4B1x family

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The 4B1x family are all alluminum 4 cylinder engines designed by Mitsubishi, Hyundai and DaimlerChrysler under the Global Engine Manufacturing Alliance (GEMA). Mitsubishi's engines are built at Shiga in Japan. All feature double overhead chain driven camshafts with four valves per cylinder and MIVEC on both intake and exhaust valves.

The 4B1x is the successor to the much famed Sirius engine.

4B10

The 4B10 is a 1.8 Litre engine displacing 1798cc. It has a 86mm x 77.6mm bore and stroke with a 10.5:1 compression ratio. It outputs 105 kW at 6000 rpm and 177 Nm at 4250 rpm.

It is not widely used in Australia.

4B11

The 4B11 is a 2.0 Litre engine displacing 1998cc. It has a "square" bore with a bore and stroke of 86mm with a 10:1 compression ratio. Power is 113 kW at 6000 rpm and torque is 198 Nm at 4000 rpm.

It is used in the CJ Lancer.

4B11 Turbo

The 4B11 Turbo is a turbo-charged version of the 4B11. It has a lower compression ratio of 9:1. The engine doesn't use balance shafts. The 4B11 Turbo is equipped with a single-scroll turbo for the Lancer Ralliart and a larger twin-scroll turbo for the Evolution.

In the CJ Lancer Ralliart, the engine outputs 177kW at 6000 rpm and 343 Nm at 4750 rpm. In the Evolution X, the engine outputs 217 kW at 6500 rpm and 366 Nm at 3500 rpm.

4B12

The 4B12 was the first 4B1x series engine to arrive on the Australian market, debuting in the ZG Outlander.

The 4B12 is a 2.4 Litre engine displacing 2359 cc. It has a 88.0 mm x 97.0 mm bore and stroke with a 10.5:1 compression ratio. Power output is 125 kW at 6250 rpm and torque is 226 Nm at 4100 rpm.

It is used in the ZG Outlander, CJ Lancer Aspire and CJ Lancer VR-X.

MITSUBISHI PETROL ENGINES
4 cylinder
Neptune 4G41 4G42
Orion 4G11 4G12 4G13 4G15 4G17 4G18 4G19 G4ED
Sirius 4G61 4G62 4G63 4G64 4G67 4G69
Astron 4G51 4G52 4G53 4G54
Astron II Original Revised
Saturn 4G30 4G31 4G32 4G33 4G37
4G9x 4G91 4G92 4G93 4G94
4A9x 4A90 4A91 4A92
4B1x 4B10 4B11 4B11T 4B12
Inline 6
Saturn 6 6G34
V6
6G7x 6G71 6G72 SOHC 12v 6G72 SOHC 24v 6G72 DOHC Early 6G74 Late 6G74 Ralliart 6G74 6G75
6A1x 6A10 6A11 6A12 6A13
6B3x 6B31
V8
8A80 8A80