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porpoise
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  1. Jet Boats
    I just bought this 77 Centurion 21 cruiser mild 460 Ford Berkeley 12JG. The boat has a porpoise to it unless I run the tabs or diverter down but then the boat runs to wet. The pump is set back 4.5 inches AA aluminum impeller Dominator bowl droop snoot 4 deg. wedge upside down place diverter...
  2. V-Drives
    I'll start by saying, this is my first time around learning to drive and set up a vdrive. I have no problem doing the "trial and error" thing to learn to launch a boat. But when it starts to porpoise at 60mph+, I want to figure out safely how to deal with it. Basically, I know my boat can be set...
  3. Outdrives
    I recently acquired a 2007 24 ft Aftershock party deck boat, tunnel hull, 496HO and 24 pitch four blade prop. Overall we are pleased with the boat with the exception that it porpoises from first planing out up to about 35 mph. After 35 she seems to be manageable with the trim switch, but does...
  4. Jet Boats
    so i finally got my 19 daytona to go after playing with loader and bottom and the lawman for a month . So i am turnin a bc stainless at 6k thru double mufflers at 93.6 gps . Installed i believe a double a stainless brought the revs down a bit but from 77 mph to about 84 bad porpoise with...
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