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?

Paul,
Interesting curves -- I received the electronic file of chapter 12 today, and
it is interesting reading.

With your rad under the engine, with the sloping oil pan only a few (3?)
inches away from the back of the radiator, won't that cause a flow
maldistribution also?

Bill Schertz
KIS Cruiser #4045

I hope you taperd your oil pan. Opps I see you did not. First
is yours. Second is mine.

Not to worry just make your rad a bit wider and move it as low as
you can get it.

Paul Lamar
 
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