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  • AG6's Avatar
    06-27-2017, 11:25 PM
    AG6 replied to a thread Porpusing in Vintage Jet Boats only
    I would talk with cp again, explain your symptoms and vids are always helpful. Like a before and after way to document the progress. They should be able to set you with a long enough ride plate. Tabs would work. But way overkill and 3X the cost and headache to install. An adjustable ride plate will make all the difference in the world. How much of a droop did you go? 4"??? Dean
    1 replies | 6 view(s)
  • AG6's Avatar
    06-27-2017, 07:59 PM
    AG6 replied to a thread Porpusing in Vintage Jet Boats only
    Hi Dave, Porpoising is a very simple thing to understand. It is caused when the hull of the boat is at the Apex, and trying to 'climb out of the hole' or over the crest of the wave of water its on, if you will. Another words, the boat is at a teetering point(like a see-saw) and the balanced is being upset. Not enough drag to hold down the nose, when you lift the bow(bring the nozzle up) so it starts to teeter up and down. One excellent way to correct this, is the use of a "Ride Plate" under the bowl of your pump. This in effect tricks the hull in to thinking its longer than it is, and creates enough surface drag (or parasitic drag) to actually compensate for this bouncing. Most of the Jet boat guys use these for this reason, and you'll notice that you may also pick up a few MPH and better handling as well. CP, PJB and many of the aftermarket boat part house carry these, but I'd recommend you take the boat with you and some current video of how its reacting. This will give these folks the info they are going to ask for, to help you select a ride plate. Almost all boats have this issue. I/O's (like my Biesemeyer) has it too, I just use trim tabs to correct it. Good luck, Hope this all helped. Dean.
    1 replies | 21 view(s)
  • AG6's Avatar
    06-25-2017, 09:32 AM
    Ok, I guess I forgot to upload the others too... https://youtu.be/WzTKcHKCR1Y
    1 replies | 127 view(s)
  • "THE ADVOCATE"'s Avatar
    06-23-2017, 02:58 PM
    That's how I feel and I have to jump into cold water before I walk on the beach sometimes just because.
    1 replies | 96 view(s)
  • T8er S.'s Avatar
    06-22-2017, 02:34 PM
    T8er S. started a thread How you should act in VJB Videos
    This is one of the best videos I've seen for proper jet boat enthusiasm. https://youtu.be/gFp-4mlHs9E :drv:
    1 replies | 96 view(s)
  • T8er S.'s Avatar
    06-21-2017, 01:41 PM
    T8er S. replied to a thread WTB No dipstick? in Boat Parts for Sale
    You'll have to buy one. Just figure out which side it's on. https://www.summitracing.com/search/part-type/engine-oil-dipsticks/make/chevrolet/model/v3500/engine-size/7-4l-454/oil-dipstick-location/passenger-side :zdrool:
    9 replies | 152 view(s)
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About T8er S.

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Date of Birth
February 1, 1966 (51)
About T8er S.
Oklahoma City
A little bit about you...:
Middle aged Okie who likes haulin azz, Stirrer of pots, loyal bow tie fan, deflector of blue ovals.
Knife Fighting, Playing With Matches, Eating BB Fords
Billionaire Playboy
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The fastest one
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Some learning



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