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View Full Version : porpoising when "nozzled up"


breezeblocker
10-01-2005, 09:30 PM
i have a 74 hallet jacuzzi/455 olds, when nozzled up the boat porpoises pretty bad. can a ride plate be installed to help out??
olbiezer
10-01-2005, 11:25 PM
i dont know if it can be installed as i dont know anything about your boat but it will help u adjust the boat for sure......how high of a up angle do u have in it at full up? maybe u need a down wedge a little bit to make it stop porposing but still get some speed out of it.
Squirtcha?
10-02-2005, 08:01 AM
i dont know if it can be installed as i dont know anything about your boat but it will help u adjust the boat for sure......how high of a up angle do u have in it at full up? maybe u need a down wedge a little bit to make it stop porposing but still get some speed out of it.
That just might work. Wedges for Berks are cheap. Not sure what kind the jacuzzi takes, but I wouldn't think they'd be too expensive. It's worth a shot. I've done lots of experimenting with wedges and they can make a huge difference in the way your boat rides/handles.
comin' unscrewed
10-02-2005, 09:05 AM
i have a 74 hallet jacuzzi/455 olds, when nozzled up the boat porpoises pretty bad. can a ride plate be installed to help out??
What do you mean when you say, "When nozzled up"? Have you done something to change the stock thrust angle?
malcolm
10-02-2005, 09:39 AM
Yeah, which Jacuzzi pump do you have?
Squirtcha?
10-02-2005, 09:57 AM
I'm assuming that he's got a diverter on the Jacuzzi?
malcolm
10-02-2005, 10:38 AM
Could also be a YJ with the adjustable trim screw.
breezeblocker
10-02-2005, 03:30 PM
its the jacuzzi wj with place diverter. diverter lever all the way in the first two clicks.
malcolm
10-02-2005, 04:33 PM
OK, that's what I've got. How fast are you going? Mine will power out of it around 50. I also found that I have to get up to speed sometimes with it down and then slowly bring the nozzle up, too fast and it will make the boat jump just enough to start the porpoise.
BrendellaJet
10-02-2005, 04:54 PM
i have a wedge for a 12wj. It is for sale
TRG
10-02-2005, 06:21 PM
may be lacking in the power dept. to carry the nose?
olbiezer
10-02-2005, 07:25 PM
thats what i think toddnjuzz lack of power to keep the nose up so need to lower the angle of the nozzle with some wedge
malcolm
10-02-2005, 10:24 PM
Or just lower the diverter...
olbiezer
10-02-2005, 10:41 PM
either way there melcolm.....same thing only different!!!!!!!!
breezeblocker
10-03-2005, 07:20 AM
i am thinking its the lack of power too, i think i am barely hittin 50 mph at top speed.thanks for the input.
Squirtcha?
10-03-2005, 08:34 AM
When in doubt...............power up. How could that ever be a bad thing?
malcolm
10-03-2005, 09:08 AM
Yup, I had the same problem. Once you get past 50, Flipper tends to go away. :D
TRG
10-04-2005, 07:44 PM
....so,...do i get a prize???? :confused:
berk
10-04-2005, 08:17 PM
....so,...do i get a prize???? :confused:
ya free porn! would you rather have tapes or CDs?
breezeblocker
10-04-2005, 08:30 PM
....so,...do i get a prize???? :confused:
i'll toss you a few silver sodas (colorado kool-aids) if ever see you in big river :D
SmokinLowriderSS
10-05-2005, 03:39 PM
Yup, I had the same problem. Once you get past 50, Flipper tends to go away. :D
My Taylor SS is the same way. If I am cruizing about 3800, I cannot carry more than a bit of tail. About 4,000 and I can rooster it about 4 or 5 feet up (about half), Anything below about 4,300 and I porpose at full roost. I am running a Berk "F" with original trim and "shortie " ride plate (cavitation plate), all externally orriginal.