Even
without further
info I can suggest that the optimum for overall system design is going
to be
with a loop delta-T in the range of 20-30 F. So at 225 hp is going to
require 27 – 35 gpm for pure water, and about 37 – 50 gpm with
50/50 water/glycol mix. Of course it is difficult to detmine ‘optimum’
heat exchanger design to go with it. Lower flow/higher delta-T needs
more
exchanger area, which is determined by airflow requirements. Steady
225
hp will need something around 6000 cfm air flow on a 90F day.
I
measured pretty
close to 50 gpm @ 6000 rpm on the dyno with no thermostat and unknown
cooling
loop pressure drop.
FWIW,
Al