-- 
Blake C. Lewis
RV8                            N698RV reserved

Nobody has really done any R&D on a sustained inverted oil system
to my knowledge. Here is a picture of the critical rotor cooling
oil drain back (black) passages.

If it is possible you will need a multi section scavenge pump
draining oil from several critical areas in the engine.

The passages on the left of this picture are part of
the essential oil vapor recovery system. Bruce cut these off on
Tracy's RX8 engine to save weight with rather unsatisfactory results.
Oil vapor recovery became a real problem. So things may not be
as trivial as they may first appear.

Paul Lamar

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