3G GS-R (usa spec) - 170 HP @ 7600 RPM, 128lb-ft torque @ 6200 RPM
compression ratio: 10.0:1
transmission: Y80
2G GS-R (usa spec) - 160 HP @ 7600 RPM, 117lb-ft torque @ 7000 RPM
compression ratio: 10.0:1
transmission: YS1
..hope that extra bit helps.