Sunseeker Cobra 39 sluggish
09-24-2018, 06:58 PM
#22
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Thanks, it’s on land now and cleaned. It has bottom paint. Each lift in/out in the sea cost like 1500$ so I like to be as sure as possible when I dump it in again. But I will try again, hull cleaned and see what happens.
09-24-2018, 07:07 PM
#23
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cleaning the bottom may make a big difference but if it is not enough the first question is do you know what the ratio in the drives are? with that info we can figure out what the slip is and what it should run. also did you ever ride in the boat with the previous owner and really see it run those numbers? not to say it did not run that with this setup but it would not be the first a seller embellished the performance numbers.
09-24-2018, 07:12 PM
#24
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I find it odd if it was slip that both engines are slipping the same? Both couplers are slipping the same? The slip isn't getting worse?
Sorry just trying to help.
It seems like both engines are turning 4500rpms. How are the props?
Sorry just trying to help.
It seems like both engines are turning 4500rpms. How are the props?
09-24-2018, 07:32 PM
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09-24-2018, 07:35 PM
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09-24-2018, 07:40 PM
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cleaning the bottom may make a big difference but if it is not enough the first question is do you know what the ratio in the drives are? with that info we can figure out what the slip is and what it should run. also did you ever ride in the boat with the previous owner and really see it run those numbers? not to say it did not run that with this setup but it would not be the first a seller embellished the performance numbers.
Have not seen it in action but I don’t really care if it runs perfect at this point but it feels very weird that we can’t make this boat plane with this kind of power. A known car tuner looked at the cam sheets and the other parts and said the build looked good and should deliver way over 400
09-24-2018, 07:40 PM
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09-24-2018, 07:42 PM
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Is the throttle all the way forward when your at 4000-4500rpm?
IMO if the gears changed you Would be over revving and most likely on a rev limiter.
IMO if the gears changed you Would be over revving and most likely on a rev limiter.
