> .....What's a dry sump engine? No oil pan? Is this a bad thing?..
> 
A dry sump engine carries it's oil in a tank next to the engine. There is 
no oil pan but just a slight depression where the oil pickup for the scavenge 
pump is located. The main oil pump (likely in unit with the scavenge pump) 
draws it oil from the oil tank where the foam settles out and is filtered 
and then sent to the oil cooler and then to the oil galleries. The scavenge 
pump has vastly more pumping capacity because it's pumping mostly foam.

Every aircoooled Porsche 911 engine ever built (since 1964) is a dry sump 
engine and carries on average of 11 quarts in the tank.

Like the 6.9, this all allows the engine to be lower and lighter since it 
carries little oil itself.

RLE
> 
> 
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