Dry sump oil pumps peterson fluid systems dry sump pumps utilize a revolutionary twisted lobe rotor design this design has allowed us to use all alumionum rotors in all sections saving a huge amount of weight while also increasing performance. Oil pumps peterson wet and dry sump oil pumps are used around the world in all types of motorsport they feature a unique 4 lobe design that we developed over two years and tested both in house and on the track to create the best oil pump available today. For part two of our conversation with mike from peterson fluid systems we talk all about dry sump oiling systemswe discussed a few good options to modify a. Video building an r4 dry sump oil pump with peterson fluid systems by greg acosta july 19 2019 when it comes to dry sump oiling systems precision is the name of the game an aftermarket dry sump pump operates in a totally different environment than a factory or factory replacement pump. If the dry sump tank is more than three feet away from the oil pump youll need to run a 16 reason being is that a 12 in some cases cannot flow the amount of oil the pump can will demand running a 12 for over 3 feet can cause the pressure section to cavitate leading to inconsistent oil pressure and erratic unexplainable drops in oil pressure