Honda G engine

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Honda G engine
Overview
ManufacturerHonda Motor Manufacturing
Production1989–1998
Layout
ConfigurationNaturally aspirated inline-5
Displacement2.0–2.5 L; 121.8–149.6 cu in (1,996–2,451 cc)
Cylinder bore82 mm (3.23 in)
85 mm (3.35 in)
Piston stroke75.6 mm (2.98 in)
86.4 mm (3.40 in)
Cylinder block materialAluminum
Cylinder head materialAluminum
ValvetrainSOHC 4 valves x cyl.
Compression ratio9.0:1-10.0:1
RPM range
Max. engine speed6800
Combustion
Fuel systemFuel injection
Fuel typeGasoline
Cooling systemWater-cooled
Output
Power output114–140 kW (155–190 PS; 153–188 hp)
Torque output19–24.2 kg⋅m (186–237 N⋅m; 137–175 lb⋅ft)

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 2.0 L; 121.8 cu in (1,996 cc) to 2.5 L; 149.6 cu in (2,451 cc). 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[edit]

  • Displacement: 2.0 L; 121.8 cu in (1,996 cc)
  • Bore x Stroke: 82 mm × 75.6 mm (3.23 in × 2.98 in)
  • Compression ratio: 9.7:1
  • Max Power: 114–118 kW (155–160 PS; 153–158 hp) @ 6700 rpm
  • Max Torque: 19 kg⋅m (186 N⋅m; 137 lb⋅ft) @ 4000 rpm
  • Redline: 6800 rpm
  • Fuel Cutoff: 7100 rpm

Found in the 1989-1991 JDM Inspire/Vigor (CB5), 1992-1994 JDM Inspire/Vigor 20 (CC3), 1993-1997 JDM Ascot/Rafaga 2.0 (CE4), and 1995-1997 JDM Inspire/Saber 20 (UA1).

G25A[edit]

  • Displacement: 2.5 L; 149.6 cu in (2,451 cc)
  • Bore x Stroke: 85 mm × 86.4 mm (3.35 in × 3.40 in)
  • Compression ratio: 10.0:1
  • Max Power: 140 kW (190 PS; 188 hp) @ 6500 rpm
  • Max Torque: 24.2 kg⋅m (237 N⋅m; 175 lb⋅ft) @3800 rpm
  • Redline: 6800 rpm
  • Fuel Cutoff: 7100 rpm

Found in the 1992-1994 JDM Inspire/Vigor 25 (CC2), 1993-1997 Ascot/Rafaga 2.5S (CE5), and 1995-1997 JDM Inspire/Saber 25 (UA2).

G25A1[edit]

  • Compression ratio: 9.0:1

Found in the 1992-1994 USDM & CDM Acura Vigor (CC2).

G25A4[edit]

  • Compression ratio: 9.6:1

Power: 176 hp (131 kW; 178 PS)

Found in the 1995-1998 USDM & CDM Acura 2.5TL (UA2).

Gallery[edit]

References[edit]