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28 pantera porpoise after 60

Old 06-27-2018, 06:33 PM
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Default 28 pantera porpoise after 60

Hi all i have a twin 28 pantera that porpoises like crap after 60 if i keep drives tucked in its ok but not gettin the speed and wgen i touch the trim speed starts to climb but i have to back off due to it jumping all over the place props are 30 labbed maximus .
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Old 06-27-2018, 08:06 PM
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Why not a bravo? Never heard of a Maximus on a Pantera.
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Old 06-28-2018, 12:13 AM
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Make sure drives are trimming equally and that they are aligned (toe). Those are two easy things to check that can really affect handling when out of whack.
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Old 06-28-2018, 01:20 AM
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Do some prop testing. What power?? You should not need 5 blade props
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Old 06-28-2018, 04:42 AM
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I had bravo 32s on and the slip was 20% the maximus seems to be the better choice for lowering the slip i beginning to think stick with the bravos and drop drives down an inch ? Engines are twin 350s
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Old 06-28-2018, 05:29 AM
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Seems to me that those props are wrong for that boat. With 5 blades it sounds like way too much pitch for small blocks and I'm wondering why you even need the 5 blades to begin with.

I'd look at working those Bravos instead of the Maximus and understand that before I started spacing down the drives.
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Old 06-28-2018, 05:58 AM
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32s on 350s seem way tall.
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Old 06-28-2018, 07:20 AM
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Originally Posted by Quinlan View Post
32s on 350s seem way tall.
Waaay too much for Bravo's.
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Old 06-28-2018, 08:06 AM
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are these 700 hp small blocks........what rpm are you turning these props
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Old 06-28-2018, 09:21 AM
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Getting too much stern lift with the Maximus.
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