Thread: Blown motor
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      11-24-2012, 04:10 PM   #28
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Per factory docs:

Two oil pumps are installed in the S65 engine; the oil return pump, which is driven via a gearwheel by a crankshaft, and the volume flow-controlled main oil pump, driven via chain drive by the oil return pump.

The duocentric design of the oil return pump ensures that oil is always available at the inlet pipe of the main oil pump in the rear area of the oil pan, i.e. even when braking sharply from high speeds.

The electrical oil return pumps installed in the S85 for scavenging the cylinder heads are no longer required, which results in a furtherweight saving. This is made possible by the lower number of cylinders, modification of the oil return routes, and the large capacity of the oil pan. The oil pan has a capacity of 8.3 litres (S85 9.3 litres). The oil supply is also guaranteed at extreme longitudinal and lateral accelerations of up to 1.4 times the normal gravitational acceleration.

So it looks like changes would only be necessary if we're dealing with forces greater than 1.4 times the normal gravitational acceleration.
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