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Fountain and their 48 diesel cruisers

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Old 02-12-2007, 02:05 PM
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Thanks, thought maybe them. Average speed was 46.8 MPH.

Jass, how bought we break your new boat in and go beat that? I will help pay the bills.
Bob
Count me in !!! Jeff you supply the boat and Bob and I will supply the fuel .
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Old 02-12-2007, 02:50 PM
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I hear that Fountain going to produce a 43 Express it's all on the drawing board but I think its a good idea becase they're such a streach from the 38 to 48.
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Old 02-29-2008, 12:57 PM
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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.
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Old 02-29-2008, 01:17 PM
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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

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Old 02-29-2008, 01:33 PM
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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
Fountain still hasn't been able to touch my "world record" title. My pier to the tiki bar in 28 minutes on a 48' SEA RAY. We even took it easy leaving my creek as to not break up the neighbors boats....

The challenge is out there reggie.
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Old 02-29-2008, 01:35 PM
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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.
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Old 02-29-2008, 01:44 PM
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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?

Last edited by HabanaJoe; 02-29-2008 at 01:47 PM.
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Old 02-29-2008, 03:35 PM
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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)
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Old 02-29-2008, 04:43 PM
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Quote:
Originally Posted by 302SR1 View Post
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.
BINGO!

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.
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Old 02-29-2008, 06:08 PM
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Another thing about Cummins, there parts are a lot cheaper than Yanmar's. And they have a better dealer network, in the US at least.
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