> Today I added an approximately 3/4 inch thick foam along the leading edge of my cowling, which also is the entrance lip of my NACA duct. I sanded it to a basic airfoil shape with hopes
     it would help
     > with air induction into the duct. Will know in a day or two.
     >      I also removed my thermostat, and noted that the coolant was not up to the top of the water pump housing....I had previously ran the engine until it got hot enough to spew coolant
     from the
     > expansion tank to see if it would quit from vapor lock. (It didn't....kept running at 240F). After loosing that coolant, I should have refilled the coolant using the bleed hose at the
     highest point
     > of the system (on top of the waterpump housing)..
     >     Also, I am using a 160 degree thermostat. I'm thinking I would be better off with a 180 or 190 degree thermostat (or none at all and cowl flaps).  Any opinions?  Thanks in advance
     for all
     > replies.  Paul Conner

     Cowl flaps are less drag as they can be partially closed during cruise.
     Have you read my How to Cool article on the web site below?

     Paul Lamar

     Hi, Paul....no I had not yet read your How to Cool article....appears to be very well written and is obvious that a lot of research was done prior to writing it. I will read it in it's
     entirety tonight.  Thanks.  Paul Conner

 
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