X-Mozilla-Keys:                                                                                 
Jeff Spitzer wrote:

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?

There really is no down side unless you include the fractional horsepower
increase in the pump.  OTOH, improving pump efficiency is the real goal
here and power consumption may not change.  I can't speak to the racing
thing but my understanding is that there is no fix out there.  The fix I'm
looking at is not as simple as bolting a piece of sheetmetal on the
impeller. The pump is pretty screwed up and there's no room for an easy fix
if the package doesn't change dramatically.

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

Not yet.  For budgetary purposes I'd guess somewhere between $50 and $100.

Jeff Spitzer

Keep me signed up.

Paul Lamar.

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