. BTW Chuck Dunlap is using this mounting
position.

Paul Lamar

  I talked to Chuck for quite a while on saturday. He says he has recently
improved his oil cooling dramatically. Due to the wedge shaped duct that he
used previously in combination with the assymetric way he was feeding the
air into this wedge, he was actually getting airflow in the wrong direction
at the narrow end of the wedge. He said he reshaped the entrance into the
wedge shaped duct to transition the airflow a little more smoothly and it
worked a lot better.

  He also mentioned that his cowl (and consequently, the exit side of the
oil cooler) is pressurized which decreases his pressure differential across
the core. He may try and do something to improve this as well. But at the
moment he reports that its his rad setup rather than oil cooling that is
somewhat marginal.

Mike Wills

BTW Chuck, I looked at the front cover again and I don't think
it necessary to send oil to the front cover to lube the
oil pump chain but it is necessary for the oil pressure
relief valve that is up there. (Chuck was having classic problems
with the oil O ring between front end housing and front
cover.) 

Chuck also BTW told me there were no signs of oil smoke
when starting his newly overhauled engine with the teflon encapsulated
silicone oil scrapper O-rings on the sides of the rotors.

That is very good news. 
That means they are working. If they start out working they
will work forever as they are rated at 500 degrees F. 
No real reason to doubt they would work it is just that one always
wonders when someone does something no one else has done.

IMHO this is a major increment in the ability
of the engine to tolerate inadvertent overheating of the oil.
These TES oil O-rings are cheaper than stock O-rings no less.

Paul Lamar
 
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