What all is involved in having pump work done or having a performance build? I currently have a Berkeley pump/ intake with a loader and a dominator split bowl with stuffer. Just trying to figure out where to spend the money, on the pump or on the motor? I have a 18 foot eliminator bubble deck  and a ride plate, just finished building a 468 bbc that makes a little over 500hp, boat runs great, but just looking for your guys thoughts, looking to make the boat faster, ps it has an "a" impeller aluminum


Sent from my iPhone using SoCal Jet Boats

X2 on B1 racing. He will take care of you.


Sent from McIntyre park

What all is involved in having pump work done or having a performance build? I currently have a Berkeley pump/ intake with a loader and a dominator split bowl with stuffer. Just trying to figure out where to spend the money, on the pump or on the motor? I have a 18 foot eliminator bubble deck  and a ride plate, just finished building a 468 bbc that makes a little over 500hp, boat runs great, but just looking for your guys thoughts, looking to make the boat faster, ps it has an "a" impeller aluminum


Sent from my iPhone using SoCal Jet Boats

How tight is the pump?
a loose pump will give up some mph.
What did it GPS at? where do you want to be?
How much tuning on the pump combo have you done?
have a diverter?

Dan'l

I think I would go see Chris and Joe at B1 Racing.  I would change out the A impeller to a B or so and see what they could do with the loader and set up.  It's hard to guess with the little info we have.

I have a sweet Panther for them to experiment on haha


Sent from my iPhone using SoCal Jet Boats

The impeller is on the loose side, it has been in there for about 4 years, the last time I gps it, it was at 60 mph on stock 454, haven't gps it since I installed the new motor. I was told that I need to have pump work done to match the motors hp! Not sure what is all involved? I would like to see if I could do the work my self if possible. Looking to do around 80mph


Sent from my iPhone using SoCal Jet Boats

I had a heavy azz Glencoe, 454, +.030' over, 9.5:1, victor jr & 750 Holley, and headers... ran 71.8- Jacuzzi DubJ, with a detailed 'B' stainless impeller, with diverter.
No shoe, ride plate, or loader, just a stock rock grate. I think there was more in it, if I took the time to tune the combo...

I would like to see if I could do the work my self if possible.


Sent from my iPhone using SoCal Jet Boats

Totally doable
Its not rocket science, just jet surgery.
Build the pump and then make small changes dialing it in.

Dan'l

Thanks, what's the difference between a and b impellers? If I switch to an a/b or b impeller would I see a difference in mph, or should I stick with the a impeller and just add more hp


Sent from my iPhone using SoCal Jet Boats

A to B will be roughly 300 rpm (higher for the B), where does your motor make its HP at?
I'd give up 300 rpm to have a better holeshot (A)
If you are at 5200 with an A, you'd be at ~5500 w/ B.
I'm at 5k with a AA
MPH? I don't know.

BTW, a WJ Jacuzzi B is similar to a Berk A.

Dan'l

A to B will be roughly 300 rpm (higher for the B), where does your motor make its HP at?
I'd give up 300 rpm to have a better holeshot (A)
If you are at 5200 with an A, you'd be at ~5500 w/ B.
I'm at 5k with a AA
MPH? I don't know.

BTW, a WJ Jacuzzi B is similar to a Berk A.

Dan'l

What is an aa impeller,  bigger or smaller than an a?

thanks jim