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 GTR engine upgrade? 
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MMT Member

Joined: Sat Dec 05, 2009 6:30 pm
Posts: 26
Location: Denham Springs, LA
Post GTR engine upgrade?
Can I upgrade my 23 to a 35 Vangaurd or a 40 Kohler? Seems like the body of the two GTR's are the same, just different size motors.

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23 GTR, 16/48 GD surface drive boat


Sun Dec 13, 2009 9:12 am
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Joined: Sun Sep 13, 2009 8:58 am
Posts: 49
Post Re: GTR engine upgrade?
Hello
What speeds are you getting with the 23 gtr with 2 man, decoys, etc

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16 x 48 Alweld - 36 PD FPR PT&T


Sun Dec 13, 2009 10:07 am
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Joined: Sat Dec 05, 2009 6:30 pm
Posts: 26
Location: Denham Springs, LA
Post Re: GTR engine upgrade?
21-23, too slow. I had 4 people, 300lb hog, 2 does, stands, guns, ice chest and ran about 5 mph!

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23 GTR, 16/48 GD surface drive boat


Sun Dec 13, 2009 10:12 am
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Joined: Wed Jan 14, 2009 7:38 pm
Posts: 581
Location: HOUSTON
Post Re: GTR engine upgrade?
A suggestion would be to sell the 23 GTR and buy a used or new 35 GTR. I is going to cost you a bundle to change that over and you might not see much of a financial gain from the motor swap. Seems that there is considerable interest for different size mud motors. :) JMO

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Sun Dec 13, 2009 11:35 am
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Joined: Mon Feb 16, 2009 10:21 pm
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Location: St. Francisville, LA
Post Re: GTR engine upgrade?

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Sun Dec 13, 2009 11:42 am
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Joined: Sat Dec 05, 2009 6:30 pm
Posts: 26
Location: Denham Springs, LA
Post Re: GTR engine upgrade?
I like the 28hp Kohler CH745. 94 lbs and EFI is available. Wondering if it will mount?

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23 GTR, 16/48 GD surface drive boat


Sun Dec 13, 2009 4:54 pm
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Joined: Thu Aug 27, 2009 5:22 pm
Posts: 2029
Location: Patterson LA
Post Re: GTR engine upgrade?

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19x48 Rink/Aucoin Bateau w/35 GTR
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Sun Dec 13, 2009 5:00 pm
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Joined: Sat Dec 05, 2009 6:30 pm
Posts: 26
Location: Denham Springs, LA
Post Re: GTR engine upgrade?
that's a once-twice a year load. Usually just me or 1 passenger.

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23 GTR, 16/48 GD surface drive boat


Sun Dec 13, 2009 5:19 pm
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