Jacuzzi Energizer Kits?? Pro's Con's?
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Jacuzzi Energizer Kits?? Pro's Con's?

  1. #1
    Senior Member Alter Ego's Avatar
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    Default Jacuzzi Energizer Kits?? Pro's Con's?

    I have seen these on many boats originally equipped with jacuzzi pumps. However, I havent heard anything about how much they improve the "seat of the pants" feel of the boat and what kinds of mph increases will be logical over a wore out jacuzzi Y pump? We were going to simply convert the ole boat to a berkley, but the price I have been quoted by a couple guys around here is just about half of what the boat is worth. This thing is just something my dad uses to put around and hang with the local jet boaters, it isnt going to be a drag boat. Just wanting to have a little better hole shot, and the ability to add a place diverter later. Thanks in advance for the info.
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    mo balls than $cents$ IMPATIENT 1's Avatar
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    ive gotta wierd divertor dealio for a jacuzzi somewhere josh, made to go on the jac bowl

    Dare to be different, if it turns out great you can claim you planned it that way.

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    Senior Member jetboatperformance's Avatar
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    We've sold and install dozens of these ,the overall improvement in efficiancy and performance is dramatic in the YJ conversion and good in the Wj One of the advantages to these kits is pure cost when the repairs to the Jacuzzi (parts) may approach the price of the energizer Tom
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    Senior Member Alter Ego's Avatar
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    Tom E., we played with this thing a lil in the past, I actually owned the boat about 8 years ago, i bought it when I was 16 years old, the only high school kid with a jet, it was just a noise maker tho, the mild 427 would just spin the pump like crazy. I adjusted the nozzle, it has a little adjustability and it would have about a 2 ft roost, i made a loader for it, but the blocker was too big and it only made the holeshot worse, you have to rev the motor like 4000-4500 to get the tank to get on top of the water. i actually machined an insert in the nozzle thinking that it would add more thrust, but I think that pump work off the "mass moves mass" thoery instead of the "pressure moves mass" theory that is used in the later pumps that we have now.
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    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by Alter Ego View Post
    Tom E., we played with this thing a lil in the past, I actually owned the boat about 8 years ago, i bought it when I was 16 years old, the only high school kid with a jet, it was just a noise maker tho, the mild 427 would just spin the pump like crazy. I adjusted the nozzle, it has a little adjustability and it would have about a 2 ft roost, i made a loader for it, but the blocker was too big and it only made the holeshot worse, you have to rev the motor like 4000-4500 to get the tank to get on top of the water. i actually machined an insert in the nozzle thinking that it would add more thrust, but I think that pump work off the "mass moves mass" thoery instead of the "pressure moves mass" theory that is used in the later pumps that we have now.
    Personally havent expirienced a blocker in a YJ , loaders for them are few and far between and don't seem to have a lot of effect until they have been "energized" The adjustability in the OE nozzle does help trim the hull and yes too much "up" will adversly affect the holeshot , The 4 to 4.5 K issue suggest the pump has developing issues (wear) and YJs don't respond to increased HP well IMO, The Bowl exit is the "nozzle on Jacuzzi and the steering is mearly a deflector (in its stock form) so nozzle inserts tend to not help performance .Your correct the YJ (unlike the WJ or Berkeley) moves volumes of H20. Tom
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    Senior Member Hustler's Avatar
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    I had Jack at MPD install one on my YJ. I also installed a inducer at the same time. It made huge differance in the over all performance and the hole shot was night and day. The pump was in great condition when I installed the kit and it made the "seat of the pants" feel a huge differance.

    I may put my pump up for sale this winter if another deal I'm working on comes through.
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    ... Some Kind Of Monster's Avatar
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    Yup, Nearly impossible to find a loader for these pumps
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    Is there a big difference between a Berkeley and an energized Jacuzzi? I am doing a lot of work to my boat this winter and have access to either one. Which would be better to put in?

    Matt.
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    mo balls than $cents$ IMPATIENT 1's Avatar
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    Quote Originally Posted by Motomatt68 View Post
    Is there a big difference between a Berkeley and an energized Jacuzzi? I am doing a lot of work to my boat this winter and have access to either one. Which would be better to put in?

    Matt.
    berk!

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    Senior Member Hustler's Avatar
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    Quote Originally Posted by Some Kind Of Monster View Post
    Yup, Nearly impossible to find a loader for these pumps

    If I sell mine this winter the the MPD loader will go with it
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    Senior Member Alter Ego's Avatar
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    The loader that was in it, I MADE. It is kinda funny now. Since it didnt work too well as a loader, we put the so called grate back on it. it stays in the boat now. .......my dad still uses it as an anchor lol That thing weighs about 25 lbs lol, I made it out of 1/4 inch steel. If I can talk my dad into buying this, I will definately get with someone who knows about the loaders and buy one that will actually help.
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    Senior Member Alter Ego's Avatar
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    Ok, A lil update. We bought the energizer kit, or actually we bought an entire YJ pump with the energizer kit installed. I got it all apart, and used the best parts from my dad's pump and the kit. Our pump isnt the YJ we thought it was, it is a complete bolt in unit made by jacuzzi, it isnt a WJ or YJ. I think that I heard someone call it an eagle or some crap. I was told that the shaft and the adapter will interchange which the have so far. Anyways to the point. the adapter is alot smaller in diameter than the suction housing itself. Are you required to flow the inlet side with epoxy to meet the wear ring adapter? the way it looks now, the water will enter and hit the adapter from the inside. looks like that will cause alot of obstruction. Second question. I have a newer impeller that I was going to put in it that was for a dominator. problem is that it as well as the impeller that I took out are both "B's" but if you look at the cut on the blades it is the opposite on each impeller. For instance, it is cut deeper on the stuffer side on the junky inpeller, and it is cut deeper on the widest part on the newer impeller. is this right or was is machined incorrectly? Last question, the impeller is too tight for comfort to fit into the ultimate wear ring, what are the clearances needed in between the impeller and the wear ring? looks like I am going to have to turn the impeller a lil.
    Last edited by Alter Ego; 11-29-2010 at 05:19 PM.
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  15. #13
    "Need For Speed" Gearhead's Avatar
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    AE,

    Have you talked to Scotty about all this? He has pretty good knowledge on Jacuzzis as he worked there as a young man as well as Dad, Jack, being an engineer there during the Jacuzzi racing days.

    Gear
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    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by Alter Ego View Post
    Ok, A lil update. We bought the energizer kit, or actually we bought an entire YJ pump with the energizer kit installed. I got it all apart, and used the best parts from my dad's pump and the kit. Our pump isnt the YJ we thought it was, it is a complete bolt in unit made by jacuzzi, it isnt a WJ or YJ. I think that I heard someone call it an eagle or some crap. I was told that the shaft and the adapter will interchange which the have so far. Anyways to the point. the adapter is alot smaller in diameter than the suction housing itself. Are you required to flow the inlet side with epoxy to meet the wear ring adapter? the way it looks now, the water will enter and hit the adapter from the inside. looks like that will cause alot of obstruction. Second question. I have a newer impeller that I was going to put in it that was for a dominator. problem is that it as well as the impeller that I took out are both "B's" but if you look at the cut on the blades it is the opposite on each impeller. For instance, it is cut deeper on the stuffer side on the junky inpeller, and it is cut deeper on the widest part on the newer impeller. is this right or was is machined incorrectly? Last question, the impeller is too tight for comfort to fit into the ultimate wear ring, what are the clearances needed in between the impeller and the wear ring? looks like I am going to have to turn the impeller a lil.
    Pics would help but yes you have to grind prep fill and blend the suction to wear ring area (we use "poxy putty") or that "ledge" will drastically affect performance. It sounds like you have a mixuture of maybe new and older Dominator impellers and or wear rings or other pieces ???. Seems that you had a Jacuzzi YJ Golden eagle or Maybe a even a WJ Pirrahna (cant recall) , as far as the appearance of the exits side blades (if I read right) could be that the one impeller has been cut or two different makers ? again pics of both would help everything. RE the URW ring, It could be that on of the "Energizers kits" your dealing with has some Aggressor conversion parts which differ slightly in design from Dominator ,personally we've never tried to use a UWR in an energizer application Tom
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