> This is interesting and good data to have, I have a couple of questions
that
> will help me interpret pump test results also.
>
> 1. If I remember right, you are using 3/4" hose to each core, with 3/4"
hose
> back to a collector near the pump, is that correct?

That is correct.

> 2. Did the 30 degree drop manifest itself before or after you did the
> modification and put in a thermostat? If before -- I would expect that it
> also lowered your operating temperature of the engine, if after I would
> suggest that the thermostat is doing its job and cutting the flow rate due
to
> cooler weather, and keeping the outlet temp of the flow to the set point.
If
> that is the case the performance during 90 degree weather will be very
> interesting to observe.

It really didn't get cool outside until after I put in the thermostat, but I
think your observation is correct.  The thermostat is reducing the radiator
flow.  I have pre-threaded the bypass hole for a pipe plug in case I need to
pull the thermostat in hot weather.

Bill Eslick