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-   -   Annoying porpusing.......... (https://www.offshoreonly.com/forums/pantera/208247-annoying-porpusing.html)

Dude! Sweet! 05-07-2009 01:42 PM

Ironman had big power in his 24. I had the boat with a 330 and didn't notice any issues. Mirage 23 prop.

rchevelle71 05-07-2009 02:20 PM


Originally Posted by Dude! Sweet! (Post 2861073)
Ironman had big power in his 24. I had the boat with a 330 and didn't notice any issues. Mirage 23 prop.


HMMMM,

did you say Mirage 23??? Thats the same Best prop I am using, and what we used on Scotts 24(although his may have been a 25):eek: Unfortunately, I think he has too much power for that:drink:

Dude! Sweet! 05-07-2009 02:24 PM

That's what I think I had on there. I'm going to see the boat tomorrow so I'll check. Don't remember what Chris had on it, but I'm sure it was a bigger wheel.

onesickpantera 05-07-2009 06:07 PM


Originally Posted by kreed (Post 2860769)
Its a 28 bravo 1. The prop is actually alittle too big I think. But I tried a 26 bravo yesterday and the " torque roll" was worse. I think I need to try a 5 blade prop to lift the hull out of the water more. Less drag, less roll ? Maybe? Im going to talk to Hydromotive and bblabes today to see what they say. Thanks for the advice.

I can tell you my boat HATED a stock Bravo prop. Rolled the boat to port and didn't have enough bow lift. Threw the boat all over the place, especially in choppy water.

My boat seems to like 3 blade props better. For all out speed I still haven't beat the standard Mirage(non-plus) and I have tried a lot of props. Last year I tried a Turbo 27 and it was close but then I blew out the rubber hub. I plan on testing it more this year.

The Rev4 was by far the best 4-blade prop I tried out of the box.

Try a Mirage or Mirage Plus 27 and see how it handles.

Elite Marine 05-07-2009 06:10 PM

The 24 with 600+ HP ran the fastest with a 29P regular Mirage, not the plus.

I have it still for sale if anyone is interested.

Kirk

kreed 05-07-2009 07:52 PM

Hi guys-
Talked to BBlades today. Very nice guy Brett. He recommended something that no one had said yet......put a left hand rotation prop on the boat. With the 700 f/p torque driving the bow to the Left, the LH rotation prop should counteract that. He said that its pretty common in 27 to 29 ft fountains to have this problem when they put big power in them. Sounds reasonable. He also mentioned the hook in the hull, if I cant fix the problem with proping. That will be alittle down the road. So Ive borrowed a 26 LH bravo 1 to try tomorrow afternoon. Just to see if the boat rides straight at high speeds, then Ill find the right size prop. I just need to remember that when I shift in reverse, the boat will go forward!!!!!!!!!!!!!!!!! :eek::eek::eek:

rchevelle71 05-07-2009 07:58 PM


Originally Posted by kreed (Post 2861308)
Hi guys-
Talked to BBlades today. Very nice guy Brett. He recommended something that no one had said yet......put a left hand rotation prop on the boat. With the 700 f/p torque driving the bow to the Left, the LH rotation prop should counteract that. He said that its pretty common in 27 to 29 ft fountains to have this problem when they put big power in them. Sounds reasonable. He also mentioned the hook in the hull, if I cant fix the problem with proping. That will be alittle down the road. So Ive borrowed a 26 LH bravo 1 to try tomorrow afternoon. Just to see if the boat rides straight at high speeds, then Ill find the right size prop. I just need to remember that when I shift in reverse, the boat will go forward!!!!!!!!!!!!!!!!! :eek::eek::eek:

We have already tried that, it helps, but doesnt cure it, between that and prop work though you might get rid of it.

kreed 05-07-2009 08:15 PM

your sprinkling on my parade. I really need to sleep tonight!! Im growing tired of thinking about this 24 HRS a day. Looking forward to trying this prop switch tomorrow so HOPEFULLY I can move on. Ill be happy if it goes 70 without leaning, at this point.Had NO problems with 450 HP and a 23p 3 blade prop lat year. I definatly will consider trying a 3 blade if you guys think it will help.....................

onesickpantera 05-07-2009 08:21 PM


Originally Posted by kreed (Post 2861337)
your sprinkling on my parade. I really need to sleep tonight!! Im growing tired of thinking about this 24 HRS a day. Looking forward to trying this prop switch tomorrow so HOPEFULLY I can move on. Ill be happy if it goes 70 without leaning, at this point.Had NO problems with 450 HP and a 23p 3 blade prop lat year. I definatly will consider trying a 3 blade if you guys think it will help.....................


IMO...definitely try a 3 blade.

Stormrider 05-08-2009 10:37 AM

550hp in my 24, liked the Mir+ best.
never tried a Mir thou.
Wasn't too fond of the B1.


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