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Old 05-10-2016, 06:07 PM   #16 (permalink)
some_other_dave
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Quote:
Originally Posted by drrbc View Post
...As in the two stroke the intake charge is being pulled into the cylinder as the exhaust is being pulled out. Not so in a 4 stroke. ...
Actually, many 4-stroke engines have intake and exhaust overlap, where both are open at the same time for a bit. This is especially so in higher-performance engines, though they generally don't go as far with it as 2-stroke ones do.

-soD
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