Berk 12JE-A
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Berk 12JE-A

  1. #1
    Senior Member fastnlight's Avatar
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    Default Berk 12JE-A

    I just bought a 18', 74 Challenger with this pump in it. Couldn't find anything on it doing a search. Is this a desirable pump? It is has a split bowl with a droop and place diverter. It has an A/B cut impeller. Motor is 650+ horsepower, BBC. Also, does an A/B cut on the impeller mean that the measurements are between an A and B?
    Thanks for your help.

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    Default 12je

    Quote Originally Posted by fastnlight View Post
    I just bought a 18', 74 Challenger with this pump in it. Couldn't find anything on it doing a search. Is this a desirable pump? It is has a split bowl with a droop and place diverter. It has an A/B cut impeller. Motor is 650+ horsepower, BBC. Also, does an A/B cut on the impeller mean that the measurements are between an A and B?
    Thanks for your help.
    If you have a split bowl on your pump then someone has converted it . Is your handhole cover outside of the boat? You are correct an A/B impeller is a cut on the impeller between an A and a B. What rpm do you want to turn your engine?

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    Senior Member fastnlight's Avatar
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    Default Berkekely Pump

    Quote Originally Posted by greg shoemaker View Post
    If you have a split bowl on your pump then someone has converted it . Is your handhole cover outside of the boat? You are correct an A/B impeller is a cut on the impeller between an A and a B. What rpm do you want to turn your engine?
    I spoke with the guy who built the pump, Jim Barnard in Ventura, and he said the pump has been converted. He also built the motor and said it could turn 5800-6000. He kept referring to this pump as an "E". I'm having trouble attaching pics from iPhoto, but the handhole cover is outside of the boat and the pump is set back with a ride plate.

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    Default 12je

    Quote Originally Posted by fastnlight View Post
    I spoke with the guy who built the pump, Jim Barnard in Ventura, and he said the pump has been converted. He also built the motor and said it could turn 5800-6000. He kept referring to this pump as an "E". I'm having trouble attaching pics from iPhoto, but the handhole cover is outside of the boat and the pump is set back with a ride plate.
    Challenger used a lot of E pumps in there boats so it does not surprise me that you have one in yours. Have you driven your boat? I was wondering if you have any handling problems at higher speeds? This boat is one of those hulls that has a lot of low speed lift and with the addition of a droop snoot, I was wondering if it has any handling problems?

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    Senior Member fastnlight's Avatar
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    Default Challenger handling problems.

    Quote Originally Posted by greg shoemaker View Post
    Challenger used a lot of E pumps in there boats so it does not surprise me that you have one in yours. Have you driven your boat? I was wondering if you have any handling problems at higher speeds? This boat is one of those hulls that has a lot of low speed lift and with the addition of a droop snoot, I was wondering if it has any handling problems?
    Interesting. I diid get to lake test it but am new to jets so probably would have to have someone with experience drive it to see about any handling problems. To me, the boat is scary fast just from a speed perspective. I didnt really have the balls yet to hammer it. Will the diverter, and using it properly, offset any negative handling caused by the droop? The hull seems to have a significant amount of "V". Does this contribute to the high speed handling problems?

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    Default 18 Challenger

    Quote Originally Posted by fastnlight View Post
    Interesting. I diid get to lake test it but am new to jets so probably would have to have someone with experience drive it to see about any handling problems. To me, the boat is scary fast just from a speed perspective. I didnt really have the balls yet to hammer it. Will the diverter, and using it properly, offset any negative handling caused by the droop? The hull seems to have a significant amount of "V". Does this contribute to the high speed handling problems?
    A diverter will certianlly help but the problem is that the strake design on the bottom tend to generate to much lift at higher speeds. Take it slow and see where the limits of the hull take you. A diverter will help control the ride so make sure you a diverter is in your furture. If you need any help feel free to give me a call. Greg 951 272 6060

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    Senior Member fastnlight's Avatar
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    Default

    Quote Originally Posted by greg shoemaker View Post
    A diverter will certianlly help but the problem is that the strake design on the bottom tend to generate to much lift at higher speeds. Take it slow and see where the limits of the hull take you. A diverter will help control the ride so make sure you a diverter is in your furture. If you need any help feel free to give me a call. Greg 951 272 6060
    Thanks for your help Greg. I actually have a manual place diverter. By the way, it has a loader that the seller says is a GS Marine one. I looked on your website and couldn't find any you were selling. Do you manufacture them or is the seller confused?

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    Default Loaders

    Quote Originally Posted by fastnlight View Post
    Thanks for your help Greg. I actually have a manual place diverter. By the way, it has a loader that the seller says is a GS Marine one. I looked on your website and couldn't find any you were selling. Do you manufacture them or is the seller confused?
    When it comes to loaders I build them, but try to give the customer one that will benefit his particular boat . Not all boats take the same loaders. Alot of times I see loaders that have been sold to people and they will certianlly add performance but when it come's to pulling a skier or wake boarder they just don't fill the need and often times hurt low end pull ability. Make sure that when selecting a loader it fits your overall needs.

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    Senior Member fastnlight's Avatar
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    Quote Originally Posted by greg shoemaker View Post
    When it comes to loaders I build them, but try to give the customer one that will benefit his particular boat . Not all boats take the same loaders. Alot of times I see loaders that have been sold to people and they will certianlly add performance but when it come's to pulling a skier or wake boarder they just don't fill the need and often times hurt low end pull ability. Make sure that when selecting a loader it fits your overall needs.
    Thanks again Greg.

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