One of our staple products is the RB oil pump. Oil flow and pressure are dramatically increased over those of the factory oil pump, which is critical in modified engines for the 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.
With NITTO, the housing itself is made from a gravity cast casting, as opposed to a die-cast casting. EN26 inner and outer gears that are larger than standard size in order to guarantee strength, and redesigned oil galleries within the housing in order to allow for greater oil flow volume and oil pressure. It also features an aerospace-grade 7075 billet backing plate, and the kit comes complete with the gasket and front seal. The success of this oil pump has been well documented, with countless builds featuring our pump. Not only that, but also a significant number of builds that produce well over the 1000hp mark for drag racing and street applications.
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.
The oil pump kit comes complete with the gasket and front seal.
SPECIFICATIONS
- Precision EDM Wire Cut EN Series Billet Steel Gears
FEATURES
- Precision Cast and CNC Machined Alloy Outer Housing
- 7000 Series CNC Machined Billet Alloy Backing Plate
MATCHING LIST
Engine models: see notes:
- RB20DE/T > NIT-OIL-RB26 – Requires crank collar
- RB25DE/T > NIT-OIL-RB26 –Requires crank collar
- RB26DETT Early R32 Crankshafts > NIT-OIL-RB26 –Requires crank collar
- RB30DE/T NIT-OIL-RB26 – Requires crank collar
Note: The addition of a crank collar is recommended on all OEM-type RB Series Crankshafts where the engine is continually at high rpm power on, power off applications, as would be experienced under circuit racing conditions.
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 *
* Denotes Approximate Maximum Oil Pressure
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
Unconditional Satisfaction Guarantee
