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Glastron GT-150 - Hull mods to make it handle 150 HP
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Re: Glastron GT-150 - Hull mods to make it handle 150 HP
Fast progress, looking great!
'78 Viking/ '98 Mercury 225 ProMax
500+ pictures of build: https://www.flickr.com/photos/152974368@N02/albums/72157708863869223
Videos of build: https://www.youtube.com/channel/UCWRAfGZVq4a3R-W7JdJeFeQ/videos?view_as=subscriber
500+ pictures of build: https://www.flickr.com/photos/152974368@N02/albums/72157708863869223
Videos of build: https://www.youtube.com/channel/UCWRAfGZVq4a3R-W7JdJeFeQ/videos?view_as=subscriber
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Re: Glastron GT-150 - Hull mods to make it handle 150 HP
I went out the other day and as I expected, no speed increases. The boat ride slightly higher in the bow but the stern stayed the same. I had to over trim to get bow up so definitely more setback if I were to keep this motor.
Now I will put the 200 on with hydraulic steering .
Stay tuned...
[ Post made via iPhone ]
Now I will put the 200 on with hydraulic steering .
Stay tuned...
[ Post made via iPhone ]
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Ron Pratt
Okanogan, WA
Viper/ 2.5L 200 Merc (SOLD)
1991 "the last" Virage/ 15" 280
2003 9’ Mini Virage/ 15 hp Honda 4-stroke
1989 Voyager/ 300 Promax
1989 HST / 2.5L 200 Merc
http://www.prattcustoms.com
Okanogan, WA
Viper/ 2.5L 200 Merc (SOLD)
1991 "the last" Virage/ 15" 280
2003 9’ Mini Virage/ 15 hp Honda 4-stroke
1989 Voyager/ 300 Promax
1989 HST / 2.5L 200 Merc
http://www.prattcustoms.com
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Re: Glastron GT-150 - Hull mods to make it handle 150 HP
How wide did the pad end up being? No change in speed, but how did it affect handling and planing time?
[ Post made via Android ]
[ Post made via Android ]
1988 Canadian Edition Vision Sold
1990 Hydrostream Virage Stage 3 Turbo
1990 Hydrostream Virage Stage 3 Turbo
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Re: Glastron GT-150 - Hull mods to make it handle 150 HP
The pad ended up being 8” wide. It cornered much better as it was laying on the edge of the pad.
I just didn’t have the speed to lift
[ Post made via iPhone ]
I just didn’t have the speed to lift
[ Post made via iPhone ]
Ron Pratt
Okanogan, WA
Viper/ 2.5L 200 Merc (SOLD)
1991 "the last" Virage/ 15" 280
2003 9’ Mini Virage/ 15 hp Honda 4-stroke
1989 Voyager/ 300 Promax
1989 HST / 2.5L 200 Merc
http://www.prattcustoms.com
Okanogan, WA
Viper/ 2.5L 200 Merc (SOLD)
1991 "the last" Virage/ 15" 280
2003 9’ Mini Virage/ 15 hp Honda 4-stroke
1989 Voyager/ 300 Promax
1989 HST / 2.5L 200 Merc
http://www.prattcustoms.com
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- Hydrostream know it all
- Posts: 512
- Joined: Feb 10, 2012 8:01 pm
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Re: Glastron GT-150 - Hull mods to make it handle 150 HP
Finally got enough parts to get this old girl up to speed!!!
Bought a new "take off" lower unit from a dealer and got the nose cone, torque tab, and cavitation plate "wings" TIG welded on. Now to get the bulk of the fairing done with epoxy. Will only use a skim coat of auto body glazing to finish the body work.
The foot throttle, jack plate, transom stiffeners, pro trim and sea star PRO are all here now. Aluminum fuel tank is welded up and ready to install.
I disassembled the trailer, sand blasted, and am painting it red with hand stripes I'll put on it. Relocated the axle as far back as possible as it was tongue light with the 80.
I have 2 ea. 2.5L 200 power heads and a 2.5L 150 EFI powerhead to choose from.
This day job is really cutting into my rigging time.
I'll post more as I get things assembled.
Bought a new "take off" lower unit from a dealer and got the nose cone, torque tab, and cavitation plate "wings" TIG welded on. Now to get the bulk of the fairing done with epoxy. Will only use a skim coat of auto body glazing to finish the body work.
The foot throttle, jack plate, transom stiffeners, pro trim and sea star PRO are all here now. Aluminum fuel tank is welded up and ready to install.
I disassembled the trailer, sand blasted, and am painting it red with hand stripes I'll put on it. Relocated the axle as far back as possible as it was tongue light with the 80.
I have 2 ea. 2.5L 200 power heads and a 2.5L 150 EFI powerhead to choose from.
This day job is really cutting into my rigging time.
I'll post more as I get things assembled.
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- lower.jpg (79.41 KiB) Viewed 18616 times
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- powerheads.jpg (81.81 KiB) Viewed 18616 times
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- trailer blasted.jpg (88.14 KiB) Viewed 18616 times
Ron Pratt
Okanogan, WA
Viper/ 2.5L 200 Merc (SOLD)
1991 "the last" Virage/ 15" 280
2003 9’ Mini Virage/ 15 hp Honda 4-stroke
1989 Voyager/ 300 Promax
1989 HST / 2.5L 200 Merc
http://www.prattcustoms.com
Okanogan, WA
Viper/ 2.5L 200 Merc (SOLD)
1991 "the last" Virage/ 15" 280
2003 9’ Mini Virage/ 15 hp Honda 4-stroke
1989 Voyager/ 300 Promax
1989 HST / 2.5L 200 Merc
http://www.prattcustoms.com
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- Hydrostream know it all
- Posts: 512
- Joined: Feb 10, 2012 8:01 pm
- Location: Sitka Alaska / Okanogan,WA
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Re: Glastron GT-150 - Hull mods to make it handle 150 HP
Well I’ve been fighting the red paint on the trailer for 2 weeks!!
Two coats of epoxy primer went perfect. First coat of single stage red, fish eyed horribly. Like grease was smeared on it.
Anyway it ended up being the primer. 8 light coats later, I have a red trailer!!
Broke out my “never used “ pinstripe brushes and striping enamel and went to town. Not perfect but not horrible.
Got the jack plate mounted, mid and lower mocked up and installed.
With jack full up and motor on highest setting on jack, I’m even with the pad.
Got the solid mounts installed before calling it a night.
The 16 gal fuel tank got welded up and the lower unit is in primer.
[ Post made via iPhone ]
Two coats of epoxy primer went perfect. First coat of single stage red, fish eyed horribly. Like grease was smeared on it.
Anyway it ended up being the primer. 8 light coats later, I have a red trailer!!
Broke out my “never used “ pinstripe brushes and striping enamel and went to town. Not perfect but not horrible.
Got the jack plate mounted, mid and lower mocked up and installed.
With jack full up and motor on highest setting on jack, I’m even with the pad.
Got the solid mounts installed before calling it a night.
The 16 gal fuel tank got welded up and the lower unit is in primer.
[ Post made via iPhone ]
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Ron Pratt
Okanogan, WA
Viper/ 2.5L 200 Merc (SOLD)
1991 "the last" Virage/ 15" 280
2003 9’ Mini Virage/ 15 hp Honda 4-stroke
1989 Voyager/ 300 Promax
1989 HST / 2.5L 200 Merc
http://www.prattcustoms.com
Okanogan, WA
Viper/ 2.5L 200 Merc (SOLD)
1991 "the last" Virage/ 15" 280
2003 9’ Mini Virage/ 15 hp Honda 4-stroke
1989 Voyager/ 300 Promax
1989 HST / 2.5L 200 Merc
http://www.prattcustoms.com
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- Hydrostream know it all
- Posts: 512
- Joined: Feb 10, 2012 8:01 pm
- Location: Sitka Alaska / Okanogan,WA
- Has thanked: 5 times
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Re: Glastron GT-150 - Hull mods to make it handle 150 HP
Went to Washington for the holidays and picked up a fiberglass alien cowl (top only) for $25.00 . It was at the prop shop in Spokane.
Someone bondo’d it to the bottom 4” of a late 90’s cowl so it would latch on a 90’s bottom. The sides slid in surprisingly well. The alien cowl is about 4” longer so they centered it and stuffed kitty hair bondo in the gap.
It never had a front cover so I pulled a mold off my 280 cowl and laid up one.
I started scraping off the spray paint and found nice metal flake .
I have it coming back to Alaska via Alaska air cargo. It’s in Seattle waiting for cargo space to get home.
Once back home, I pulled a mold off my Alien skirt and will lay up a part this week.
I plan on molding my own bottom cowl that will be a 2 piece like the factory ‘97 one utilizing these mounting points.
I found retro alien decals I have coming this way. $65.00 for the set isn’t bad!!
[ Post made via iPhone ]
Someone bondo’d it to the bottom 4” of a late 90’s cowl so it would latch on a 90’s bottom. The sides slid in surprisingly well. The alien cowl is about 4” longer so they centered it and stuffed kitty hair bondo in the gap.
It never had a front cover so I pulled a mold off my 280 cowl and laid up one.
I started scraping off the spray paint and found nice metal flake .
I have it coming back to Alaska via Alaska air cargo. It’s in Seattle waiting for cargo space to get home.
Once back home, I pulled a mold off my Alien skirt and will lay up a part this week.
I plan on molding my own bottom cowl that will be a 2 piece like the factory ‘97 one utilizing these mounting points.
I found retro alien decals I have coming this way. $65.00 for the set isn’t bad!!
[ Post made via iPhone ]
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Ron Pratt
Okanogan, WA
Viper/ 2.5L 200 Merc (SOLD)
1991 "the last" Virage/ 15" 280
2003 9’ Mini Virage/ 15 hp Honda 4-stroke
1989 Voyager/ 300 Promax
1989 HST / 2.5L 200 Merc
http://www.prattcustoms.com
Okanogan, WA
Viper/ 2.5L 200 Merc (SOLD)
1991 "the last" Virage/ 15" 280
2003 9’ Mini Virage/ 15 hp Honda 4-stroke
1989 Voyager/ 300 Promax
1989 HST / 2.5L 200 Merc
http://www.prattcustoms.com
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Re: Glastron GT-150 - Hull mods to make it handle 150 HP
Very cool! Cant wait to see the process and how it all comes out.
-Kevin
Project Vulture | Project Vector | Project Vamp | Project Vixen
The Vulture Wish List | Project CobraJet
1977 HydroStream Vulture - Worlds longest ongoing project.
1982 Hydrostream Vector
1982 Hydrostream Vamp
1973 Hydrostream Vixen
1976 CobraJet Jet Boat - Outboard conversion project
1976 Pontoon - aka The Family Truckster
Project Vulture | Project Vector | Project Vamp | Project Vixen
The Vulture Wish List | Project CobraJet
1977 HydroStream Vulture - Worlds longest ongoing project.
1982 Hydrostream Vector
1982 Hydrostream Vamp
1973 Hydrostream Vixen
1976 CobraJet Jet Boat - Outboard conversion project
1976 Pontoon - aka The Family Truckster
-
- Hydrostream know it all
- Posts: 512
- Joined: Feb 10, 2012 8:01 pm
- Location: Sitka Alaska / Okanogan,WA
- Has thanked: 5 times
- Been thanked: 158 times
- Contact:
Re: Glastron GT-150 - Hull mods to make it handle 150 HP
The cowl showed up today and I HAD to put it on a standard cowl bottom to see how it looked. OMG!!!! Yuck!!!! It did actually latch down. Time to slice and dice...
Compared to my 280, the bottom lip slopes .
Compared to my 280, the bottom lip slopes .
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- 280.jpeg (122.39 KiB) Viewed 18574 times
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- IMG_3061.jpg (93.31 KiB) Viewed 18578 times
Ron Pratt
Okanogan, WA
Viper/ 2.5L 200 Merc (SOLD)
1991 "the last" Virage/ 15" 280
2003 9’ Mini Virage/ 15 hp Honda 4-stroke
1989 Voyager/ 300 Promax
1989 HST / 2.5L 200 Merc
http://www.prattcustoms.com
Okanogan, WA
Viper/ 2.5L 200 Merc (SOLD)
1991 "the last" Virage/ 15" 280
2003 9’ Mini Virage/ 15 hp Honda 4-stroke
1989 Voyager/ 300 Promax
1989 HST / 2.5L 200 Merc
http://www.prattcustoms.com
Re: Glastron GT-150 - Hull mods to make it handle 150 HP
Nice work on your GT.
I built a GT-150 back in 2011 that I have been drag racing for the past 6 years.
I've had an OMC 2.6xp on it for little over a year or so. No cone on the gearcase causes a blowout over 76mph but is a dream up to 75mph.
[ Post made via Android ]
I built a GT-150 back in 2011 that I have been drag racing for the past 6 years.
I've had an OMC 2.6xp on it for little over a year or so. No cone on the gearcase causes a blowout over 76mph but is a dream up to 75mph.
[ Post made via Android ]
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