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. Our answer to the Achilles heel of the RB engine. Our flat drive cast oil pump has a vast array of features. Firstly, the housing itself is made from a gravity cast casting, as opposed to a die cast casting. EN26 inner and outer gear that are larger than standard size in order to guarantee strength and re designed 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 a countless number of builds featuring our pump. Not only that, but also a significant number of builds that produces well over the 1000hp mark for drag racing and street applications.
| Specifications: | ||||
| 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 | |
