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Mitsubishi Orion engine

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Title: Mitsubishi Orion engine  
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Mitsubishi Orion engine

4G1
Overview
Manufacturer Mitsubishi Motors
Also called Orion
Production 1970s–present
Combustion chamber
Cylinder block alloy Cast iron

The Mitsubishi Orion or 4G1 engine is series of inline-four internal combustion engines introduced by Mitsubishi Motors in the 1970s, along with the Astron, Sirius, and Saturn. It was first introduced in the Colt and Colt-derived models in 1978. Displacement ranges from 1.2 L to 1.6 L.

Contents

  • 4G11 1
  • 4G12 2
  • 4G13 3
  • 4G15 4
  • 4G16 5
  • 4G17 6
  • 4G18 7
  • 4G19 8
  • See also 9
  • References 10

4G11

The 4G11 displaces 1.2 L (1,244 cc) with a bore and stroke of 69.5 mm x 82.0 mm.

Applications:

4G12

The 4G12 displaces 1.4 L (1,410 cc) with a bore and stroke of 74.0 mm x 82.0 mm. 4G12 was the first to feature Mitsubishi's MD (Modulated Displacement) technology, a form of variable displacement.

Applications:

4G13

The SOHC 4G13 displaces 1.3 L (1,298 cc) (73 hp) with a bore and stroke of 71.0 mm x 82.0 mm. In the Gulf Countries, 90 PS gross at 6,000 rpm is claimed.[1]

Applications:

4G15

The SOHC 4G15 displaces 1.5 L (1,468 cc) with a bore and stroke of 75.5 mm x 82.0mm. A version of the 4G15 was produced with gasoline multi port injection. It has approximately 92 hp (69 kW) on the 1993 Mirage model. Another DOHC version was combined with GDI fuel injection and deliveres 100 hp and 137Nm of torque. There is also a DOHC 16 valve variant 110ps at 6,000rpm which is uncommon. A DOHC MIVEC turbo variant of the engine is also still in production to date (4G15T), serving in the Mitsubishi Colt series, offering 163 hp (122 kW) on the latest Colt Version-R (with exhaust enhancement). The most powerful version yet of this engine is found in the Brabus Smart Forfour, with a total output of 177 hp.

Applications:

4G16

The 4G16 displaces 1.2 L (1,198 cc) from a 68.2 mm bore and 82.0 mm stroke. This engine was mainly offered in European markets, where it suited local tax regulations.

Applications:

4G17

The 4G17 displaces 1.3 L (1,343 cc). It is a SOHC 12-valve engine. Bore is 72.2 mm and stroke is 82 mm. Output of a carbureted version is 78 PS (57 kW) at 6,000 rpm and 10.9 kg·m (107 N·m) torque at 3,500 rpm.[2]

Applications:

4G18

The SOHC 4G18 displaces 1.6 L (1,584 cc) with a bore and stroke of 76.0 mm x 87.3 mm. It is a 4-valve per cylinder engine, fuel injected. Output is 105 PS net at 6,000 rpm (Middle East specifications), 122 PS gross at 6,000 rpm (Gulf Countries specification),[1] 98 PS net with 150 Nm (European specifications). It uses a COP (Coil-On-Plug, also known as Plug-top coil) ignition rely on one coil to fire two cylinders, one of which was by spark plug wire.

Applications:

4G19

2003 Mitsubishi Colt 4G19 engine.

The DOHC MIVEC 4G19 displaces 1.3 litres and features four valves per cylinder. It produces 66 kW (90 PS) at 5,600 rpm and 121 N·m of torque at 4,250 rpm. It was introduced in 2002, powering the then-new Mitsubishi Colt.

Applications:

See also

dg

References

  1. ^ a b "Lancer GLX - Specification". Bahrain:  
  2. ^ Mitsubishi Colt T120SS (PDF), PT Krama Yudha Tiga Berlian Motors, p. 2, retrieved 2011-07-21 
  • Mitsubishi Motors Technical Review 2003, p.111
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