This is the Lancair IV EngineAir V8 cooling system.
$68,000 firewall forward. AC is an optional extra.
EngineAir does not park it in the auto engine row
as they don't want to be painted with that brush.

Half a dozen of these are successfully flying more or less.
An EngineAir Lancair IV won the 750 mile NC to OSH race overall
twice and came in second twice. Once to a Sea Fury.

The fan is made by the Italian company called
Spal. Two are used. One on each side. Part number VA13-AP6-63S. 
Supposedly used on Ferrari and other high buck
European cars.

I had a long talk
with Al Joneck(s?) the engineer on this project
and he tells me the fan does not rotate as fast as
one would think. The pressure on the front fan blades 
is somewhat canceled by the pressure on the rear blades
according to Al.

The idea of a fan makes a lot of sense. Why use a radiator and intake 
hole-duct large enough to cool on the ground and initial climb 
out when you can use an electric fan and turn it off for high speed 
cruise where the dynamic pressure available to force
air through the rad is four times higher?

Note that every hot exhaust manifold, pipe and turbo is shielded with thin
SS sheet to reduce heat radiation to the cooling system. Excellent job
of installation and I will use this as a fine example in my forum
next year on the Aerodynamics of Liquid Cooling Systems.

Paul Lamar
 
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