Here is a picture of a Howe radiator  on Steve McGowan's rotary powered
gyro. Steve is running a Racing Beat manifold so the side ported engine's 
HP is well over 200 HP at 7500 RPM with 2.85:1 PSRU (I think).

Note the successful use of an air conditioner evaporator core
as an oil cooler.

Note also the welded AN hose fittings on the rad.
Nice work Steve.

Picture taken by me at Bensen Days 2K

Paul Lamar
 
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