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Old 11-18-2008 | 11:08 PM
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av8tor1977
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Default RE: SCORE Echo 30cc going to be a good one.
It measures out to be 25.4cc.

The formula I use because it is easy to remember is: (bore x bore) x stroke x .7854 = displacement

Bore is 1.339"
Stroke is 1.10"

(1.339" x 1.339" ) x 1.10" x .7854 = 1.55 cubic inches.

1.55 cubic inches divided by .061 to get cc's is 25.4cc

AV8TOR

(EDITED to correct bore size)
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