Diesels for boats
04-04-2008, 07:50 AM
#1
Platinum Member
Platinum MemberThread Starter
Diesels for boats
what are the all the Duramax Marinized diesel websites..or guys that are perfecting a motor, tranny combo..Thanks Jeff
Start'n to get ready for next year? Sorry I just couldn't resist 
04-04-2008, 09:48 PM
#4
For the love of GOD.
Get the new Ivecos that are racing in p1. More powerful, lighter and cleaner the Yanmar 480s. Then throw on some twin-disc tans and asd 8's with vented props. Done and Done.
Get the new Ivecos that are racing in p1. More powerful, lighter and cleaner the Yanmar 480s. Then throw on some twin-disc tans and asd 8's with vented props. Done and Done.
04-05-2008, 07:23 AM
#8
Platinum Member
Platinum MemberThread Starter
I know..
If I could find a straight 6 that gave me 550-600 hp and weighed the same or LESS as my 480hp Yanmars that would be the ticket...oh ya..has to run well also without all that black smoke..so not turned up.
04-05-2008, 02:07 PM
#10
Registered
Jass
Humor me here
The Yanmar weighs 1411 lbs without gear @ 480hp
The "C" weighs 1975 lbs with a gear @ 600 hp (I think that is a standard big reduction gear???)
So, the Yanmar with a gear must weight 1,800 +/- lbs with a gear.
Use a lighter gear on the Cummins and the weight difference is probably like leaving me (220 lbs) on the dock when you go out!!!!!!
Couple that with the lighter lay up you mention and you might be able to invite me!!!!
So, I think what you want is available but I still think how the boat manufacturers are applying the diesels is what your problem is with speed not the "C" series engines.
I also think if you put the QSM11 at 715 hp in there with the right 2 speeds the boat could fly. I know they add about 1,000 lbs but the 700hp at 2,500 rpm with all the extra cubes will work much better with the 2 speeds as you have the torque to carry through the shift.
Again, I could be wrong and I would never tell anyone how to spend their money without doing it first myself but I think the "C"'s are a safe bet for what you want?
Joe Gere
Humor me here
The Yanmar weighs 1411 lbs without gear @ 480hp
The "C" weighs 1975 lbs with a gear @ 600 hp (I think that is a standard big reduction gear???)
So, the Yanmar with a gear must weight 1,800 +/- lbs with a gear.
Use a lighter gear on the Cummins and the weight difference is probably like leaving me (220 lbs) on the dock when you go out!!!!!!
Couple that with the lighter lay up you mention and you might be able to invite me!!!!
So, I think what you want is available but I still think how the boat manufacturers are applying the diesels is what your problem is with speed not the "C" series engines.
I also think if you put the QSM11 at 715 hp in there with the right 2 speeds the boat could fly. I know they add about 1,000 lbs but the 700hp at 2,500 rpm with all the extra cubes will work much better with the 2 speeds as you have the torque to carry through the shift.
Again, I could be wrong and I would never tell anyone how to spend their money without doing it first myself but I think the "C"'s are a safe bet for what you want?
Joe Gere
