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Go-fast houseboat (update)

Old 08-06-2006, 01:39 PM
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Default Go-fast houseboat (update)

Some of you might remember me posting some pics of my father-in-law's wild houseboat project. Well he finally got it in the water and we met up with him yesterday for some test runs. The boat is a 1989 38' Holliday Mansion houseboat powered with tripple Yamaha 250 HPDIs. Here are the pics from a while back.





The big question is..........Is it a GO-FAST houseboat? Considering it's size and 25,000 LBS weight with no fuel or water I would have to say yes. The boat ran 30 MPH on it's first run. The area where we were testing it was not a long enough space to get it trimmed out so I am sure we can get it a little faster. The engines are on jack plates. I was not on the boat when it was on plane sinse I was driving my boat so my wife could take the pictures so I don't know his fuel burn yet. I am sure it is not pretty. I will post his numbers when they are confirmed. I will also post some pics of the inside when he gets it cleaned up. Wait until you see the helm. No expense spared with wiring and electronics.






Old 08-06-2006, 01:44 PM
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Default RE: Go-fast houseboat (update)

Man, I'd love to take that to the Shark River and use it for the Mothership.
Old 08-06-2006, 01:46 PM
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Default RE: Go-fast houseboat (update)

That thing is a scream!!! It looks like one awesome ride!!!!
Old 08-06-2006, 02:02 PM
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Default Re: Go-fast houseboat (update)

Wahoo!

Everybody should have a Grandpa like that.
Old 08-06-2006, 02:06 PM
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Default Re: Go-fast houseboat (update)

Back in 1968, my best friend's father bought a 34' Trojan houseboat with twin 327 I-O's. We used to waterski behind it.
Old 08-06-2006, 02:23 PM
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Default RE: Go-fast houseboat (update)

Very cool.

Old 08-06-2006, 03:33 PM
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Default RE: Go-fast houseboat (update)

Something about a boat made by a company called "Holiday Mansion" with sliding glass doors and wood paneling inside with triple Yamaha 250's seems like a crime against nature.

Did somebody with a Bluewater Cruiser leave your father in law in his wake before the repower? Looks like he did a good job of it.
Old 08-06-2006, 05:57 PM
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Default RE: Go-fast houseboat (update)

Seacat FL - 8/6/2006 2:33 PM

Something about a boat made by a company called "Holiday Mansion" with sliding glass doors and wood paneling inside with triple Yamaha 250's seems like a crime against nature.

Did somebody with a Bluewater Cruiser leave your father in law in his wake before the repower? Looks like he did a good job of it.
The funny thing is that the boat was not re-powered. These boats came with twin I/Os which he didn't want. He bought the boat brand new in 1989 with no power. He didn't like the way a few things were done by the builder so he sarted on a few projects. One project lead in to another and so on. So this boat is 17 years old and this is the first time it was in the water. He did stop working on it for about 5 years when Hurricane Andrew destroyed his house.

The boat is an overkill, it has every imaginable bell and wistle. But when he builds something it is done to last. A project that may take the average boater a week to complete would take him 2 months. But I will tell you this, once the boat is dialed in and the interior is done it will be a solid boat. Here are a most of what he has installed if I can remember everything.

300 gallon fuel cap
15 gallon 2 stroke oil cap
100 gallon fresh water cap
water heater
Westerbeke generator
A/C and heat
water maker
ice maker
Lectra San waste treatment system
refigerator
propane stove
microwave
inverter system
automatic battery chargers
6 massive batteries (not sure of the size but they are huge)
radar
gps
forward and side looking sonar
depth finder
VHF

I'm sure I'm missing something. He is also going to be installing a home entertainment system with trackvision.

Let's go boating!
Old 08-06-2006, 07:00 PM
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Default Re: Go-fast houseboat (update)

So will you making any island crossings with it?
Old 08-06-2006, 07:13 PM
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Default Re: Go-fast houseboat (update)

Naaaa. I prefer to take my boat, it's much faster and uses less fuel. I don't need that much boat over there.
Old 08-07-2006, 12:06 AM
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Default Re: Go-fast houseboat (update)

How many times did he ad the "latest technology" only to change it aagina before the boat ever got wet?
Old 08-07-2006, 12:56 AM
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Default Re: Go-fast houseboat (update)

That has got to be the most asinine thing I have ever seen. Twin 250s maybe. But triples!!!. So he bought the houseboat NEW, spends the next 17 YEARS piddling around with it and never puts it in the water. Then he puts at least $45,000 dollars (750 hp) of engines on it so he can go 30 mph. I guess he needs it to go really fast so he can get to all the destinations that he couldn't get to in the last 17 years. I hope the boat and its components (holding tanks, cabinets, cabin structure, etc.) are structurally sound enough to go bouncing over waves and wakes at 30 mph. Hope his guest can hang on too. Probabally hard to make a sandwich or drink a beer underway.
Old 08-07-2006, 01:25 AM
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Default Re: Go-fast houseboat (update)

Way back in the late 60s or early 70s, Driftacurser had a commercial with a Cessna 150 on the front deck. The boat was fast enough for the plane to take off.

Many of the old house boats had twin V8 with outdrives.

He needs to move the fuel fill to the front upper deck in the middle so the flying tanker can fuel it.
Old 08-07-2006, 01:46 AM
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Default Re: Go-fast houseboat (update)

How much fuel does it hold?
The good thing is that he can run just the center engine and probabally make pretty decent "houseboat speed" without burning a barrel of fuel every hour.
He can fire up the outer engines to help him manoeuver.
Old 08-07-2006, 09:18 AM
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A Few Dollars - 8/6/2006 11:56 PM

That has got to be the most asinine thing I have ever seen. Twin 250s maybe. But triples!!!. So he bought the houseboat NEW, spends the next 17 YEARS piddling around with it and never puts it in the water. Then he puts at least $45,000 dollars (750 hp) of engines on it so he can go 30 mph. I guess he needs it to go really fast so he can get to all the destinations that he couldn't get to in the last 17 years. I hope the boat and its components (holding tanks, cabinets, cabin structure, etc.) are structurally sound enough to go bouncing over waves and wakes at 30 mph. Hope his guest can hang on too. Probabally hard to make a sandwich or drink a beer underway.
For some people, it's more about the journey than it is about the destination.
Old 08-07-2006, 09:20 AM
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A Few Dollars - 8/7/2006 12:46 AM

How much fuel does it hold?

ScarabChris - 8/6/2006 4:57 PM

300 gallon fuel cap
Old 08-07-2006, 10:47 AM
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Default Re: Go-fast houseboat (update)

That thing is wild. I have a friend who just sold his mid 80s Holiday Mansion 36, same hull, & bought a new Harboumaster 40 coastal cruiser. His HM 36 was unusual also. His was a very frugal boat on fuel. It had a single Volvo I/O DIESEL at somthing like 200hp. He did not cruise at any more than 8 kts but he only went to the fuel dock once, maybe twice, a year. He burned more feeding the genny than the propulsion engine & the boat got used every weekend.

750hp houseboat!!!! Rule of thumb WOT for an OB is 10% of rated hp i.e. WOT will be somewhere about 75GPH. So WOT that give about 4 hrs run time at 30mph or about 120 mles.

It will be interesting to see what the boat does when it is loaded to operate in the real world. 100gal water is over 800#. Figure about 1000# of personal stuff, food, misc supplies etc. plus passengers. 3000# more is not unrealistic. 1500 to 2000# is typical, not counting water, for an RVer with a similar length 5th wheel trailer.
Old 08-07-2006, 01:06 PM
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Default Re: Go-fast houseboat (update)

Mr. Demeanor - 8/6/2006 11:06 PM

How many times did he ad the "latest technology" only to change it aagina before the boat ever got wet?
Good question. The engines are 2003s. There were some problems with them right out of the box but nothing serious. However, Yamaha gave him hell about taking care of the issues. It's a good thing the boat still had some time left on the jacks because it took Yamaha months to work out his problems. He did purchase the extended warrenties as well.
Old 08-07-2006, 01:17 PM
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Default Re: Go-fast houseboat (update)

He was not looking to build a "Go-Fast" houseboat but he did build an overkill house boat. Someone mentioned its structural integrity. He had all the stringers, bulkheads and transom reinforced professionally. Believe me when I tell you the boat is solid. He put three engines so he could plane off if he wanted to but he has no intention to run the boat like you see in the picture for long periods of time. He wanted the boat to be reliable and still maneuverable even if one engine is down. Because let me tell you, that boat would be a nightmare to maneuver in tight places without multiple engines. As far as 45K to go 30 MPH goes. People spend a lot more than that for diesels to do the same thing. Besides, the 45K spent on the engines is a drop in the bucket compared to the total amount he spent on this thing.
Old 08-07-2006, 10:34 PM
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Default RE: Go-fast houseboat (update)

I love that houseboat!!! What a blast! I have a 37 Gibson with a single outboard. I would sure like the manuverability that triple set up would give.... not to mention the speed. I am topped out at around 8mph. Great job!!!


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