http://bertz.forumotion.net/engine-performance-f7/-t1.htm Talk all about Engine & related stuff Fri, 05 Dec 2008 10:16:36 GMT 10 http://illiweb.com/fa/prosilver/site_logo.gif http://bertz.forumotion.net/engine-performance-f7/-t1.htm http://bertz.forumotion.net/engine-performance-f7/naturally-aspirated-engine-t28.htm Smokey A naturally-aspirated engine (aspiration meaning breathing) refers to an internal combustion engine (normally petrol or diesel powered) that is neither turbocharged nor supercharged. Most automobile engines are naturally-aspirated, though turbochargers and superchargers have enjoyed periods of success, particularly in the late 1980s and the current 2000s era. Air or fuel-air mixture is forced into the cylinder by natural atmospheric pressure upon opening of the inlet valve or valves. The ... Engine & Performance Fri, 05 Dec 2008 10:16:36 GMT http://bertz.forumotion.net/engine-performance-f7/naturally-aspirated-engine-t28.htm#30 http://bertz.forumotion.net/engine-performance-f7/naturally-aspirated-engine-t28.htm