Glastron GT-150 - Hull mods to make it handle 150 HP
Posted: Sep 12, 2019 11:14 am
I picked up this mint GT-150 w/ ‘82 80 HP merc in My home town in Alaska a few weeks ago. I really miss my Virage and going fast when I’m up here working, so hopefully I can make this boat handle like my Viper. Ironically, fellow Hydrostream owner and friend Phil Blomquist was in Sitka visiting when the deal went thru and was super eager to go see it.
First off I had to replace the stator, trigger, and coil wiring as the wires were rotted. I also went thru the carbs, fuel pump and replaced all the hoses.
I pulled the deck and reinforced the transom before my first run. All the wood was in excellent condition.
My image hosting (free) site has closed down so this is my first attempt at uploading pictures directly . I hope they load in the right order......
The first time out was ,.....actually FUN with the little 80 Merc. I at cruising speed, I had to keep it trimmed down to keep from porpoising. At full throttle, I was able to trim up and this 625# hull actually lifted pretty good. 45 mph was the top speed.
This winter I will make a Viper sized pad and try it again with the 80. I'll post pictures of the same run once done.
After this mod, I will pull the 80 and put on a 2.5L 150 EFI I picked up and see how it runs bolted to the transom.
After that run, I will need to get some $$ for solid mounts, LWP, jack plate, and sea star PRO steering.
Stay tuned for updates. I would like to see 75-80 mph and STABLE. If the boat handles the 150, I do have a 2.5L carb 200 powerhead I can throw on.
First off I had to replace the stator, trigger, and coil wiring as the wires were rotted. I also went thru the carbs, fuel pump and replaced all the hoses.
I pulled the deck and reinforced the transom before my first run. All the wood was in excellent condition.
My image hosting (free) site has closed down so this is my first attempt at uploading pictures directly . I hope they load in the right order......
The first time out was ,.....actually FUN with the little 80 Merc. I at cruising speed, I had to keep it trimmed down to keep from porpoising. At full throttle, I was able to trim up and this 625# hull actually lifted pretty good. 45 mph was the top speed.
This winter I will make a Viper sized pad and try it again with the 80. I'll post pictures of the same run once done.
After this mod, I will pull the 80 and put on a 2.5L 150 EFI I picked up and see how it runs bolted to the transom.
After that run, I will need to get some $$ for solid mounts, LWP, jack plate, and sea star PRO steering.
Stay tuned for updates. I would like to see 75-80 mph and STABLE. If the boat handles the 150, I do have a 2.5L carb 200 powerhead I can throw on.
Here's a shot of mine at an iconic cruise in spot in Minnesota. The business closed before I owned my car but the building was bought and moved to another property full of historic buildings. Its a venue site an a friend was just married there, couldn't pass the opportunity for a picture or two. Sorry for the derail, back to the boats! 