Quote:
still searching wrote:
(does anyone remember the "6 cycle" engine described in Mother Earth News in the 1970's that almost doubled power or mileage, your choice, by having two power strokes? No? Thats why I bring up these topics. Nobody is using that either that I know of.)
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Not having seen the MEN article, I thought the 6-cycle engine was intended to reduce emissions with the 2nd power stroke cleaning up any charge unburned due to reversion, etc. Without a second intake stroke, how could you get 2x anything? I'd expect 2/3 for a given displacement.