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Old 10-19-2010 | 01:25 PM
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optech
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From: Copperas Cove, Tx.
Default RE: converting a .21 nitro to spark ignition
I've not been following .21 size engine development but aren't they all ABC style construction nowadays? If so, they wont last long on Gasoline fuel. The ABC construction is pretty temperature specific when running. Gas burns hotter so I wouldn't expect the engine to last long. Look for a ringed type engine if you really want to do this.

Mike
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