Show Posts
1
Jet Pumps / Berkeley impeller clearance
« on: April 28, 2013, 03:21:56 PM »
I'm building a small river boat on a small budget. I bought an old berkeley pump, took it apart, and did some measuring.
There is a TON of clearance between the impeller and stator, and I need to cut some more off the impeller for the engine i'm using.
Oh. The engine is a 3.5 liter v6 with 250 horsepower or so, 10:1 compression, fuel injected.
My goal is a TON of thrust at lower speeds. Top speed is a maximum of 50 mph. Basically, I am thinking I want to turn my berkeley into a "volume" pump for a lower horsepower application.
So, Question. Does anyone ever build up the stator so the vanes are closer to the impeller? I would think that would help hole shot, and a bit surprised I don't see any talk of it when searching.
There is a TON of clearance between the impeller and stator, and I need to cut some more off the impeller for the engine i'm using.
Oh. The engine is a 3.5 liter v6 with 250 horsepower or so, 10:1 compression, fuel injected.
My goal is a TON of thrust at lower speeds. Top speed is a maximum of 50 mph. Basically, I am thinking I want to turn my berkeley into a "volume" pump for a lower horsepower application.
So, Question. Does anyone ever build up the stator so the vanes are closer to the impeller? I would think that would help hole shot, and a bit surprised I don't see any talk of it when searching.