X-Mozilla-Keys:                                                                                 
Ed Anderson wrote:

 Jeff,
    I guess I am a little surprised that with all the guys racing rotaries
generating large horsepower figures (compared to what we are generating in
aircraft) that if there were something to be gained from increasing water
flow that it has not been done.  Is there some other limitation,(size of
water galleys) that reduce benefical effects of increasing water pump flow?

    I for one would like to have a pump that increased flow by 25-30%
especially for a turbocharged application. . I have notice that there is an
aftermarket kit for Ford/Chevy water pumps that involves pop riveting on a
disk of metal to the back side of the empellor blades which it claims
increases water pump output by 25%.  Cost off kit was around  $30 as best I
recall.  It consisted of the metal disk and several pop rivets.

    Do you have any ball park estimate what reworking a stock water pump
would run?

Ed Anderson
Matthew NC

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