Hi Guys, This came across the Glastar network, and it might be of interest..
(it is to me :-))  Note the high temps before he added the vanes.
Tommy <><

-----Original Message-----
From: building-fwf-alt Listmanager
[mailto:listmanager@glastarnet.glastar.org]
Sent: Thursday, September 30, 2004 11:08 AM
To: Recipients of 'building-fwf-alt' suppressed
Subject: Smoothing Flow Through Radiators

From: "Chris Lowery" <chris.lowery@sbcglobal.net>

Hi All,
       I have found that putting vanes in front of the radiators lowers the
coolant temperatures.  It seems that it straightens out the airflow so that
it goes through the radiator more easily.
I am seeing about a 10-15 degree F drop in coolant temperatures on hot days.
I mean HOT days!  When the OAT is 90 F outside, the coolant would go up to
220-230 F and there was not much I could do about it.  Now it goes to
210-220 F and then drops to 180-190 F in cruise.  This has been a problem
engine from a cooling point of view, but now I think I have improved things
a lot.
It is the Eggenfellner conversion, with a Quinti hub and Warp blades.
The blades consist of horizontal blades across the airbox in front of the
radiator, extending from one side to the other, and from just in front of
the radiator to the cowling opening.  I now have three in each airbox.  All
are spaced to divide the air coming in the cowling.

I should emphasize that this may not work in all engines, but it does seem
to help mine.

Chris L.



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