Mailing List flyrotary@lancaironline.net Message #53259
From: Thomas Mann <tmann@n200lz.com>
Subject: Re: SPAM-LOW: [FlyRotary] Re: Fw: [FlyRotary] Re: Fw: Water temps
Date: Mon, 13 Dec 2010 15:34:49 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
That is exactly what I plan on doing for the same reasons stated. I expect the oil/water exchange to moderate the oil temperature especially at higher altitudes and colder temps.
 
 
Sent: Monday, December 13, 2010 2:49 PM
Subject: SPAM-LOW: [FlyRotary] Re: Fw: [FlyRotary] Re: Fw: Water temps
 
Chrissi,
    My own opinion is that after warm up and in flight the oil temp leaving the engine before the
coolers (air or water  to oil) will almost always be well above 160-180 F..............If it is not this
high then the oil to water cooler will actually help warm it to a more efficient temp.........IMHO
 
   Somebody correct me if this is a fallacy !!.......................<:)
 

Kelly Troyer
"DYKE DELTA JD2" (Eventually)

"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold

"TURBONETICS"_TO4E50 Turbo

 
 

From: "CozyGirrrl@aol.com" <CozyGirrrl@aol.com>
To: keltro@att.net
Sent: Mon, December 13, 2010 12:52:06 PM
Subject: Re: Fw: [FlyRotary] Re: Fw: Water temps

This is where I get confused:
 
said previously,
-ideal water temp = 160*~180*F
-ideal oil temp = 160*F
 
If we are cooling oil with water that is at best hotter than the ideal temp of the oil, then are we not adding heat to it rather than removing it?
 
If we are trying to cool oil, why would we feed the highest temp water to the oil/water cooler rather than the coolest temp water by tapping into the pump housing where it enters the block?
 
Based on feedback, the water entering the block may be as low as 150*~160*F, would this be cool enough to do an adequate job of cooling the oil?
 
Also, which model of Mocal is being used?
 
...Chrissi
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