Ken Gillanders wrote:

Dear Paul,

Could you please post the dimensions for the inlet duct opening area for
under the engine rad config with your size rad. I have lost that e-mail
somewhere. I am planning on putting the oil cooler beside the rad also. Was
looking at the hood scoops in Summitt Racing last night and wondered if they
would be big enough for rad and cooler? Are you going to mold your own or
buy one?

Ken Gillanders

As I recall my rad core is 14 by 19 or 266 square inches so my first guess
at this is 25% or 66 square inches. This will also feed the oil radiator
right along side so add another ten square inches or so or about 90 square.
This seems big but I will be cooling 250 turbo HP at around 100 to 120 MPH
during climb with a 2400 pound gross weight bird.
The opening will be down low right behind the prop to take full advantage
of the 10% to 15% higher dynamic pressure from the high speed prop
slipstream. Two large cowl flaps will be used on either side of
the cowl.

BTW I have just finished an article for EAA Sport Av on the Mazda
and I am thinking of writing another one called "How to Cool Your Mazda :-)

Paul Lamar
 
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