BTW how thick is the vertical-stab/engine-pylon?

That might be a good place for a rad on edge.

Robert Darrah wrote:

The Seawind fin is plenty thick, but not engineered for any holes.  And

I am

not about to put any in that location since that is what is holding up the
engine.  But it sure would be nice!

Desired radiator size is about 15 by 30 by 2..

Does anyone have any in's with any radiator manufacturing company?

Bob Darrah

You can get a 16 by 27 by 2 1/4 from Summit Racing for $200.
Made by Howe Racing. All aluminum. Should work. It is the one
I am using for my turbo 13B. Make sure you arrange it so
only cold air goes through the rad. Looks pretty easy to modify
and put the inlets and outlets where you want them.

For slightly more money I am sure Howe will build you a two
pass version with inlets and outlets on the same end.
I plan on converting mine to that configuration my self.

Paul Lamar

marc wiese wrote:

Bob,
You may want to consider a cowl configuration like the new turbine Piper
Malibu has. 2 inlets on the lower left and right side. 2 smaller radiators
instead of 1 big one. Also 2 other inlets, oil cooler and something else??
I have a picture (AOPA mag, recent review of the plane) but no scanner. The
turbine inlets feed 2 ducts that sweep up to a single intake
plenum......perhaps a radiator there? Is your 20B a turbo-behind the engine?

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