PCA SDR

To provide optimum oil flow through the alloy engine block and cylinder heads, Porsche uses integrated dry sump lubrication and three oil pumps – one in the crankcase and additional pumps within each cylinder head, thus assuring proper lubrication despite the forces of hard acceleration, braking or cornering.

Integrated dry-sump lubrication.
Oil flow that's free of cavitation is critical to a high-performance engine. Cavitation occurs when the splash of oil against moving parts like crankshaft bearings creates a foaming effect. The Boxster engines uses a dedicated oil scavenge pump to extract oil from each bank of cylinders, then sends it to a defoaming chamber, before sending it back to the oil sump From there, the oil is pumped to the lubrication points and begins the cycle once more. Originally developed for racing use, this proprietary Porsche technology ensures consistent lubrication even in the more extreme highspeed corners.