Author Topic: Hard To Find Or Custom Piston Rings  (Read 3032 times)

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Offline 660magnum

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Re: Hard To Find Or Custom Piston Rings
« Reply #10 on: December 27, 2011, 07:24:27 pm »
I never noticed any closed port cylinders under 45cc?

The Zenoah/Redmax 45, 62, and 80 twin are all open port.

The Chinese DLE 20 & 30cc cylinders have very generous open ports but the 50 & 55cc are closed port reed valve engines
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