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Old 07-14-2008, 09:07 PM   #36 (permalink)
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Originally Posted by jonr View Post
Generally not very efficient - they have too much combustion chamber surface area - so the hot gases cool off before you can get work out of them.
that would make sense

not to get off topic but are there any other non fourstroke engines that people are working with? is there another thread somewhere that covers different engine types?
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