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Posted for kenpowell@alltel.net:
Hi Ed, Todd, Rusty, Leon, and List,
First of all, I want everyone to know that I really want Todd's testing to be successful - this would solve a lot of problems for me. I have been on record as doubtful of the ability of any EWP to flow enough coolant at a reasonalble amp level but you guys are making me wonder if some of our assumptions are wrong/incomplete. But I am also a pragmatist - maybe some of our prior assumptions are wrong. Thanks to Todd and Leon we will soon know the true skinny on this subject. Just as another bench mark, Powersport shared some of their instrumented data for us. Their cooling system with a stock waterpump flowing thru a crossflow radiator at 35 GPM and they had trouble cooling their 215 HP above 90 degrees at a max rate climb (sound familiar). They changed over to a standard radiator (straight flow???) and the flow rate went up to 57 GPH (can anyone verify my memory here) - note that their cooling problems went away. They can now cool 215 HP in a max rate climb for a RV-6 on a 100 degree day. Pretty impressive to me! Ken Powell As Leon points out the 80 lit/min flow is equivalent to approx 25 US
gallons/min. The only figure I recall seeing on theMazda(if memory serves me correctly)
coolant is approx 13 GPM flow. If that is the case, then thedata on
the EWP indicates it will have no problem meeting the flow needs of
the rotary. .
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