there are a couple of user groups that talk about these problems - search under 'Soob' or Subaru (popular auto A/C engine) and the magazine Contact! Lots of 'been there, done that' testimonials. Aviod the 'I heard that the way to do that is...' statements; nothing is better than actually trying the hardware in flight, and one test IS worth a hundred expert opinions. There are even facts about whether an oil/water cooler is necessary or useful. Good luck and fly safe!

Dos Canis,
     Thanks for the tips. I am already on the flyrotary list, but I was seeking some different veiws on the subject. A lot of the aviation community tends to cling to an idea that works whether it is the best solution to a problem or not, a good example being magnetos that have to be rebuilt every 400 hrs are considered to be more reliable than an electronic ignition which may go for 200,000 miles plus in a car without any sort of wear or failure.
     I am indeed basing my installation on a combination of flying and successful conversions. I am using a cooling system based on Tim England's Chevy V-6 Velocity, an engine mount based on Ed Anderson's rotary RV-6 and Neil Kruswyck's rotary 235 Lancair, and I am using Tracy Crook's redrive and engine computer. It's kind of like putting together a big jigsaw puzzle, but there is no picture and you have to cut the parts to fit!  Mike C.