rooster tails and porpoising...
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rooster tails and porpoising...

  1. #1
    OFPIA
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    lol
    Last edited by OFPIA; 04-23-2008 at 02:39 PM.

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  3. #2
    ... Some Kind Of Monster's Avatar
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    Quote Originally Posted by OFPIA View Post
    Question: How do u guys manage to throw a tall rooster tail without porpoising? Every time I try to throw an (even) let's say 4 or 5 foot high rooster, my boat starts to porpoise like a son-of-a-gun.

    I have ride plate and hydraulic place diverter but no wedge or droop? was gonna put both of them in, but then decided not to, since I am having enough problems with porpoising even without the droop and a wedge (I mean just normally raising my diverter).

    So, what do u guys suggest?

    PS, I realize it doesn't give me any more performance, but I just like to throw one as high as I can just for fun.
    What kind of boat / pump? What angle is your rideplate at? Is there any hook in your hull?
    Last edited by Some Kind Of Monster; 03-21-2008 at 01:00 PM.

  4. #3
    Senior Member hotbo's Avatar
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    Quote Originally Posted by Some Kind Of Monster View Post
    What kind of boat / pump? What angle is your rideplate at? Is there any hook in your hull?


    i ran into this same problem when i de-hooked my boat.when i had alot of hook i could be in the full up position all day not anymore.

    1 solution id to jack the ride plate down this has helped some peeps.wish you luck and these fellas will help you out.travis

  5. #4
    Seriously off center slowride's Avatar
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    Bow tank? Equipment under the deck?

  6. #5
    E-7 Sheepdog (ret) SmokinLowriderSS's Avatar
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    Seriously, more HP.

    More HP equates to more output pressure, which will set the boat more firmly against the ride plate, which stops the porpose.

    I can run full up diverter with less than full throttle only on absolutely perfect water. Any chop at all trying to cruise with it up makes her porpose. Full throttle will carry the bow, but less pressure will not.

    You could also lower the ride plate some, to not allow the boat to nose up as high before getting a good lean against the ride plate. This may help as well, but may cost you top end speed.

  7. #6
    Senior Member Brendellajet's Avatar
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    My boat will porpoise if I raise the diverter in the 3k-3500 rpm range. Trim it out (get rid of the rooster) or throttle down.

  8. #7
    Member atxwrangler's Avatar
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    unless you have a serious hook in the hull,i would look into ride plate adjustment.make small adjustments untill you get it right,i wouldn't just jack it allthe way up or down.i would drop it about 1* at a time.

  9. #8
    Senior Member DuaneHTP's Avatar
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    Sounds like you may have rocker in your hull. If you do, put on a set of these and be done with it.
    http://www.glenwoodmarine.com/Catalo...%20CATALOG.pdf Look on page 64. We sell them.
    Then you can throw all the rooster you want to.

  10. #9
    Wet
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    Quote Originally Posted by SmokinLowriderSS View Post
    Seriously, more HP.

    Thats what works for mine. Not so much HP, but throttle. I porpoise at full roost from 2800 to 3100 rpm, (32 mph), but more throttle gets its right to full speed and full throttle.

  11. #10
    lol, right..... Devilman's Avatar
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    Muahahahaha! Not sure what the bowtank comment was about, mine has one & I can still throw a pretty healthy tail.


  12. #11
    Wet
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    Quote Originally Posted by Devilman View Post
    Muahahahaha! Not sure what the bowtank comment was about, mine has one & I can still throw a pretty healthy tail.
    I was wondering the same thing. What does that have to do with the price of bread in China?

  13. #12
    Senior Member mwjsone's Avatar
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    Bowtank adds weight to the front of the boat

  14. #13
    E-7 Sheepdog (ret) SmokinLowriderSS's Avatar
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    Quote Originally Posted by Wet Dream View Post
    Thats what works for mine. Not so much HP, but throttle. I porpoise at full roost from 2800 to 3100 rpm, (32 mph), but more throttle gets its right to full speed and full throttle.
    That's really more of what I meant. I have the same effect, no porpose at full throttle, but less throttle and it happens, and I don't have rocker in my case.

    If it's porposing at full throttle, takes adjustments, or more maximum power to stop.

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