Hi Tracy, Glad you are home safe!
Please, give us all a 1-2-3 step procedure on measuring the pressures fore
and aft of the rads..  I think Hank and I might need to do this..:-)
Tommy<><

TC wrote:
Cooling is working really well now.   Had a 25 minute ground taxi before
departure and water temp was up to 205 when I started my takeoff roll.  Temp
was already droping as I climbed out.  After futzing with cooling systems on
the plane for almost 10 years now, I am convinced that the key factor is
pressure recovery.  If you are having cooling problems, measure the pressure
in front of the rad.  If it is not a high percentage (at LEAST 60 - 70%) of
dynamic airspeed pressure, start working on your inlets and/or ducts.  Back
side pressure should be fairly low too (mine is about 2" H2O) but front side
pressure is the 400 pound gorrilla in airplane cooling.