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Porsche 996/997 Camshaft Timing :
Rokket Horton Explains Camshaft Valve Timing on M96/M97 3-Chain Chain Porsche Engines for the 996 and 997 series of the Porsche 911. M96/M97 Cams are set in the overlap position on cylinders #1 and #4. Overlap is a state of which the Intake and Exhaust Valves are both open at the exact same time. The Valve Timing Overlap starts the Intake Stroke/Charge a few crankshaft degrees early and the Scavenging effect of the Exhaust Gas Velocity draws Cool air over the crown of the pistons, helps cool exhaust valves, as well as several other performance advantages,
Hope this helps anyone struggling with these fairly complex engine builds.....Rokket
Porsche 996 997 M97 Base Camshaft Timing Specs 3.6L 3.8L Made simple
Porsche Camshaft Timing , Porsche Cam Timing, Porsche 997, Porsche 996, Porsche Carrera, Porsche 997S, Porsche Carrera 4S, Porsche Carrera S, Porsche X51 Rokket Horton Porsche Engine Builder