1 engine vs 2
#1
Registered
Thread Starter
Join Date: Dec 2007
Posts: 187
Likes: 0
Received 0 Likes
on
0 Posts
1 engine vs 2
hey all i have a 27ft fletcher v hull with fixed surface drive and single yanmar diesel 440 running about 60mph i was thinking of upgrading to twin 440s on fixed surfacedrives
would the xtra weight kill the boat
or is twin fixed drives adviseable
i would like to hear your what you guys think and what kind of speeds i would get
should i or should i not
o the current all in weight is 5000lbs
cheers gerard
would the xtra weight kill the boat
or is twin fixed drives adviseable
i would like to hear your what you guys think and what kind of speeds i would get
should i or should i not
o the current all in weight is 5000lbs
cheers gerard
#2
Registered
Join Date: Jul 2009
Location: Grosse Pointe Farms, MI
Posts: 1,570
Likes: 0
Received 2 Likes
on
2 Posts
hey all i have a 27ft fletcher v hull with fixed surface drive and single yanmar diesel 440 running about 60mph i was thinking of upgrading to twin 440s on fixed surfacedrives
would the xtra weight kill the boat
or is twin fixed drives adviseable
i would like to hear your what you guys think and what kind of speeds i would get
should i or should i not
o the current all in weight is 5000lbs
cheers gerard
would the xtra weight kill the boat
or is twin fixed drives adviseable
i would like to hear your what you guys think and what kind of speeds i would get
should i or should i not
o the current all in weight is 5000lbs
cheers gerard
How much does that Yanmar 440 weigh? We had a 26' with twin 350's and it didn't mind the weight on the transom at all. The boat ran great, but I'm guessing that the diesels weigh a bit more than a SBC.
#7
Registered
Join Date: Aug 2009
Posts: 89
Likes: 0
Received 0 Likes
on
0 Posts
Yes, but probably not at 80+ mph.
700 hp by cca 5.500 lb will be probably 85 mph or more.
I am hear, that two classic surface drives are the best of the best, but one it is "murder" for fast boats.
700 hp by cca 5.500 lb will be probably 85 mph or more.
I am hear, that two classic surface drives are the best of the best, but one it is "murder" for fast boats.
Last edited by sinus; 08-07-2010 at 01:00 AM.
#8
Registered
Thread Starter
Join Date: Dec 2007
Posts: 187
Likes: 0
Received 0 Likes
on
0 Posts
thanks for your replys guys
i had thought of one big v8 but at todays gas prices over here is $10 a gallon
the fixed drive im using at present is brilliant at low speeds tho anything over 50 in a chop becomes hard work
the diesel engine is 1000lbs i can cruise at 50mph for 20miles and use 5 gallon of diesel witch costs less than $4 dollars a gallon
cheers gerard
i had thought of one big v8 but at todays gas prices over here is $10 a gallon
the fixed drive im using at present is brilliant at low speeds tho anything over 50 in a chop becomes hard work
the diesel engine is 1000lbs i can cruise at 50mph for 20miles and use 5 gallon of diesel witch costs less than $4 dollars a gallon
cheers gerard