text: 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:  at 5600 rpm
  Torque:  at 4000–4400 rpm
  Camshaft duration: 232° intake; 240° exhaust
  Camshaft lift: 7.3 mm intake, 7.8 mm exhaust
  RB20ET
  single-cam, turbocharged
  Power:  at 6000 rpm
  Torque:  at 3200 rpm
  RB20DE
  twin-cam
  Power:  at 6400 rpm
  Torque:  at 5600 rpm
  Camshaft duration: 232° intake, 240° exhaust
  Camshaft lift:  intake,  exhaust
  RB20DET
  twin-cam, turbocharged
  Power:  at 6400 rpm
  Torque:  at 3200 rpm
  Camshaft duration: 240° intake, 240° exhaust; 248° intake, 240° exhaust ("Red Top")
  Camshaft lift:  intake,  exhaust;  intake,  exhaust ("Red Top")
  RB20P
  single-cam, 12 valves, autogas LPG
  Power:  at 5600 rpm
  Torque:  at 2400 rpm
  RB20DET-R
  twin-cam, turbocharged
  Power:  at 6400 rpm
  Torque:  at 4800 rpm
  RB20DE NEO
  twin-cam
  Power:
  Torque:
  RB24S (2.4L I6)
  This is a comparatively rare engine, as it was not produced for the Japanese domestic market. These were fitted to some left hand drive Nissan Cefiros exported from Japan new. Mechanically, the RB24S combines an RB30E head, RB25DE/DET block and RB20DE/DET crank with 34 mm height pistons. The resulting  bore and stroke combined to form a  inline-six engine.