Just posting some things I did not see in this thread, however it may be in the links. Plz delete if overlapping.
SR = Block
20 = 2.0L Displacement
D = DOHC
E = Fuel Injected
T = Single Turbocharger
2.0L DOHC Turbo
Turbo Type: T25G
Compressor A/R: 0.80
Injector Size: 370cc
Bore x Stroke: 86.0mm x 86.0mm
Displacement: 1998cc
Performance: SR20DET:
Power (ps): 205@ 6000 rpm
Torque (kgm): 28.0@ 4000 rpm
Compression Ratio: 8.5:1
Speed Limiter:180 Kmh -112 mph
Stock Boost: 7 psi
ECU: 62 (redtop) OR E5 (blacktop). 63 (automatic) will also work.
MAFS: 89-90 240sx mafs works.
Rev Limit: 7500rpm (no need to really go over 7200)
Gear Ratios:
Gear Ratios - Manual Transmission
1st 3.321
2nd 1.902
3rd 1.308
4th 1.000
5th 0.759
Reverse 3.382
Final 4.083
S13 ECU Pinout (thanks to CM510.com)
Zenki S14 SR ECU Pinout (thanks to 200sx.org)
Classic battery area wiring diagram from heavy throttle: