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Old 09-18-2018, 10:01 AM
1ski4me 1ski4me is offline
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Join Date: Aug 2018
Boat: Mastercraft Prostar 190, 1990, 351 indmar
Location: Canada
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Mastercraft Build Process

Hello all! New to the forum and new to the mastercraft world. Been around performance boating for quite some time but just recently picked up a 1990 190 Prostar. It will be getting a full TLC makeover during the winter months but curious if anybody knows the construction of the boats. I read somewhere that they got rid of wood at one point in time but does anybody know when. Is there core in these boats? Wood transom? Wood stringers? I'm searching through all the posts and archives digging up information for upgrades that people have done to there late model prostars but couldn't seem to find the info above in any posts. I'm in absolute awe at the boats capabilities and beautiful slalom wake. Any tips or necessary upgrades are welcome on my end.
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Old 09-18-2018, 11:53 AM
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swc5150 swc5150 is offline
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Your boat hull and deck is 100% fiberglass, so no worries about any sort of rot.
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Old 09-18-2018, 11:59 AM
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Ski-me Ski-me is offline
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Boat: Mastercraft, Prostar 205, 1994, LT1
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I think 1983 was the first year of fiberglass stringers. Others can verify....
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Old 09-18-2018, 12:00 PM
88 PS190 88 PS190 is offline
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Boat: 1988 MC Prostar 190, 351 Ford
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Quote:
Originally Posted by swc5150 View Post
Your boat hull and deck is 100% fiberglass, so no worries about any sort of rot.
Sooooorrrt of.

1990 is the 1987-1990 hull, jet fighter window look.

There shouldn't be any wood in the hull itself, but there may be wood inside the side skins. And the rear panel for the floor above the drive shaft may have some wood core in it
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Old 09-18-2018, 12:17 PM
1ski4me 1ski4me is offline
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Join Date: Aug 2018
Boat: Mastercraft Prostar 190, 1990, 351 indmar
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Quote:
Originally Posted by swc5150 View Post
Your boat hull and deck is 100% fiberglass, so no worries about any sort of rot.
That's what I wasn't sure. I've rebuilt a few boats and they all utilize a fiberglass shell but all the internal "structural components" have been fiberglass wrapped wood (i.e. balsa core, plywood stringers wrapped in fiberglass, and then usually 2 or 3 layers of plywood in the transom). If this boat would infact be all fiberglass that is a blessing as it would always be getting wet in some way. Luckily this boat was bought from the original owner and was always stored on a boat lift inside of a covered boat house.
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