Bill Schertz,

I'm very interested in this as I'm looking for a suitable remote mounted
water pump.
You have done a splendid job on this in educating the non-engineer.
I've done a couple of quick calculations to see it the outcome for different
HP is relative, and it is.

What is not clear to me is that  the dT of 10 degrees gives an outcome of 35
gal/ min (i.e. 349/10) but for the 50 degrees difference we expecting to
see, the 349/50 isn't appropriate and I'm guessing you mean - divide by ten
and them multiply by 5, or 5/10, or 1/2.

So one of my questions is, do we see the Mazda  water pump delivering these
outcomes of 175 gal/min for 100 hp, 265 gal/min for 150hp and 350 gal/min
for 200hp?
Is my thinking on this correct; as it just seems like a lot of coolant to
pump.
George ( down under)