Mitsubishi 6A1 engine
Overview
ManufacturerMitsubishi Motors
Production1992–2009
Layout
ConfigurationV6 engine
Displacement1.6 to 2.5 L (1,597 to 2,498 cc)
Cylinder bore73 mm (2.87 in)
75 mm (2.95 in)
78.4 mm (3.09 in)
81 mm (3.19 in)
Piston stroke63.6 mm (2.50 in)
69 mm (2.72 in)
80.8 mm (3.18 in)
Cylinder block materialCast Iron
Cylinder head materialAluminium alloy
ValvetrainSOHC & DOHC 4 valves x cyl. with MIVEC (some versions)
Compression ratio8.5:1-10.4:1
Combustion
TurbochargerMitsubishi Heavy Industries TD03, TD025M-7G Eterna VR-4/ TD025L-7G (on some versions)
Fuel systemMulti-port fuel injection
Fuel typeGasoline
Cooling systemWater-cooled
Output
Power output99–228 kW (135–310 PS; 133–306 hp)
Torque output147–363 N⋅m (108–268 lb⋅ft)

The Mitsubishi 6A1 engine is a series of piston V6 engines from Mitsubishi Motors, found in their small and medium vehicles through the 1990s. They ranged from 1.6 to 2.5 L (1,597 to 2,498 cc) in size, and came with a variety of induction methods and cylinder head designs and configurations.

Now out of production, the 1.6 L (1,597 cc) 6A10 is still the smallest modern production V6. The small displacement was offered so Japanese buyers could purchase a powerful engine, while reducing their annual road tax obligation.

6A10

  • Displacement — 1.6 L (1,597 cc)
  • Bore x Stroke — 73 mm × 63.6 mm (2.87 in × 2.50 in)

DOHC

  • Engine type — V type 6-cylinder DOHC 24-valve
  • Compression ratio — 10.0:1
  • Fuel system — ECI multi
  • Peak power — 103 kW (140 PS; 138 hp) at 7000 rpm
  • Peak torque — 147 N⋅m (108 lb⋅ft) at 4500 rpm

Applications

6A11

  • Displacement — 1.8 L (1,829 cc)
  • Bore x Stroke — 75 mm × 69 mm (2.95 in × 2.72 in)

SOHC

  • Engine type — V type 6-cylinder SOHC 24-valve
  • Compression ratio — 9.5:1
  • Fuel system — ECI multi
  • Peak power — 99 kW (135 PS; 133 hp) at 6000 rpm
  • Peak torque — 167 N⋅m (123 lb⋅ft) at 4500 rpm

Applications

6A12

6A12 MIVEC V6 fitted to a Mitsubishi FTO
  • Displacement — 2.0 L (1,998 cc)
  • Bore x Stroke' — 78.4 mm × 69 mm (3.09 in × 2.72 in)

DOHC

  • Engine type — V type 6-cylinder DOHC 24-valve
  • Compression ratio — 9.5:1, 10.0:1, 10.4:1
  • Fuel system — ECI multi
  • Peak power — 107–110 kW (145–150 PS; 143–148 hp) at 6000–6750
  • Peak torque — 179–181 N⋅m (132–133 lb⋅ft) at 4000–4500

Applications

DOHC & sports ECU

  • Engine type — V type 6-cylinder DOHC 24-valve
  • Compression ratio — 10.0:1
  • Fuel system — ECI multi
  • Peak power (1994–1996) — 127–132 kW (173–179 PS; 170–177 hp) at 7000 rpm
  • Peak torque — 191 N⋅m (141 lb⋅ft) at 4000 rpm

Applications

MIVEC

  • Engine type — V type 6-cylinder DOHC 24-valve MIVEC
  • Compression ratio — 10.0:1
  • Fuel system — ECI multi
  • Peak power — 147 kW (200 PS; 197 hp) at 7500 rpm
  • Peak torque — 200 N⋅m (148 lb⋅ft) at 6500 rpm

Applications

DOHC Twin Turbo

  • Engine Type — V Type 6-Cylinder QUADCAM 24-Valve
  • Compression Ratio — 8.5:1
  • Fuel System — ECI Multi
  • Injector Size — 275 cc (16.8 cu in)
  • Peak Power — 158–177 kW (215–241 PS; 212–237 hp) at 6000 rpm
  • Peak Torque — 309 N⋅m (228 lb⋅ft) at 4000 rpm
  • Turbocharger Model — Mitsubishi Heavy Industries TD025M-7G Eterna VR-4/ TD025L-7G Mitsubishi Galant Sports GT 1994

Applications

  • 1994 Mitsubishi Galant Sports GT VR-4 TD025L-7G
  • 1992–96 Mitsubishi Galant VR-4 — E84A
  • 1992–96 Mitsubishi Eterna XX-4/GT — E84A
  • 1994-1996 Mitsubishi Galant Sports GT (E50-E60-E70-E80)

Accelerations:

  • 0-80 km/h (50 mph) (sec):4.3
  • 0-100 km/h (62 mph) (sec):6.4
  • 0-160 km/h (99 mph) (sec):15.6
  • 0-200 km/h (120 mph) (sec):29
  • 0-300 km/h (190 mph) (sec):
  • 0-50 mph (80 km/h) (sec):4.4
  • 0-60 mph (97 km/h) (sec):6.1
  • 0-100 mph (160 km/h) (sec):15.8
  • 0-150 mph (240 km/h) (sec):
  • 0-200 mph (320 km/h) (sec):

6A13

  • Displacement — 2.5 L (2,498 cc)
  • Bore x Stroke — 81 mm × 80.8 mm (3.19 in × 3.18 in)

SOHC

  • Engine type — V type 6-cylinder SOHC 24-valve
  • Compression ratio — 9.0, 9.5:1
  • Fuel system — ECI multi
  • Peak power — 120–129 kW (163–175 PS; 161–173 hp) at 5750 rpm
  • Peak torque — 223–230 N⋅m (164–170 lb⋅ft) at 4500 rpm

Applications

Twin Turbo DOHC

  • Engine Type — V Type 6-Cylinder DOHC 24-Valve
  • Compression Ratio — 8.5:1
  • Fuel System — MPI Mitsubishi ECI Multi
  • Peak Power — 191–228 kW (260–310 PS; 256–306 hp) at 5500 rpm
  • Peak Torque — 343–367 N⋅m (253–271 lb⋅ft) at 4000 rpm
  • Turbocharger Model — Mitsubishi TD03-7T
  • Injector Size — 390 cc (24 cu in)

Applications

Accelerations:

  • 0-80 km/h (50 mph) (sec):3.7
  • 0-100 km/h (62 mph) (sec):5.3
  • 0-160 km/h (99 mph) (sec):13.3
  • 0-200 km/h (120 mph) (sec):23.2

See also

Wikimedia Commons has media related to Mitsubishi 6A1 engines.

References

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