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Mitsubishi 4A3 engine

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Title: Mitsubishi 4A3 engine  
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Mitsubishi 4A3 engine

4A3
Overview
Manufacturer Mitsubishi Motors
Production 1993–present
Combustion chamber
Cylinder block alloy Cast iron
Cylinder head alloy Aluminium

The Mitsubishi 4A3 engine is a range of alloy-headed inline four-cylinder engines from Mitsubishi Motors, introduced in 1993 in the sixth generation of their Mitsubishi Minica kei car.

A 1.1 L version was made available in 1999 for bigger cars, and was subsequently fitted to the Mitsubishi Pistachio, a limited production car based on the kei class Minica, equipped with the company's Automatic Stop-Go (ASG) system for cutting the engine when idling. So equipped, the Pistachio was able to record fuel economy figures of 30 km/L.

Contents

  • 4A30 1
    • 659 cc Electro carb (1993) 1.1
    • 659 cc SOHC (1993) 1.2
    • 659 cc DOHC turbo (1993) 1.3
  • 4A31 2
    • 1094 cc SOHC (1999) 2.1
    • 1094 cc GDI (1999) 2.2
  • See also 3

4A30

Displacement — 659 cc
Bore — 60.0 mm
Stroke — 58.3 mm
Fuel type — Unleaded regular gasoline

659 cc Electro carb (1993)

  • Engine type — Inline 4-cylinder SOHC 16v
  • Fuel system — Electro carburettor
  • Compression ratio — 10.0:1
  • Power — 37 kW (50 PS) at 7500 rpm
  • Torque — 56 N·m (41 lb·ft) at 5500 rpm

659 cc SOHC (1993)

  • Engine type — Inline 4-cylinder SOHC 16v
  • Fuel system — ECI multiple
  • Compression ratio — 10.0:1
  • Power — 41 kW (55 PS) at 7000 rpm
  • Torque — 60 N·m (44 lb·ft) at 5000 rpm

659 cc DOHC turbo (1993)

  • Engine type — Inline 4-cylinder DOHC 20v
  • Fuel system — ECI multiple
  • Compression ratio — 8.5:1
  • Power — 48 kW (64 PS) at 7000 rpm
  • Torque — 97 N·m (71 lb·ft) at 3500 rpm

4A31

Displacement — 1094 cc
Bore — 66.0 mm
Stroke — 80.0 mm
Fuel type — Unleaded regular gasoline

1094 cc SOHC (1999)

  • Engine type — Inline 4-cylinder SOHC 16v
  • Fuel system — ECI multiple
  • Compression ratio — 9.5:1
  • Power — 58 kW (78 PS) at 6000 rpm
  • Torque — 103 N·m (75 lb·ft) at 4000 rpm

1094 cc GDI (1999)

  • Engine type — Inline 4-cylinder DOHC 16v
  • Fuel system — GDI Direct Injection
  • Compression ratio — 11.0:1
  • Power — 54 kW (74 PS) at 6000 rpm
  • Torque — 100 N·m (73 lb·ft) at 4000 rpm

See also

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