This is Dave's current system. He is not entirely happy
   with the water cooling.
   Air flows through the inter cooler on the left side and the oil
   cooler on the right side and then through the 2 inch thick rad
   mounted below the engine and out the exit below the cowl.
   The air is also heated by passing over the turbo charger
   and exhaust manifold before it flows through the rad.

   Does anybody have any suggestions what Dave could to to improve
   the water cooling?

   Oil cooling and inter cooling are fine.

   --
   Paul Lamar ...No rotor no motor.


   Now, thats just not telling the whole story Paul :-)

   To complete Paul's discussion, I should add that my cooling is entirely
   adequate for ground ops in hot weather, flying around normally
   aspirated, and keeping up with the other RV's.

   But there is just not enough cooling there to make all the h.p. that
   I want.

   The benifits of the system are 1) was the easiest fit in the stock cowl,
   2) makes the best use of the cooling air, as the intercooler and oil
   cooler do not add much heat.



   Dave Leonard
   Turbo Rotary RV-6 N4VY
   http://members.aol.com/_ht_a/rotaryroster/index.html
   http://members.aol.com/_ht_a/vp4skydoc/index.html

   For what it's worth,  my first thought would be to make an air entry
   in the front below the radiator going into a sealed exlpanson duct
   BELOW the radiator.  Above the radiator would be another duct which
   would isolate the exiting air (from the oil cooler, intercooler, ane
   turbo heated air) to maintain a low pressure area above the Radiator.

   Joel
   Over the Hill materials Engr


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