Posted 9/11/2010 20:47 (#1355769 - in reply to #1355655) Subject: Re: 318 Detroit: Max rpm for tractor pull?
Devils Lake, ND
Jon Hagen - 9/11/2010 18:40
...the exhaust valves are open any time the intake ports are open...
Not quite. The exhaust valves are open any time the piston is below the ports. If the intake valves are open at the same time, the blower pushes the exhaust out of the cylinder.