Damit Tracy, don't get me started thinking about this :-)  Has anyone tried using one of these for oil yet?  Certainly the pressure should be OK.  Arrrrrgh...

 

Rusty (not flying again soon, but certainly before Tracy's RV-8 <g>) 

 

 

I am using one for an oil cooler, mounted up in the nose cowl. I have not yet flown, but cooled great on ground run ups. Never went over 180 in the pan even when water temp went to 230.

Lonnie

 

 

Sorry to stir the pot Rusty!   But, Glad to hear the evap core is working well on the ground for oil cooling Lonnie.   The main reason I want to use one is for the more efficient use of the dynamic pressure  available at flight speeds.  The stock coolers work well but I think they require more CFM to do the job.   Minimizing cooling drag  (as many of you are tired of hearing me preach : ) is largely a mater of minimizing CFM used to do the job.  

 

 When I get the time, I want to correlate the excellent data that Ed has been sharing with how I think cooling drag works.   Some of it is counterintuitive.    For example,  minimizing aircraft cooling drag can often mean increasing the turbulence  (drag)  through the heat exchanger.

 

Tracy Crook