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Questions on a 30

Old 09-19-2007, 06:14 PM
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Default Questions on a 30

I am asking these questions for a buddy What is your X dimension? Anybody tried a -2" lower, if so what are the results?


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MM
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Old 09-21-2007, 06:26 PM
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http://www.offshoreonly.com/forums/s...d.php?t=136784
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Old 09-21-2007, 06:28 PM
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i believe i was about 1 5/8's above...which according to Jay at Spectre was the lowest my mistake...LOWEST NOT HIGHEST ...ran her conservative to save the lowers...

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Old 09-22-2007, 06:51 AM
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Thanks Bernie! The boat I am asking about has 850 hp BBC with xr drives, runs in the low to mid 120's with 34's with tons of whack. He is looking for more top end without sacrificing acceleration.

Last edited by Magic Medicine; 09-22-2007 at 06:53 AM.
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Old 09-22-2007, 07:48 AM
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Originally Posted by berns29scarab View Post
i believe i was about 1 7/8's above...which according to Jay at Spectre was the highest...ran her conservative to save the lowers
Where is this measured from? I was looking at mine yesterday and was trying to figure out which step is used to measure this distance. Picture attached to show steps.


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Don
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Old 09-22-2007, 08:59 AM
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Originally Posted by Magic Medicine View Post
Thanks Bernie! The boat I am asking about has 850 hp BBC with xr drives, runs in the low to mid 120's with 34's with tons of whack. He is looking for more top end without sacrificing acceleration.
Get all of the current specs off the boat...gear ratios, X dim etc...then call Jay at Spectre and may also want to call Brett at B-Blades or MAtt and Julie at Throttle up for prop slip calcs.
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Old 09-24-2007, 08:36 AM
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Originally Posted by dgduck13 View Post
Where is this measured from? I was looking at mine yesterday and was trying to figure out which step is used to measure this distance. Picture attached to show steps.


Thanks
Don
Measure from the center of your nosecone to the lowest portion of the boat, bottom of the sponson. I level my prop shafts with a level, take a longer level and run it to the bottom of my boat, mark with a pencil and go from there. There are other ways to do it, but I have found this way to be pretty accurate.
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