Nissan RB engine
| Nissan RB engine | |
|---|---|
RB30E in an R31 Nissan Skyline
|
|
| Overview | |
| Manufacturer | Nissan (Nissan Machinery) |
| Production | 1985-2004 |
| Combustion chamber | |
| Configuration | Straight-six engine |
| Displacement | 2.0 L 2.4 L 2.5 L 2.6 L 2.8 L 3.0 L |
| Valvetrain |
SOHC DOHC |
| Combustion | |
| Turbocharger | Single Garrett T3 Twin Garrett T28-type ceramic turbochargers (RB26DETT) |
| Chronology | |
| Successor | Nissan VR engine |
The RB engine is a 2.0–3.0 L straight-6 four-stroke petrol/gasoline engine from Nissan, produced from 1985-2004.
Both SOHC and DOHC versions have an aluminium head. The SOHC versions have 2 valves per cylinder and the DOHC versions have 4 valves per cylinder; each cam lobe moves only one valve. All RB engines have belt-driven cams and a cast iron block. Most turbo models have an intercooled turbo (the exceptions being the single cam RB20ET & RB30ET engines), and most have a recirculating factory blow off valve (the exceptions being when fitted to Laurels and Cefiros) to reduce compressor surge when the throttle quickly closes. The Nissan RB Engine is derived from the six cylinder Nissan L20A engine which has the same bore and stroke as the RB20. All RB engines were made in Yokohama, Japan where the new VR38DETT is now made. Some RB engines were rebuilt by Nissan's NISMO division at the Omori Factory in Tokyo as well. All Z-Tune Skylines were completely rebuilt at the Omori Factory.
All Nissan engines follow a naming convention, identifying the engine family (in this case, RB), displacement, features present—see the list of Nissan engines for details.
The stock dimensions for the Nissan RB Engine
There were a variety of 2.0 L RB20 engines produced:
The first RB20ET/DE/DET engines were fitted to the HR31 Skyline and the Nissan Fairlady 200ZR (Z31 chassis), produced from August 1985. The early twin cam engines featured the NICS (Nissan Induction Control System) injection system, while the later twin cam engines used ECCS (Electronic Concentrated Control System). Later versions which used ECCS engine management, discarded the twelve tiny runners for six much larger ones (though they retained twelve ports on the head, so there was a splitter plate). It was also fitted to the A31 Cefiro, C32 and C33 Laurel. The Fairlady 200ZR was fitted with an intercooled NICS type RB20DET.
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