Ed Anderson wrote:

Paul,
    Here are a series of photos from the earliest, original oil cooler set
up  with 3" dia hose thru the 5" dia hose (which made it flyable on all but
the hotest days) to the current and last mod which places the oil cooler
under the chin similar to Jim Mosur.  This last one really did the job
reducing take off oil temp by 30-40F.

Ed

Thanks for all the photos Ed. If you don't mind I am going to limit
them to the two I think most illustrates what is working best for 
you now merely to keep the bandwidth down some what.
If anybody is interested I will send the other four.

Ed orginally started with a large area oil cooler fed with
a corrugated flex hose from a NACA duct on a steep part of the
front cowl. The oil rad was mounted vertically aft in the engine 
compartment near the firewall. You can see that oil cooler in
the last picture I uploaded of Ed's mufflers. 

The transition duct that converted
the round corrugated hose to the large area retangular oil cooler
was unsymetrical and therefor less than ideal. The NACA duct did 
not work on such a steep angle so it was changed to a snorkel 
type much like the stock RV6  carb air intake. This made an 
improvement in the oil temp. In the last configuration you see 
here Ed changed to a chin intake and a stock Mazda RX7 oil cooler.

Paul Lamar
 
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