Hello Gang -- As I recall, there has been discussion of water pump failure.
Summit Engineering,  (page 20, Sep/Oct issue) lists a replacement water pump
for a Mazda Rotary engine, $249.95 for standard and $265.65 for "heavy duty,
racing".  Also requires an adapter plate for $89.95.  Has anybody tried one
of these, Brand name is "Meziere".
Buck.

That is a scam pure and simple. Electric water pumps don't work
for high continuous HP engines. Water pump power required is around 
2 to 3 HP so that is 1500 to 2300 watts or about 125 amps or 190 amps
at 12 volts. You would need a starter motor to drive a water
pump like that not to mention a much much bigger alternator
to supply the huge amounts of current required. 

Paul Lamar
 
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