Four Winns Boat Porpoising

BroadHopper · 04-26-2012, 11:43 AM

I am familiar with 4Winns as I had a classic Liberator for my first performance boat. I experince 'chine walking' at speed. I usually trim the drive down, as I increase speed, I will trim up until the boat starts to porpoise and trim down. I used the trim.

The factory prop should be your starting point. If you experience 'blow outs' during tubing or hard turnings, going down a pitch helps but you will find switching to a 4 blade will be even better!

Some props like the Mercury Lazer creates bow lift, some props like the Mirage is good for heavier boats. Please look at the Mercruiser prop selection guide and you will see what each brand of props do to handling.

I know you have an OMC, but I am just giving you an idea what changing props can do to a boat. Winnisquam Marine gives excellent advise for your boat and I would take their word for it. Please give them a call, you won't be disappointed.

Have a wonderful summer with your purchase. See you on the lake!

Jersey Joe · 05-02-2012, 08:42 PM

I have a 1992 FourWinns Horizon 190, OMC 5.0. Everything (but a $1200 gearset) is 100% stock. I have been running a 3 blade 14.5 x 19 since, well, since 1992. Most recent prop is a "Michigan", I think from Overtons. Never had a problem. I top out right at about 50 +/- based on water, fuel level, etc. Sounds like you just have the wrong prop on there.

dippasan · 05-07-2012, 07:16 AM

Quote:

Originally Posted by Jersey Joe

I have a 1992 FourWinns Horizon 190, OMC 5.0. Everything (but a $1200 gearset) is 100% stock. I have been running a 3 blade 14.5 x 19 since, well, since 1992. Most recent prop is a "Michigan", I think from Overtons. Never had a problem. I top out right at about 50 +/- based on water, fuel level, etc. Sounds like you just have the wrong prop on there.

Thanks Jersey Joe,
I have installed a 14.5x19 but haven't had a chance to try it out yet. I'm confident that will solve the problem.

Thanks

04-26-2012, 11:43 AM	#1
BroadHopper Senior Member Join Date: Oct 2004 Location: Laconia NH Posts: 5,616 Thanks: 3,245 Thanked 1,115 Times in 801 Posts	Lots of advise on this thread. I am familiar with 4Winns as I had a classic Liberator for my first performance boat. I experince 'chine walking' at speed. I usually trim the drive down, as I increase speed, I will trim up until the boat starts to porpoise and trim down. I used the trim. The factory prop should be your starting point. If you experience 'blow outs' during tubing or hard turnings, going down a pitch helps but you will find switching to a 4 blade will be even better! Some props like the Mercury Lazer creates bow lift, some props like the Mirage is good for heavier boats. Please look at the Mercruiser prop selection guide and you will see what each brand of props do to handling. I know you have an OMC, but I am just giving you an idea what changing props can do to a boat. Winnisquam Marine gives excellent advise for your boat and I would take their word for it. Please give them a call, you won't be disappointed. Have a wonderful summer with your purchase. See you on the lake! __________________ Someday may never be an actual day.

05-02-2012, 08:42 PM	#2
Jersey Joe Member Join Date: Aug 2005 Posts: 28 Thanks: 0 Thanked 0 Times in 0 Posts	I have a 1992 FourWinns Horizon 190, OMC 5.0. Everything (but a $1200 gearset) is 100% stock. I have been running a 3 blade 14.5 x 19 since, well, since 1992. Most recent prop is a "Michigan", I think from Overtons. Never had a problem. I top out right at about 50 +/- based on water, fuel level, etc. Sounds like you just have the wrong prop on there.