Instead of installing each water pump on a car and driving it to test it,we quickly put together a test stand using a 928 radiator and an old 4.5 engine we had from an old junker.Mounted a 230 volt 3 HP motor to a bracket and put some idler pulleys on it and put studs on the pump mounting holes.silicone the gasket surface and mount the pump.Fill with water and let it run for over an hour.This will lets us test the seal and pump drive and seat in the bearings and seals and should warn us of any issues.The actual pulley sizes equal a 2.125 drive ratio causing the pump to spin at almost 7400 rpm.This will also come in handy as we develop different impeller designs and will allow us to be able to measure volume as well.
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