[ROVERNET - UK] exhaust and back pressure

Connie R Pennington wcpennington at juno.com
Wed Aug 11 18:28:46 BST 2004

Hi Kenneth,
      On 4 stroke engines the less back pressure the better. I know of no
way to measure
it. Some two stroke engines benefit from some back pressure and some
newer 4 cycle
engines have "tuned exhaust systems" which further reduce back pressure.
Yes you can unhook
the muffler behind the exhaust pipe and not hurt anything but your ears. 

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