Hi Ryan, check following link for guidance … http://www.rotaryaviation.com/faq.html
General consensus is maximum oil temperature into engine, after
oil cooler is 210F – this is to protect rotor oil seals.
Suggested maximum continuous operation <200F for both oil (inlet)
and water (block) temperature.
My suggestion would be 160F to 190F for both as normal cruise operating
temps.
JWW
From: Rotary motors in
aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ryan Wilkins
Sent: Tuesday, October 20, 2009 3:06 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Cold Oil ... was Spark Plugs
Is there some guidance somewhere indicating the appropriate
temperature range? I've just recently started to look into using a 20B
for a homebuilt (probably Velocity XL5) and I'm just trying to make sense of
all this. As this is my first post to the list, I'll introduce myself a
little later on today.
On Oct 20, 2009, at 1:26 PM, Jeff Whaley wrote:
Hey Rino, I would agree that 125F is too cold as well.
My situation is different though as the water temp is 175F when
the oil is 135F … I plan to make some restrictor grills for my oil cooler
inlets – shooting for 160F year-round. Don’t forget that is
oil-inlet temperature; not sure what the pan or oil-out temperature would be.