Honda G engine
The Honda G-series engine is a family of slanted inline-five cylinder gasoline engines. The engine family features a single overhead cam layout with 4 valves per cylinder. The engine's displacement varied from to. The G-Series was originally used in the 1989 Honda Vigor, Honda Rafaga, Honda Ascot and Honda Inspire before being carried over to the Vigor's successor; the Acura TL, which used the G-Series family of engines from 1995 to 1998 in North America, and continued use in the JDM Honda Saber until 1998 as well.
G20A
Displacement: Bore x Stroke: Compression ratio: 9.7:1Max Power: @ 6700 rpmMax Torque: @ 4000 rpmRedline: 6800 rpmFuel Cutoff: 7100 rpmFound in the 1989-1991 JDM Inspire/Vigor, 1992-1994 JDM Inspire/Vigor 20, 1993-1997 JDM Ascot/Rafaga 2.0, and 1995-1997 JDM Inspire/Saber 20.
G25A
Displacement: Bore x Stroke: Compression ratio: 10.0:1Max Power: @ 6500 rpmMax Torque: @3800 rpmRedline: 6800 rpmFuel Cutoff: 7100 rpmFound in the 1992-1994 JDM Inspire/Vigor 25, 1993-1997 Ascot/Rafaga 2.5S, and 1995-1997 JDM Inspire/Saber 25.
G25A1
Compression ratio: 9.0:1Found in the 1992-1994 USDM & CDM Acura Vigor.
G25A4
Compression ratio: 9.6:1Power:
Found in the 1995-1998 USDM & CDM Acura 2.5TL.