Author Topic: FREE GT150 Build: Live and Let Fly  (Read 46 times)

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Offline Addvanced

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FREE GT150 Build: Live and Let Fly
« on: June 02, 2026, 11:31:02 AM »
Hey boys/gals, I joined this forum a while ago to read up on things and do some research, but this is officlally my first post! My name is Rob and I run the youtube channel ADDvanced; I grew up on the Madison chain of lakes, spent my childhood going to tunnel hull races around the country, developed a career in product design working for Milwaukee Tool, Harley, and tons of other Wisconsin companies, and I spent the past decade or so as an industrial designer at Mercury Marine in FDL; design lead for many of Mercury Racing's products during this time period, as well as lead designer on controls/rigging, tillers, and the Avator program. You can see my work here, and yes, I am always looking for new clients:

www.gruvdesign.com

ANYWAY, back to the boat stuff; I have restored quite a few boats; my first was a 50s El Rae where I learned the ropes, and then tackled a 78 Sleekcraft Aristocrat ModVP/tunnel, later a Sleekcraft SST tunnel where I did a full composite rebuild of the hull using coosa and nidacore but still havne't finished rigging this one; the interior quotes of $5k for vinyl seating put the brakes on that one for now. I picked up a cheap $500 CeeBee Avenger with a 150 XR2, restored a 50s hydroplane with a Lightning engine/quicksilver hydro mid/gearcase, and last summer I picked up a FREE Chris Craft Stinger 222 with OMC V8.

With so many projects in the works, I really didn't want another boat at all, but a buddy sent me a FB marketplace listing for a FREE GT150, the pics were bad, but it wasn't too far away, so I went to look at it. Here are my adventures so far, hope you dig it!


Current Questions I'm looking for help with:
1. Has anyone done more of a GT160 interior in a GT150? Not a huge fan of rear facing seats, would prefer a rear bench. I found the plans for the original seats  here
2. Does anybody know of a location in the midwest to acquire more Coosa/Nidacore? Last time I had it shipped from Florida and the shipping costs were more than the materials.
3. This is more engine specific, but as you'll see in the video I now own 3 90hp Mercury Tower of Powers; I'm looking for more information on these engines but it's sorta scattered, does anybody have a definitive resource? I searched a lot on the Scream & Fly forums, but haven't found a ton of real solid info yet.

Anyway, happy to join the Glastron Gang! Hope to have this in the water by July 4th, super tight deadline but that's my goal!
« Last Edit: June 02, 2026, 11:47:22 AM by Addvanced »

Offline nes-cv23

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Re: FREE GT150 Build: Live and Let Fly
« Reply #1 on: June 02, 2026, 02:38:58 PM »
There is not a lot of room in the 150s. But when I did my 150 I made a pair of buckets and mounted them a little farther back for some more leg room and it worked great for us. But then there was only two fo us in the boat at any time.
As far as koosa board if your willing to make a trip to Fargo ND you can go to the factory and get there seconds for $90 a sheet.
Any thickness, but they are usually not full 4x8 sheets but at $90 each its worth the trip.  I usually would get 10 sheets and ask anyone close if they would share the gas for the trip.
Its called Space Age Synthetics
« Last Edit: June 02, 2026, 03:09:06 PM by nes-cv23 »
84 ssv-151, 76 cvx-16 ss, 77cvx-20 jet, 90 CSS-19, 78 cv-23, 77 gt-150, 2-78 cvx-16, 79cvx-16, 79 cvz-18,  73 cv-16, 74 cv-18, 89 219 Futura, 76 gt-150 jet, 79 cv-23, 02 Gx-225,  1980 intimidator = done!.. 79 hvp175   Now  done.  Starting over with my 4th boat, restored 78 cv-23.

Offline Hyperacme

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Re: FREE GT150 Build: Live and Let Fly
« Reply #2 on: June 03, 2026, 10:39:27 AM »
Welcome to the forum ...

Offline thedeuceman

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Re: FREE GT150 Build: Live and Let Fly
« Reply #3 on: June 08, 2026, 11:20:23 AM »
Look forward to seeing some pictures when you get it on the water, we live here in St. Paul Minnesota, but occasionally we have one of our little glass runs up at Lake magnor near Clearlake, Wisconsin.


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Joe
75 CV16 "Gregg's Boat"
75 GT150 "SeaDeuced"... Its Back !!
92 16CSS "Attitude Adjustment" is for sale
75 CV-16V8, Project
74 CV-16... its Purple !