Dry Sump Oil Pumps

Is your engine losing oil pressure in long corners or under hard braking? A dry sump oil pump draws the oil away from the engine into a separate tank and pumps it back, so the pressure can be kept more stable. This category is for you if you are building an engine for track or drag racing.

What does a dry sump oil pump do?

The pump is made up of several stages: typically one pressure stage that feeds oil into the engine, and a number of scavenge stages that draw the oil back from the oil pan and possibly other points and send it to the oil tank. This can reduce the risk of oil sloshing away from the pickup and make room for a shallower oil pan. If you prefer a conventional solution, you will find other types under oil pumps.

How to choose the number of stages and pressure section

• Number of stages: We have versions with 3, 4, 5 and 6 stages. More scavenge stages can draw oil from more places, but the need depends on the engine, oil pan and ventilation.
• Pressure section: Designations such as .875, 1.100 and 1.200 indicate the size of the pressure stage. The right choice depends on the engine's oil demand, bearing clearance and rpm.
• Rotor type: Several models have tri-lobe rotors.
• Extra drive: Some pumps have a drive for a fuel pump.

Installation and compatibility

The pumps are available for the left or right side and with different brackets, e.g. Brinn/Bert mounting or block mounting. Check the belt drive, brackets, hose connections and the space at the block before you order. From Moroso, the range includes series such as Black Series, Dragster and T3 Series. Tanks, hoses and other pumps can be found in the parent category for oil pumps.

Frequently asked questions

How many stages should my dry sump oil pump have?

It depends on how many places the oil needs to be scavenged from, e.g. the oil pan, valve covers or the valley between the cylinder banks. One section is typically the pressure stage, the rest are scavenge stages. Talk to your engine builder about your needs.

What does .875 or 1.200 mean in the product name?

The number indicates the size of the pressure stage and affects how much oil the pump can deliver. The right size depends on the engine's oil demand, bearing clearance and rpm range.

Does a dry sump oil pump require maintenance?

Regularly check belt tension, hose connections and filters, and inspect the scavenge stage inlets for debris. After an engine failure, the pump should typically be disassembled and cleaned, as particles can damage the rotors.