This is proving more costly than I thought. Very hard to machine
as it requires close tolerance to minimize the clearance
between impeller and housing. About three different lathe and mill sets
ups are required. No easy way to rapidly mount it and unmount on the
mill and lathe either.

I am building a test set using my CC mill as a power source. I will be able to
run the pump up to 7000 RPM and drive it with a 2 HP mill motor.
I don't think a single V belt will transmit that much HP so we shall
see. I have an eight inch die cast drive pulley and that might not
do the job so I am thinking of adding another one and use two
belts to drive the pump.

Bill ran the pump up to 5600 RPM and I am interested in seeing
what happens after that. I am also interested in seeing if the new
housing casting pumps more water at the same RPM.

I also have an optical tach so I can check the pump RPM accurately.

Paul Lamar

Looks good Paul.

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