Centrifugal impeller / Turbine / Compressor by Engi-IRL A centrifugal impeller/turbine/compressor. Comes with a complete housing. Housing not necessary to get good flow, although it directs the blow. Not quite a compressor as it lacks compression vanes. Designed to be used with Brushless Turnigy 1000KV DC motor. The Impeller connects with splines to the motor. In my model the spline was cut out of aluminum and tapped for a set screw. Spline has interference fit into the i...