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Mitsubishi Orion engine#4G12T

{{More citations needed|date=November 2018}}{{Infobox automobile engine

| image = 2003 Mitsubishi Colt 4G19 engine 2.jpg

| name = Mitsubishi Orion engine

| aka = 4G1

| manufacturer = Mitsubishi Motors

| configuration = Straight-4

| production = 1977–present

| predecessor = Neptune engine

| displacement = {{cvt|1244-1584|cc|L|1|disp=flip}}

| bore = {{cvt|68.2|mm|2}}
{{cvt|69.5|mm|2}}
{{cvt|71|mm}}
{{cvt|72.2|mm|2}}
{{cvt|74|mm|2}}
{{cvt|75.5|mm|2}}
{{cvt|76|mm|2}}

| stroke = {{cvt|82|mm|2}}
{{cvt|87.3|mm|2}}

| compression = 9.4:1

| block = Cast iron

| valvetrain = OHV 2 valves x cyl.
SOHC 2 or 3 valves x cyl.
DOHC 4 valves x cyl. with MIVEC or without

| fueltype = Gasoline

| fuelsystem = Carburetor
Multi-port fuel injection
Direct injection

| coolingsystem = Water-cooled

| turbocharger = TC06 (on 4G12T only)

| power = {{cvt|73-197|hp|0}}

| torque = {{cvt|10.9-15.3|kgm|Nm lbft|0}}

}}

The Mitsubishi Orion or 4G1 engine is a series of inline-four internal combustion engines introduced by Mitsubishi Motors in around 1977, along with the Astron, Sirius, and Saturn. It was first introduced in the Colt and Colt-derived models in 1978. Displacement ranges from {{cvt|1244|to|1584|cc|L|1|disp=flip}}.

4G11

The 4G11 displaces {{cvt|1244|cc|L|1|disp=flip}} with a bore and stroke of {{cvt|69.5x82|mm|2}}.

Applications:

4G12

The 4G12 (also known as the G11B) displaces {{cvt|1410|cc|L|1|disp=flip}} with a bore and stroke of {{cvt|74x82|mm|2}}. 4G12 was the first to feature Mitsubishi's MD (modulated displacement) technology, a form of variable displacement which shut off two cylinders during light load and at low speeds. The 4G12 was not offered by Mitsubishi with fuel injection. This engine is fairly outdated compared to its counterparts that were used in the later Lancers.

Applications:

=4G12T=

This is the turbocharged version of the 4G12, uses a TC-04 turbocharger from Mitsubishi Heavy Industries.{{cite magazine | ref = JH1 | magazine = Autocar | title = Putting on the pressure | first = John | last = Hartley | publisher = IPC Business Press Ltd. | page = 35 | date = 1982-06-05 | volume = 156 | number = 4459 }} The diameter of the blades in this charger is rather small, at 49 mm, and it spins at 90,000 rpm to provide {{cvt|0.53|bar|psi}} of boost. This increased power and torque by about 30 and 25 percent respectively. The Japanese-specification version of this engine produces {{cvt|105|PS|kW|0}} at 5,500 rpm and {{cvt|15.5|kgm|Nm lbft|sigfig=3}} of torque at 3,000 rpm.{{citation | ref = JAMA29 | title = 自動車ガイドブック | trans-title = Japanese Motor Vehicles Guide Book '82~'83 | language = ja | volume = 29 | date = 1982-10-20 | publisher = Japan Automobile Manufacturers Association | location = Japan | page = 168 | id = 053-820029-3400 }}

4G13

The SOHC, 12 & 16 valve 4G13 displaces {{cvt|1298|cc|L|1|disp=flip}} and produces {{cvt|75-85|PS|kW|0}} with a bore and stroke of {{cvt|71x82|mm|2}}. In the Gulf Countries, {{cvt|90|PS|0}} gross at 6000 rpm is claimed on the mitsubishi lancer CB1.{{cite web | title = Lancer GLX - Specification | url = http://www.mitsubishi-motors.com.bh/products/lancer/1600GLX/spec.html | archive-url = https://web.archive.org/web/20051218022424/http://www.mitsubishi-motors.com.bh/products/lancer/1600GLX/spec.html | archive-date = 2005-12-18 | publisher = Mitsubishi Motors | location = Bahrain }} The 4G13 engine has been produced by Dongan Mitsubishi Motors Engine Manufacturing, in Harbin, China since September 1998.{{cite web|url=https://www.mitsubishi-motors.com/en/corporate/pressrelease/corporate/detail1793.html|title=MMC and Harbin China powertrain JV sign AT licensing agreement}}

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4G15

File:1990–1992 Proton Saga 1.5L saloon in Cyberjaya, Malaysia (15, Engine).jpg.]]

The SOHC 4G15 displaces {{cvt|1468|cc|L|1|disp=flip}} with a bore and stroke of {{cvt|75.5x82|mm|2}}. A version of the 4G15 was produced with gasoline multi-port fuel injection. It has approximately {{cvt|94|hp-metric|0}} on the 1993 Mirage model. The DOHC 4G15 produces {{cvt|109|hp|0}} with {{cvt|137|Nm|lbft|0}} of torque. Another DOHC version was combined with GDI fuel injection and delivers {{cvt|100|hp-metric|0}} and {{cvt|137|Nm|lbft|0}} of torque. A DOHC MIVEC turbo variant of the engine is also still in production to date (4G15T), serving in the Mitsubishi Colt series, offering {{cvt|165|hp-metric|0}} on the latest Colt Version-R (with exhaust enhancement). The most powerful version of this engine is found in the Colt CZT Ralliart (special model in Switzerland) with a total output of {{cvt|197|hp|0}}. When installed in the Smart ForFour Brabus, the engine received the Mercedes-Benz engine code M122 E15 AL.

The 4G15 is known as one of the longest living Japanese engines ever produced where new variants of the engine are still being produced and used in Chinese cars since 2005. The 4G15 engine has been produced by Dongan Mitsubishi Motors Engine Manufacturing in Harbin, China. And also the new engines have been produced by GAC Mitsubishi Motors, a joint venture from the Hunan province in southern China, since April 2017.{{cite web|url=https://asia.nikkei.com/Business/Mitsubishi-Motors-to-begin-engine-production-in-China|title=Mitsubishi Motors to begin engine production in China}}

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=SOHC 8-valve (4G15)=

This version of the 4G15 is a single overhead camshaft (SOHC) 8-valve, carburetor type engine. It is an in-line four with a compact type combustion chamber. The engine's advertised power was {{cvt|77|PS|kW hp|0}} (DIN) and {{cvt|127|Nm|lbft|0}} of torque.

The engine is an analogue of the Mitsubishi G15B in terms of the engine mechanical specifications except for the valve timing. The G13B is also equipped with jet valves and jet springs.

SPECIFICATIONS:

Total displacement: {{cvt|1468|cc|L|1|disp=flip}}

Bore x Stroke: {{cvt|75.5x82|mm|2}}

Compression Ratio: 9.4:1

=SOHC 12-valve (4G15)=

A 12-valve version (two intake and one exhausts per cylinder) of the 1468 cc 4G15 engine. It entered production in 1989, for the third generation Mitsubishi Mirage/Lancer. It was available with a carburettor or fuel injection, producing {{cvt|85|or|100|PS|kW|0}} in Japanese market trim at the time of introduction.{{citation | ref = JAMA36 | title = 自動車ガイドブック | trans-title = Japanese Motor Vehicles Guide Book 1989~'90 | language = ja | volume = 36 | date = 1989-10-25 | publisher = Japan Automobile Manufacturers Association | location = Japan | pages = 186–187 | id = 0053-890036-3400 }} Later, a natural gas-powered version was added and in 1991 a new lean-burn technology called "Mitsubishi Vertical Vortex" (MVV) was introduced on this engine.

4G16

The 4G16 displaces {{cvt|1198|cc|L|1|disp=flip}} from a {{cvt|68.2x82|mm|2}} bore and stroke. This engine was mainly offered in European markets, where it suited local tax regulations.

Applications:

  • Mitsubishi Colt/Mirage
  • Mitsubishi Lancer

4G17

The 4G17 displaces {{cvt|1343|cc|L|1|disp=flip}}. It is a SOHC 12-valve engine. Bore and stroke is {{cvt|72.2x82|mm|2}}. Output of a carbureted version is {{cvt|78|PS|kW hp|0}} at 6,000 rpm and {{cvt|10.9|kgm|Nm lbft|0}} of torque at 3,500 rpm.{{citation | title = Mitsubishi Colt T120SS | url = http://www.ktb.co.id/eBrosur/T120SS%201.5%20MPI%20PICK%20UP%20STANDARD.pdf | page = 2 | publisher = PT Krama Yudha Tiga Berlian Motors | access-date = 2011-07-21 | url-status = dead | archive-url = https://web.archive.org/web/20110617070515/http://www.ktb.co.id/eBrosur/T120SS%201.5%20MPI%20PICK%20UP%20STANDARD.pdf | archive-date = 2011-06-17 }}

Applications:

  • 1991-2005 Mitsubishi Colt T120SS (Indonesia); production stopped due to Euro 2 emission standard that requires usage of gasoline-direct injection system, engine control unit / module (ECU/ECM), and catalytic converter usage.{{Cite web |url=http://autobild.co.id/Tips/Knowledge/mobil-irit-laik-euro2 |title=Mobil Irit = Laik Euro2 |access-date=2017-12-10 |archive-url=https://web.archive.org/web/20171210232149/http://autobild.co.id/Tips/Knowledge/mobil-irit-laik-euro2 |archive-date=2017-12-10 |url-status=dead }}

4G18

The SOHC 4G18 displaces {{cvt|1584|cc|L|1|disp=flip}} with a bore and stroke of {{cvt|76x87.3|mm|2}}. It is a 4-valve per cylinder engine, which produces from {{cvt|98|PS|0}} to {{cvt|110|PS|0}} with {{cvt|150|Nm|lbft|0}} (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. The 4G18 engine has been produced by Dongan Mitsubishi Motors Engine Manufacturing , in Harbin, China since April 2010.{{Cite web|url=https://www.mitsubishi-motors.com/en/corporate/pressrelease/corporate/detail1793.html|title=MMC and Harbin China powertrain JV sign AT licensing agreement}}

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4G19

File:2003 Mitsubishi Colt 4G19 engine 1.jpg

The DOHC MIVEC 4G19 displaces 1.3–litres and features four valves per cylinder. It produces {{cvt|90|PS|kW hp|0}} at 5,600 rpm and {{cvt|121|Nm|lbft|0}} of torque at 4,250 rpm. It was introduced in 2002, powering the then-new Mitsubishi Colt.

Applications:

  • Mitsubishi Colt

See also

References

{{reflist}}

  • [https://web.archive.org/web/20061022140330/http://www.mitsubishi-motors.com/corporate/about_us/technology/review/e/pdf/2003/15E.pdf Mitsubishi Motors Technical Review 2003, p.111]

{{commons category|Mitsubishi 4G1 engines}}

{{Mitsubishi Motors technologies}}

Orion

Category:Straight-four engines

Category:Hyundai engines

Category:Proton engines

Category:Gasoline engines by model