Subject: Racing Beat Aluminum end housings
From: Rotary Engine
Date: 10/30/2006, 5:40 AM
To: AA-me


Close to 50 pounds off the weight of your engine.
-- 
Paul Lamar ...No rotor no motor.

Paul,
Are they sand cast or high pressure injection cast?
George ( down under)

Sand cast. Jim Mederer is rich but not that rich:)
High pressure aluminum die casting molds are 3 or 4 hundred
thousand dollars each.

Paul Lamar ...No rotor no motor.

Paul,
They seem a little too good for a sand cast - might they be low pressure
investment cast, using a cast iron cast. They can pre-heat the cast (iron)
to allow for better flow of thinner sections of aluminum - the internal
void formers would of course have to be sand and it certainly looks that
way.
Just thinking out loud!
George (down under)


I am sure they are sand cast. I have seen the pattern. They are just
hand polished that's all. They may be using wax cores.

Paul Lamar ...No rotor no motor.

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