REFLECTOR: Anyone flying a STD-RG with a single, rear mounted oil cooler?

[John Dibble]

In my experience, oil cooling is highly dependent on cooler size.  I 
would consider a larger cooler.

John

On 8/20/2012 2:22 PM, Dave T Nelson wrote:
>
> Winter is coming here in Minnesota, and so I'm thinking about what I 
> want to plan for winter projects.  Klaus Savier has been after me for 
> years to get rid of my nose mounted oil cooler and go to a single oil 
> cooler in the rear.
>
> My current setup is with the roof mounted NACAs, and one "standard" 
> cooler (in the nose).  My CHTs are reliably all low, particularly in 
> cruise where my highest cylinder will be at around 340 (with the 
> lowest as low as 260).   My oil temp is reliably around 200 - 210 in 
> cruise on a warm day, and less than 200 on a cool day.  My issue is in 
> long climbs.  I regularly fly out to the mountains, and also I like to 
> go high (16K or more) when the winds favor.  In a full power sustained 
> climb, say from takeoff to 12K, if I'm not careful I can easily get 
> the oil to redline.
>
> So, in net, my cruise temps are fine, but my climb oil temp could be 
> improved.
>
> Klaus is after me to move the oil cooler for drag reduction (not oil 
> temp).  The large "NACA" in the nose along with the outlet ramp 
> represents a sizeable amount of drag.  Less Drag = More Speed = Klaus.
>
> So... winter is coming, and I'm thinking of moving the cooler to get 
> better cooling and to reduce drag.  But, before I get into a big mess...
>
> *What experience is out there regarding STD-RG IO-360 Velocities with 
> a single oil cooler in the back?*
>
> Thanks!
>
> Dave
>
> Dave T. Nelson
> STD-RG N22DN
>
>
>
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