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genson
MMT Pro Member
Joined: Sun Apr 15, 2012 6:44 pm Posts: 209 Location: carthage tx
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 Gdsd 23 2 or 3 blade
Ive got a 23 gdsd with a 2 blade and it just dont seem to run as fast as it should my buddy with a 20 gdlt can out run me both of us unloaded i was wondering if a 3 blade would be better
_________________ 1440 xpress 23 gdsd... Sold 1644 gd 35 gtr
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Thu Nov 08, 2012 5:26 pm |
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alexm
MMT Pro Member
Joined: Wed Nov 24, 2010 5:07 am Posts: 276 Location: Miramar Fl
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 Re: Gdsd 23 2 or 3 blade
Three blade is supposed to be faster i believe. With better holeshot. I have a 3 blade 23 Hp gdsd. What kind of boat are u running? How many rpms is your engine getting at wot?
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Thu Nov 08, 2012 9:36 pm |
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alexm
MMT Pro Member
Joined: Wed Nov 24, 2010 5:07 am Posts: 276 Location: Miramar Fl
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 Re: Gdsd 23 2 or 3 blade
How old is your prop? It could be worn out
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Thu Nov 08, 2012 9:38 pm |
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Gigafowl
MMT Elite Member
Joined: Tue Jan 13, 2009 7:19 pm Posts: 6441 Location: Trinity Bay - Texas
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 Re: Gdsd 23 2 or 3 blade
You need to change your pulleys to get the right gear ratio - BEFORE you can run the bigger higher pitch 3 blade.... It is worth the effort though - I have seen the side by side difference on the same hull.... Call up GD with your frame SN and they can line you up with what you need to make the transition properly... 
_________________ Eat - Sleep - Hunt ! ! !
"It is good to have an end to journey toward; but it is the journey that matters, in the end."
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Thu Nov 08, 2012 10:35 pm |
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genson
MMT Pro Member
Joined: Sun Apr 15, 2012 6:44 pm Posts: 209 Location: carthage tx
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 Re: Gdsd 23 2 or 3 blade
Its a 15 48 weldbilt and its turning right at 4000
_________________ 1440 xpress 23 gdsd... Sold 1644 gd 35 gtr
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Fri Nov 09, 2012 6:33 am |
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sftull
MMT Addict
Joined: Tue Mar 08, 2011 1:33 pm Posts: 601 Location: Rock Hill, SC
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 Re: Gdsd 23 2 or 3 blade
I would like to try a 3 blade but I don't have a GD. Does anyone else make them for 3/4x10 threads?
_________________ 1846 GTB and 35 GTR
New GT Rig
Old Surface Drive Build
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Fri Nov 09, 2012 7:13 am |
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Gigafowl
MMT Elite Member
Joined: Tue Jan 13, 2009 7:19 pm Posts: 6441 Location: Trinity Bay - Texas
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 Re: Gdsd 23 2 or 3 blade
_________________ Eat - Sleep - Hunt ! ! !
"It is good to have an end to journey toward; but it is the journey that matters, in the end."
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Fri Nov 09, 2012 8:12 am |
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bbb
MMT 1000 Club
Joined: Wed Sep 02, 2009 2:54 pm Posts: 1554 Location: SW Georgia
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 Re: Gdsd 23 2 or 3 blade
_________________ 19x54 Seminole Extreme with a 35hp CDI GDSD. Mikuni. Marsh Mellow. Heads. Cam.
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Fri Nov 09, 2012 2:00 pm |
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genson
MMT Pro Member
Joined: Sun Apr 15, 2012 6:44 pm Posts: 209 Location: carthage tx
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 Re: Gdsd 23 2 or 3 blade
I got the governor tab bent and its puts it in a bind with three ppl
_________________ 1440 xpress 23 gdsd... Sold 1644 gd 35 gtr
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Fri Nov 09, 2012 4:36 pm |
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alexm
MMT Pro Member
Joined: Wed Nov 24, 2010 5:07 am Posts: 276 Location: Miramar Fl
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 Re: Gdsd 23 2 or 3 blade
I have the three blade and I cannot turn 4000. Even outta the water. When I first got the engine I had it trimmed all wrong and I could barely get 3300 in water. I figured that out and now I turn 3650 with 2 people. Max
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Fri Nov 09, 2012 8:57 pm |
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sftull
MMT Addict
Joined: Tue Mar 08, 2011 1:33 pm Posts: 601 Location: Rock Hill, SC
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 Re: Gdsd 23 2 or 3 blade
_________________ 1846 GTB and 35 GTR
New GT Rig
Old Surface Drive Build
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Mon Nov 19, 2012 7:38 am |
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genson
MMT Pro Member
Joined: Sun Apr 15, 2012 6:44 pm Posts: 209 Location: carthage tx
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 Re: Gdsd 23 2 or 3 blade
Does anyone no how to tell the diff in an old style and a new style the gd website says u have to retrofit the opd style to run a 3 blade on it
_________________ 1440 xpress 23 gdsd... Sold 1644 gd 35 gtr
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Tue Jan 01, 2013 2:44 pm |
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Gigafowl
MMT Elite Member
Joined: Tue Jan 13, 2009 7:19 pm Posts: 6441 Location: Trinity Bay - Texas
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 Re: Gdsd 23 2 or 3 blade
Call GD with your frame SN - they can tell you everything ! ! !
If you have a 10 inch 2 blade - it's the old style ! ! !
The 3 blade is 11 inch and the bigger 2 blade made for the 35 GDSD is a 12 inch diameter.
_________________ Eat - Sleep - Hunt ! ! !
"It is good to have an end to journey toward; but it is the journey that matters, in the end."
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Tue Jan 01, 2013 3:10 pm |
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genson
MMT Pro Member
Joined: Sun Apr 15, 2012 6:44 pm Posts: 209 Location: carthage tx
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 Re: Gdsd 23 2 or 3 blade
Is the serial number the tag riveted to the shroud around the engine or is it somewhere else
_________________ 1440 xpress 23 gdsd... Sold 1644 gd 35 gtr
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Tue Jan 01, 2013 4:00 pm |
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Gigafowl
MMT Elite Member
Joined: Tue Jan 13, 2009 7:19 pm Posts: 6441 Location: Trinity Bay - Texas
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 Re: Gdsd 23 2 or 3 blade
Your frame SN - is stamped into the outdrive frame about 12 inches from the prop in 1/4 inch tall numbers... It's also on your Texas Title paperwork...
_________________ Eat - Sleep - Hunt ! ! !
"It is good to have an end to journey toward; but it is the journey that matters, in the end."
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Tue Jan 01, 2013 4:41 pm |
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