RB High Volume Oil Pump
RB CRANK COLLAR (REQ'D FOR EARLY R32 GTR, ALL GTS-T AND RB30)
The NITTO RB series high volume oil pump is a high quality performance aftermarket oil pump that will suit Nissan RB20, RB25, RB26 and RB30 engines. Oil flow and pressure are dramatically increased over that of the factory oil pump which is critical in modified engines for reliability of the lubrication system. Failure of this system is the Achilles heel of the Nissan RB series engine even on mildly tuned examples and accounts for a high percentage of RB engine failures.
Factory based oil pumps are highly prone to oil pump gear failure in modified engines due mostly to the quality of the cheaper mass produced material used in the manufacturing of the OEM style gears. Oil pump gear failure will result in inevitable engine damage. For this reason, EN Series billet steel material is utilised for the manufacture of NITTO RB series high volume oil pump gears which are far superior in strength and durability to that of both the factory and its competitor's oil pump gears.
NITTO utilizes their precision CNC machined cast alloy outer housing and along with their already proven oil pump design, NITTO has now released a new billet alloy backing plate allowing further stability to oil pressure and flow at high rpm levels by minimizing any possible flexing of the housing.
NITTO RB series oil pumps are supplied pre-inspected, blueprinted, assembled and cleaned to enable direct installation straight onto your engine and assure total confidence.
FLOW RATES (LITRES / MIN)
ENGINE RPM FACTORY PUMP NITTO HIGH VOLUME PUMP
750 4.6 6.5
2200 15.3 20.2
7000 46.5 64.8
PRESSURE RELIEF VALUE (RELEASE PRESSURE)
Dual Springs
120 psi *
Outer Spring Only
75 psi *
NITTO OIL PUMP GEAR VS FACTORY GEAR DIMENSIONS
DIMENSION
FACTORY
NITTO
DIFFERENCE
Outer Gear Diameter
76.85MM
81.50MM
6% LARGER
Outer Gear Width
11.00MM
14.35MM
23% LARGER
Tooth To Outer Wall Width
2.55MM
4.85MM
47% LARGER
GEARS
Precision EDM Wire Cut EN Series Billet Steel
HOUSING
Precision Cast and CNC Machined Alloy Outer Housing
7000 Series CNC Machined Billet Alloy Backing Plate
