Carrillo mile long connecting rod,valve train costs etc.you can have 100k into each engine alone real easy.
Not to mention the additional ware and tear with all that piston speed even when only running at 5000 rpms with that huge stroke.
I would run the Sterling's for a season and than change her out to a high dollar hydraulic set up and pretty much forget about pulling valve covers for several hundred hrs.
I too like turbos and their potential in the marine environment.
Turbos are the ticket for high hp, you can defiantly safety make way more than 1350hp with a twin turbo 600 ci engine by accident .
But you wont get that big power sound like you will with a NA or blown mill,very quiet in comparison.
Good Luck!
03-04-2009, 06:39 PM
#36
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I'm with Eddie and WildWarrior. Those large CI are bastards as far as parts, super tall deck blocks, non-standard bore spacing, long rods, high piston speeds, giant cranks (tons of mallory in them), long pushrods, custom intakes, etc.
Most guys shy away from the Big Chief heads for longevity due to the pushrod angles and lengths. I would like to know the "secrets" of long life on a Big Chief headed engine though. Jesel has some trick valve train stuff.
Superchargers are the way to go. NA can make horsepower, but you have to run more rpms(ruins peoples motors). The only reason racers don't run superchargers is because the rules don't let them (unless NOS), and you don't have to abide by sanction body rules. And you can get a flatter torque curve with the supercharger.
I know Sterling has a great reputation, but there are other good builders as well.
Lower rpms with hydraulic lifters is what ya want for lower maintenance. Maybe consider meth injection.
Not to mention, superchargers look cool. If you spend all that money, you want some recognition for it.
Most guys shy away from the Big Chief heads for longevity due to the pushrod angles and lengths. I would like to know the "secrets" of long life on a Big Chief headed engine though. Jesel has some trick valve train stuff.
Superchargers are the way to go. NA can make horsepower, but you have to run more rpms(ruins peoples motors). The only reason racers don't run superchargers is because the rules don't let them (unless NOS), and you don't have to abide by sanction body rules. And you can get a flatter torque curve with the supercharger.
I know Sterling has a great reputation, but there are other good builders as well.
Lower rpms with hydraulic lifters is what ya want for lower maintenance. Maybe consider meth injection.
Not to mention, superchargers look cool. If you spend all that money, you want some recognition for it.
05-15-2009, 06:54 PM
#38
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So whats it going to be?
This threads f-ing hilarious.
If Im spending YOUR money Ill take the 1300's every day!
Ever get price on a rebuild for a set of sterling 1300's?
The Merc 1075 is anywhere between 23& 33K an engine. at 125 hours max it needs a 50 hour tighten up as well... (thats not a sterling 1300 BTW its a 1074)
http://www.seriousoffshore.com/forum...t=1075+rebuild
The cost of buying a package is one thing- the cost of living with it is another entirely.
Ill put 125 hours on one of my 2 boats from April-November every year.
If Im living with it fueling it and rebuilding it, or financing it, then Ill check into reality hotel and go NA. (actually NA fuel injected is what you want)
Youll get enough performance to be in the top 2-8% of guys on any given body of water at any given time- and a reasonable TRUE cost per hour to operate.
But if it's your money - then I'd spare NO expense! Go turbine.
UD
If Im spending YOUR money Ill take the 1300's every day!
Ever get price on a rebuild for a set of sterling 1300's?
The Merc 1075 is anywhere between 23& 33K an engine. at 125 hours max it needs a 50 hour tighten up as well... (thats not a sterling 1300 BTW its a 1074)
http://www.seriousoffshore.com/forum...t=1075+rebuild
The cost of buying a package is one thing- the cost of living with it is another entirely.
Ill put 125 hours on one of my 2 boats from April-November every year.
If Im living with it fueling it and rebuilding it, or financing it, then Ill check into reality hotel and go NA. (actually NA fuel injected is what you want)
Youll get enough performance to be in the top 2-8% of guys on any given body of water at any given time- and a reasonable TRUE cost per hour to operate.
But if it's your money - then I'd spare NO expense! Go turbine.
UD
