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twin 550hp on a 28 Skater guess mph?

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Old 07-07-2002, 02:58 AM
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who's Puder???? and yes keep those photos coming
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Old 07-07-2002, 03:08 AM
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speel chekk this fokker!
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i am goign to say around 140 mph.

try the speed calculator on g-fast.com i am guestimating 4500lbs for eth boat 1100hp total and 6%-4% slip. That is of course assuming the COG and X dims aren't totalled f-ed up.

i think that boat might be a handful to drive. be careful.
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Old 07-07-2002, 07:19 AM
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new pics!
puder I know that formula but sometimes reality is a bit different ...I just wanted to hear the discussion or experiences;cause we do not have any 28 cat with twin inboard engines,I mean you can be very fast on papers but under the water in reality...
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Old 07-07-2002, 07:26 AM
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2nd
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Old 07-08-2002, 11:42 AM
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3rd
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Old 07-08-2002, 11:44 AM
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planning to paint like this: Any comments?
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Old 07-08-2002, 04:41 PM
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112 gps. hopefully you will get more
 
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Old 07-08-2002, 04:51 PM
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No way is it going to run 140 mph. I say 115 mph. A 30' Spectre with twin 500HP will run 105-110. You need a lot longer boat and more ponies to safely run tall numbers like that. Do not compare the power to weight ratios of O/B and I/O for top end speed. Have you considered that you will have a lot weight in the rear of the boat which will make it porpoise insanely at around 75mph. Good luck and be careful.
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Old 07-08-2002, 07:33 PM
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Wow, talk about blazing a new trail. What an interesting project! major work. How many pounds need to go in the sponsons to offset the engine weight? Can we say CG? What CG! I only hope they run it in flat calm water and post the speed numbers before trying to run in anything rough. Very ambitious.
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Old 07-08-2002, 07:55 PM
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If they get it balanced, it will run about 112mph.

Just my thought.
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