Thanks again.
I recently installed a MoCal Laminova 43-330
oil/water heat exchanger as a backup to my oil/air cooler. It works as
advertised; and will handle roughly ¼ - 1/3 of the heat load for the 20B. That was
all I needed to keep my oil temps below max during climb on a hot day.
Setrab still makes a couple of units of
lower capacity TOC-150 and TOC-200, but the larger TOC-300 is currently out of
production.
Fluidyne no longer makes oil/water
units, but some still show up now and then on e-bay.
C&R racing will make a higher capacity
unit for you – at a price.
Al