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RB20DE (2.0L I6 NA/T)

RB20ET engine in an R31 Passage Wagon

RB20DET engine in Skyline GTS-4 (HNR32)

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.

The first RB20E engine was used in the C32 Nissan Laurel, produced from October 1984.

Laurels, R32 Skyline and Cefiros used the second (1989–1993) series RB20E/DE/DET. This had an improved head design, and used the ECCS injection system. These later motors are known as "Silver Top" engines.

The RB20DET-R was used in the Nissan Skyline 2000GTS-R (HR31) and was limited to 800 units.

There were a variety of 2.0 L RB20 engines produced:

• RB20E

  single-cam

  Power: 96 to 110 kW (129 to 148 hp; 131 to 150 PS) at 5600 rpm

  Torque: 167 to 181 N⋅m (123 to 133 lb⋅ft; 17.0 to 18.5 kg⋅m) at 4400 rpm

  Camshaft duration: 232° intake; 240° exhaust

  Camshaft lift: 7.3 mm intake, 7.8 mm exhaust

• RB20ET

  single-cam, turbocharged

  Power: 125 kW (168 hp; 170 PS) at 6000 rpm

  Torque: 206 N⋅m (152 lb⋅ft; 21.0 kg⋅m) at 3200 rpm

• RB20DE

  twin-cam

  Power: 110 to 114 kW (148 to 153 hp; 150 to 155 PS) at 6400 rpm

  Torque: 181 to 186 N⋅m (133 to 137 lb⋅ft; 18.5 to 19.0 kg⋅m) at 5600 rpm

  Camshaft duration: 232° intake, 240° exhaust

  Camshaft lift: 7.3 mm (0.29 in) intake, 7.8 mm (0.31 in) exhaust

• RB20DET

  twin-cam, turbocharged

  Power: 158 kW (212 hp; 215 PS) at 6400 rpm

  Torque: 264 N⋅m (195 lb⋅ft; 26.9 kg⋅m) at 3200 rpm

  Camshaft duration: 240° intake, 240° exhaust; 248° intake, 240° exhaust ("Red Top")

  Camshaft lift: 7.3 mm (0.29 in) intake, 7.8 mm (0.31 in) exhaust; 7.8 mm (0.31 in) intake, 7.8 mm (0.31 in) exhaust ("Red Top")

• RB20P

  single-cam, 12 valves, autogas LPG

  Power: 94 PS (69 kW; 93 hp) at 5600 rpm

  Torque: 142 N⋅m (105 lb⋅ft; 14.5 kg⋅m) at 2400 rpm

• RB20DET-R

  twin-cam, turbocharged

  Power: 210 PS (154 kW; 207 hp) at 6400 rpm

  Torque: 245 N⋅m (181 lb⋅ft; 25.0 kg⋅m) at 4800 rpm

• RB20DE NEO

  twin-cam

  Power: 155 PS (114 kW; 153 hp)

  Torque: 186 N⋅m (137 lb⋅ft; 19.0 kg⋅m)