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X dimention on straight v

Old 09-27-2012, 09:32 PM
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T-Mone
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Default X dimention on straight v

Guys need some input. I have a 28ft conventional v. Boat will have a single big block. Not sure where to set x. I'm getting mix answers. Some say prop 2-21/2 below bottom an some say 3 1/2-4 below. The hull is the cig mold.

Thanks ron
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Old 09-27-2012, 09:54 PM
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Originally Posted by T-Mone
Guys need some input. I have a 28ft conventional v. Boat will have a single big block. Not sure where to set x. I'm getting mix answers. Some say prop 2-21/2 below bottom an some say 3 1/2-4 below. The hull is the cig mold.

Thanks ron
18-18.5 19-19.5 with standoff box
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Old 09-27-2012, 10:08 PM
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what drive? if it's a std. length bravo with 500 -700 hp than 17" would be a good start. I guess the question is what was the X and shaft depth before the re rig?
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Old 09-27-2012, 10:11 PM
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Originally Posted by IRONMAN
what drive? if it's a std. length bravo with 500 -700 hp than 17" would be a good start. I guess the question is what was the X and shaft depth before the re rig?
The boat had outboards on a bracket. So transom has never been cut. I'm running a bravo standard hight w a 540 675hp
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Old 09-28-2012, 01:41 AM
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For reference, 28 Panteras are set at 17-17.5 and that puts the propshaft about 4-4.5" below the bottom
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Old 09-28-2012, 06:47 AM
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you can get spacers to put a bravo deeper. so i would consider going a little higher. start at the top and make sure everything fits under the hatch first.
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Old 09-28-2012, 08:14 AM
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ok thanks for imput. gonna cut hole today. im gonna do 17 3/4 should be safe at that. when i did my carrera i put prop 2 1/2 below an if i ran a 4 blade no diffuser ring it was a ***** to plane off.
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Old 09-28-2012, 09:58 AM
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I wouldn't go higher than 17" and check the bottom see how much rocker or hook it has. If it has none go 16" to minimize porpoise.
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