hi..again! I was just recently reading about Mazda Wankels Thermostat
 instead of taking it off why not try a Moroso Water Outlet Restrictor
 and they are cheap!!! like 7 or 8 bucks also you can make them or
 machine them you can get them at www.summitracing.com,has
 <http://www.summitracing.com,has any one tried reduction pulleys? like
 the one in the above pics from www.xtremerotaries.co
 <http://www.xtremerotaries.co they are made for high rpm engines it
 will help with cooling and reduce rotating mass freeing up some HP!!!!
 has anyone tried electric water pump? im just curious on this one and
 also it will free some more HP!!!....hope I helped on this one!

 Javier Perez

 You want to increase water flow in an aircraft engine and not restrict
 it.

 Same goes for an electric water pump.
 The water pump in a rotary consumes only 3 HP.
 Don't use an electric pump in an aircraft engine.

 Paul Lamar

The guy that built the Endurance used 2 electric water pumps with speed
controls on them.

Darren

First what is an Endurance?

Paul Lamar