Mailing List flyrotary@lancaironline.net Message #42596
From: <wrjjrs@aol.com>
Subject: Re: [FlyRotary] Cooling sytem changes- Velocity 20B
Date: Tue, 29 Apr 2008 11:51:04 -0400
To: <flyrotary@lancaironline.net>
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Al, For max power lower temps are fine. Most people find max power at around 175°F. Best efficiency is usually at slightly higher temp, around 190°F. With the modern need for higher gas milage most manufacturers are going to 190° thermostats. Having a too low temperature is something of a luxury though!
Bill Jepson


-----Original Message-----
From: Al Gietzen <ALVentures@cox.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Mon, 28 Apr 2008 4:35 pm
Subject: [FlyRotary] Cooling sytem changes- Velocity 20B

Should I be concerned that my coolant temp is now down around 140-145F at cruise?  I’m thinking that is maybe a bit too low.  What effect does it have?
 
Oil temp stabilizes at about 160F for same conditions.  I think that’s probably fine.
 
Al
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