SoCal Jet Boats
Tech Talk => Jet Pumps => Topic started by: connorstexas on May 11, 2016, 09:50:40 AM
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would a Berkeley be able to spin safely at 7200rpm of my motor can push it, not sure what impeller is in it. and is a loader absolutely necessary?
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You definitely don't want to spin an aluminum impeller that fast. I'm not even sure about a bronze. I would definitely check what impeller u have and make sure its stainless.
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what would be the max on an aluminum? and any idea on a loader? it's a Texas tunnel and I'm not to sure if I need to run one or not
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what would be the max on an aluminum? and any idea on a loader? it's a Texas tunnel and I'm not to sure if I need to run one or not
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I personally would not spin an aluminum past 6k.
You need to be in the balanced stainless with a 17-4 shaft before I would say safe arena.
7200 rpm? What the hell are you running?
All pumps need to be properly loaded. 90+% of the time that means loader.
JMO
GT
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You need to be in the balanced stainless with a 17-4 shady shaft.
GT
Sounds good! Go ahead and ship that to me. IOU is in the mail.
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any loader in specific? or any ideas?
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any loader in specific? or any ideas?
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What's it doing now?
There are a few choices out there.
What mph do you expect? What application?
I would never recommend anything without the advantage of taste, touch, sight and smell.
GT
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Sounds good! Go ahead and ship that to me. IOU is in the mail.
Make personal checks payable to;
Lol
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I'm still building it. motors getting put in this week. 500hp roughly
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I'm still building it. motors getting put in this week. 500hp roughly
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500 HP at 7,200 rpm? What the hell did you build? LS?
GT
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just a little straight 6 turbo.
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just a little straight 6 turbo.
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Nice.
Where does the peak torque end up?
Turning a centrifugal pump more than about 6,000 rpm gets really challenging when trying to absorb as much hp as humanly possible.
Not saying impossible, saying challenging.
I would consider a dropped keel with a fairly deep shoe. You know who needs to come in here is Flusher. What does the engine weigh? Where is it in relation to the rear of the boat? Acceleration is going to be your challenge. Is the pan at least trapped?
So many questions. Lol
GT
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it holds the torque from 3500/4000 all the way to 6k
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weights about 450lbs. set back pump
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Hope you have a jet-away or a pop off in that boat.
Sent from McIntyre Park
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Hope you have a jet-away or a pop off in that boat.
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Was going to go there, but figured one of you guys could ask questions for a while. Didn't want to be a thread hog.
GT
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thats going to take a pretty small impeller to spin that kind of RPM no?
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im not an expert, but 500 hp at 7200 rpm looks like itll be smaller than a D impeller... cruise rpm will be insane i would think
heres a picture of the chart if you havent seen one
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im not an expert, but 500 hp at 7200 rpm looks like itll be smaller than a D impeller... cruise rpm will be insane i would think
heres a picture of the chart if you havent seen one
Yup.
Perfect application for a Panther.
Did I just say that out loud?
GT
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haha maybe I'll limit it to about 6k rpm and a good cruising speed of about 3500-4K rpm
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haha maybe I'll limit it to about 6k rpm and a good cruising speed of about 3500-4K rpm
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dont know if this helps.
But i have about 450-500 hp on motor, i spin a B- impeller to right about 5k-5200 on motor. 6k-6200 on bottle. On the bottle, im probably in the 6-650 hp range.
With that said, my cruise rpm is 3500. It does not like to cruise any lower. I dont know if this info helps or not.
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everything helps man. thank you guys
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I run a stainless detailed b/c and run 61-6200 on motor and 7000k on the bottle 650-675 motor 975-1000 on bottle. 32 nos jet
BECKY WITH THE GOOD HAIR!
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everything helps man. thank you guys
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There are plenty of pump places to call and get opinions, I recommend either Chris over at B1 or Bostick "six oh nine" in the boards. Bostick is in El Cajon so that might be a lil closer to you
BECKY WITH THE GOOD HAIR!
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thank you. he did contact me on another post I have.
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would a Berkeley be able to spin safely at 7200rpm of my motor can push it, not sure what impeller is in it. and is a loader absolutely necessary?
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just a little straight 6 turbo.
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Seein' Texas as the screen name, I'm thinking Cummins 6BT...
But seein' 7200, I'm thinkin' a Toyota 2JZ...?
Cummins is WWWAAAYYY too heavy, But has the sustained torque
Toyota is also heavy considering the displacement, and the sustained torque might be a reach.
What gives? What motor?
Dan'l
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mash on it knows what I'm doing! :)
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Don't forget about your thrust bearing. The typical stock bearings are not rated for that 7200 rpm, especially not with grease. Brand and tolerance classification matter at those levels. Sounds like a fun project.