Semi-PP thought/question

RotaryProphet · 06-19-2009, 02:17 PM

Unless you can somehow close the p-port right -at- the housing, it's still going to allow intake air to flow around the apex seal and into the exhaust; you're really not going to get good driveability, even with the p-port closed.

If you move the port down low enough to prevent intake air from flowing around when the compression stroke starts, then you'll have exhaust flowing into the intake the other way... so either way you go, you still won't have the street manners of a non-p-port engine.

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06-19-2009, 02:17 PM	#8
RotaryProphet Rotary Fanatic Join Date: Sep 2008 Posts: 147 Rep Power: 17	Unless you can somehow close the p-port right -at- the housing, it's still going to allow intake air to flow around the apex seal and into the exhaust; you're really not going to get good driveability, even with the p-port closed. If you move the port down low enough to prevent intake air from flowing around when the compression stroke starts, then you'll have exhaust flowing into the intake the other way... so either way you go, you still won't have the street manners of a non-p-port engine.