Fountain and their 48 diesel cruisers
#11
Registered
#13
Registered
Join Date: Jul 2001
Location: Clearwater Florida
Posts: 193
Likes: 0
Received 0 Likes
on
0 Posts
I have quite a bit of first hand knowledge on why the switch was made.
Firstly, Let me start of by saying the QSB480 is a 3400 RPM engine. When they released the 480 it was decided to raise the RPM mainly so the same transmissions could be used that were being used with the QSB 425.
Also, the QSB is a much cleaner engine. The QSB has common rail, where the Yanmar still has a mechanical pump with electronic controls. Fountain was getting complaints of smoke, fuel slicks in marinas, and dirty transoms.
Thirdly, The QSB's peak torque comes in 200 RPM sooner than the Yanmars, making it plane quicker.
Lastly, After Reggie sea trialed the first QSB 48, he was so impressed by the improvements, he said to take Yanmar off the price list.
Firstly, Let me start of by saying the QSB480 is a 3400 RPM engine. When they released the 480 it was decided to raise the RPM mainly so the same transmissions could be used that were being used with the QSB 425.
Also, the QSB is a much cleaner engine. The QSB has common rail, where the Yanmar still has a mechanical pump with electronic controls. Fountain was getting complaints of smoke, fuel slicks in marinas, and dirty transoms.
Thirdly, The QSB's peak torque comes in 200 RPM sooner than the Yanmars, making it plane quicker.
Lastly, After Reggie sea trialed the first QSB 48, he was so impressed by the improvements, he said to take Yanmar off the price list.
#14
SeaRay Sundancer
Gold Member
Join Date: Nov 2005
Location: SW Missouri
Posts: 2,914
Likes: 0
Received 0 Likes
on
0 Posts
the QSB's weigh 1350lbs and are 5.9 liters. Max 480 hp. and 940 tq
you can get a QSC that is 1975lbs 8.3 liters and makes 600hp. and 1327 tq
three QSB's are only 100 lbs heavier than two QSC's but make a combined hp of 1440 to the QSC's 1200. I think I would still rather have two of the larger motors and less overall engine and drive weight, than deal with three of the smaller motors. ??? anybody
there is also the engine deminsions...other wise why not go with a couple 10.3 liter monsters.
of course this is all moot since reggie, in his brilliance, doesnt offer the twin bigger ones that we know of
you can get a QSC that is 1975lbs 8.3 liters and makes 600hp. and 1327 tq
three QSB's are only 100 lbs heavier than two QSC's but make a combined hp of 1440 to the QSC's 1200. I think I would still rather have two of the larger motors and less overall engine and drive weight, than deal with three of the smaller motors. ??? anybody
there is also the engine deminsions...other wise why not go with a couple 10.3 liter monsters.
of course this is all moot since reggie, in his brilliance, doesnt offer the twin bigger ones that we know of
Last edited by tblrklakemo; 02-29-2008 at 12:22 PM.
#15
Gold Member
Gold Member
Join Date: Feb 2004
Location: Hollywood, MD
Posts: 1,212
Likes: 0
Received 0 Likes
on
0 Posts
What caught my eye was their claim to a "World Record", Key West to Cancun. 405 miles in 8 hrs, 36 minutes. Anyone know who would have sanctioned or verified that claim. APBA/UIM has set rules for such long distance runs in the past. Did they or some other recognized body verify Fountains claim?
Bob
Bob
The challenge is out there reggie.
#16
Gold Member
Gold Member
Join Date: Feb 2004
Location: Hollywood, MD
Posts: 1,212
Likes: 0
Received 0 Likes
on
0 Posts
I also hold many "world records" from my pier to various other bars around the area. All different size and classes of boats as well. I'm really a jack of all trades when it comes to world record setting.
#17
Registered
No offense, some of you guys still just don't believe. Engine rpm is not relevant, it's prop speed.
With your gas powered boats you change gear ratios on your #3,4,5 & 6 drives to get optimum prop speed to get max speed. Why does that concept get lost on a diesel engine with some of you?
How fast do you props spin on some of your gas boats???
Please, I want to make a point here - help me out?
With your gas powered boats you change gear ratios on your #3,4,5 & 6 drives to get optimum prop speed to get max speed. Why does that concept get lost on a diesel engine with some of you?
How fast do you props spin on some of your gas boats???
Please, I want to make a point here - help me out?
Last edited by HabanaJoe; 02-29-2008 at 12:47 PM.
#18
21 and 42 footers
Platinum Member
I read an article just in the last couple weeks that the 48 EC was available in twin 480's......top end was reported the low50's where as the triple ran about 65. (can't remember where I read it)
#19
arneson-industries.com
Offshoreonly Advertiser
I have quite a bit of first hand knowledge on why the switch was made.
Firstly, Let me start of by saying the QSB480 is a 3400 RPM engine. When they released the 480 it was decided to raise the RPM mainly so the same transmissions could be used that were being used with the QSB 425.
Also, the QSB is a much cleaner engine. The QSB has common rail, where the Yanmar still has a mechanical pump with electronic controls. Fountain was getting complaints of smoke, fuel slicks in marinas, and dirty transoms.
Thirdly, The QSB's peak torque comes in 200 RPM sooner than the Yanmars, making it plane quicker.
Lastly, After Reggie sea trialed the first QSB 48, he was so impressed by the improvements, he said to take Yanmar off the price list.
Firstly, Let me start of by saying the QSB480 is a 3400 RPM engine. When they released the 480 it was decided to raise the RPM mainly so the same transmissions could be used that were being used with the QSB 425.
Also, the QSB is a much cleaner engine. The QSB has common rail, where the Yanmar still has a mechanical pump with electronic controls. Fountain was getting complaints of smoke, fuel slicks in marinas, and dirty transoms.
Thirdly, The QSB's peak torque comes in 200 RPM sooner than the Yanmars, making it plane quicker.
Lastly, After Reggie sea trialed the first QSB 48, he was so impressed by the improvements, he said to take Yanmar off the price list.
I think Cummins also caught the kick some *** bug from Mercury. I think Yanmar is going to suffer some market share loss as Cummins engines are better and less expensive.