I bought an Earls heat exchanger 12"x8"x2" for the oil cooler and am

moumting

it under the oil pan.  I am using the carb air inlet for cooling air

source.

Hank - San Mateo, Ca. LNC2 Rotary

Mike Wills wrote:

Hank,

  A word of warning. Ive been told by a friend who builds RVs and Harmon
Rockets for a living that he has had several failures of Earl's coolers. He
now uses Setrab coolers which look very similar to the Earls line. The
Earls cooler plates are assembled into a frame that is held together with
nothing more than a couple of pop rivets.

  Ive also spoken to a dealer who sells both Setrab and Earls. He said, " I
wouldn't use an Earls cooler on my lawn mower much less an airplane or race
car". At the time I had an Earls cooler on order. I cancelled the Earls
order and bought a Setrab which also coincidentally was cheaper than the Earls.

  Mike Wills

I can confirm this as Herb Adams a racer friend of mine has had bad luck
with Earl's oil coolers.

Paul Lamar
 
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