V. E. Welch wrote:

I am looking into installing a turbocharged 13B producing 250HP in an RV-8A.
This will of course, require the added complication of an intercooler.  I
have been considering using  a P-51 type installation for the rad and
installing the intercooler and oil cooler under  the cowling in some type of
plenum.  Would you suggest a stock Mazda oil cooler or is something else
preferable?  In order to provide additional oil cooling I intend to place a
loop of stainless tubing from the rad into the oil pan similar to Tracy's
set up.Currently I have no idea how large the intercooler will be (I hope it
will fit inside of the cowling).  Does this sound like a workable solution?

Vince

The intercooler could be in front of the rad in the P51 style duct.
What size intercooler are you thinking of using ?
I would suggest building  an oil pan out of 0.090 aluminum and 
welding a bunch of tubes into it. 
The heat exchanger then becomes a parallel type instead
of serial so for a given length of tube it is more efficient.
You will need about 15 tubes 1/2 to 5/8 inch in diameter ten or
eleven inches long. Water manifolds are then built around the outside
of the pan to input to and extract coolant from the tubes.

You could also use a two inch tube through the pan as part of
the motor mount as there is no other convient mount
at what was the rear of the engine and is now the front.
See the ACRE we site below for details.

Paul Lamar
 
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