Join Date: Jun 2009
Ferrari Life Posts: 4,348
Dry sump means you keep the unpressurized return oil in a tank beside the engine. Wet sump means you keep the unpressurized return oil in a sump underneith the crankshaft case.
There are two major advantages with a dry sump:
1. The engine can be fitted much lower in the chassis as there is no wet sump underneith. The engine being the single most heavy part of a car means you get a substantially lower centre of gravity.
2. The oil completely exits the engine after a full lubrication cycle which provides for a lesser job to cool the oil.
Given these advantages, the dry sump solution is the preferred way to go for racing purposes and for car makers with a high ambition of performance. If you are going to track the car you are clearly better off with a dry sump. It is also a nice feeling when all the engineering of your car is made with performance in mind.
In general, if you track a sports car with wet sump lubrication you must make sure there are centrifugal bulkheads in the sump.
Ferrari's: 360 Modena, 550 Maranello
Ex's: Dino 308 GT4, 612 Scaglietti
The Rest: Rolls Royce Silver Shadow, Porsche 911 2.7s, Porsche 911 3.2 Carerra, Ducati 916... and the Land Rovers