RB-20DE
type: 1998cc EFI dohc 24-VALVE 6-cyl
Power: 116kw @ 6400rpm
Torque: 184Nm @ 5200rpm
Gearboxes: RWD 5sp and 4sp auto
Source: 89-92 laurel and skyline
RB-20DET
type: 1998cc EFI dohc 24-valve 6-cyl turbo
compression: 8.5:1
bore and stroke: 78x69.7mm
standard boost: 0.5 bar (7psi)
throttle body: 60mm
airflow meter: 76mm
ECU type: nissan eccs
remappable: yes
injector: 270cc high impedance (12-14ohm) top feed
power: 215hp/160kw @ 6400rpm (auto 153kw @ 6400rpm)
torque: 263Nm @ 3200rpm (auto 265Nm @ 3200rpm)
gearboxes: RWD 5sp and 4sp auto
source: 89-92 skyline gts-t and cefiro sedan, also Z31 fairlady zr 125kw, r31 skyline gts-x 132kw NICS version.
RB-25DE
type: 2498cc EFI dohc 24-valve 6-cyl
power: 134kw @ 6000rpm (148kw @ 6000rpm in r34 NEO)
torque: 225Nm @ 5200rpm (255Nm @ 4000rpm in r34 NEO)
gearboxes: rwd 5sp and 4sp auto
source: 92-95 cefiro and skyline
RB-25DET
type: 2498cc EFI dohc 24-valve 6-cyl turbo
power: 185kw @ 6400rpm (206kw @ 6400rpm in r34 NEO)
torque: 295Nm @ 4800rpm (343Nm @ 3200rpm in r34 NEO)
gearboxes: RWD 5sp and 4sp auto
source: 93-94 skyline gts-25t
RB-26dett
type: 2597cc EFI dohc 24-valve 6-cyl twin turbo
power: 206kw @ 6800rpm
torque: 353Nm @ 4400rpm (368Nm 1n r33, 392Nm in r34)
gearboxes: 4WD north south 5sp and 6sp
source: 1989-on skyline GT-R
hope this helps somewhat
all info sourced from "ZOOM" magazine here in australia..
