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The straight scoop on backpressure
Posted: Thu May 12, 2005 1:26 pm
by Pitch Black
i posted about my 3" exhaust over on the jet and someone told me to read this. its really cool and nice to know.
http://www.dsmtuners.com/forums/showthr ... scavenging
Posted: Thu May 12, 2005 3:09 pm
by Louis Zerr
I think a major misconception comes from the fact that 2 stroke engines require backpressure due to the way they work. Since the exhaust stroke and intake stroke are the same no backpressure would result in all the air/fuel/oil mixture going out the exhaust. Many fathers have passed along this information as relating to both 2 stroke and 4 stroke engines.
http://science.howstuffworks.com/two-stroke.htm