What this K&M graph fig 12-16 is saying is... if you have a wall behind your
rad that is less than half the height of the rad away from the
rad you are paying a severe penalty in cooling flow.
In other words a 20 inch high rad must be ten inches in front
of the firewall. Here is a picture of the rad installation
in the Power Sport RV6. Draw your own conclusions.
Are you listening Keith and Ray?

It is what I have been saying all along.
I'll be verifying this in the next couple of days with my rad test box.

That chapter 12 K&M pdf file is coming in real handy.

BTW anybody what does the software cost that converts scans to pdf files?

Paul Lamar

Applying this  to  cheek radiators, should they oriented so that the
air flow is into the cheek as opposed to toward the engine where
cooling flow would be obstructed?   I have often wondered why  cheek
rads were not angled the other way.    Jerry

You have a point there Jerry. As in this Thorp configuration.

 
Paul Lamar
 
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