GM small gasoline engine

Last updated

Small Gasoline Engine
Opel Motor B10XFT Einlass-Seite Aufgeschnitten.jpg
Also calledMicrotec
Production2013 (2013)–present
  • 999 cc (1.0 L; 61.0 cu in)
  • 1,117 cc (1.1 L; 68.2 cu in)
  • 1,399 cc (1.4 L; 85.4 cu in)
  • 1,490 cc (1.5 L; 90.9 cu in)
Cylinder bore 74 mm (2.91 in)
Piston stroke
  • 77.4 mm (3.05 in)
  • 77.7 mm (3.06 in)
  • 81.3 mm (3.20 in)
  • 86.6 mm (3.41 in)
Block material Aluminium
Head materialAluminium
Valvetrain DOHC 4 valves x cyl.
Compression ratio 10.0:1 - 12.5:1
RPM range
Redline 6500
Turbocharger Mitsubishi Heavy Industries one-stage single-scroll (some versions)
Fuel system
Fuel type
Oil system Wet sump
Cooling system Water cooled
Power output 55–121 kW (74–163 hp; 75–165 PS)
Torque output 95–249 N⋅m (70–184 lb⋅ft)
Dry weight98 kg (216 lb)
Successor GM E-Turbo engine (1.4 Version)

The GM Small Gasoline Engine (SGE) is a family of small-displacement three- and four-cylinder gasoline engines ranging from 1.0 L to 1.5 L, developed by Adam Opel AG, Shanghai Automotive Industry Corporation (SAIC), MG Motor (MG), Shanghai GM (SGM) and the Pan-Asia Technical Automotive Center (PATAC). [1]


The new global family is designed to improve fuel economy, performance, and emissions, reduce noise and vibrations. To achieve this, it features lightweight design and advanced technologies like gasoline direct injection, turbocharging, variable length intake manifold and alternative fuel compatibility. It utilizes modular approach with interchangeable components that can be suited to specific application.

The initial engine variants include

To aid with NVH (Noise, vibration, and harshness) levels the direct injection fuel rail mounts to the cylinder head and valve cover via bushings that isolate that loud ticking noise the injector pintles make. GM claims that the 1.0-liter turbo is 25 percent (3 dBA) quieter than the Ford Fiesta's 1.0-liter turbo, and the 1.4-liter is up to 50 percent (6 dBA) quieter than the VW/Audi 1.4-liter turbo. Other silencing measures include a bed-plate cylinder block that increases stiffness, a stiffened aluminum front cam cover. Three-cylinder variants get a counter-rotating (engine-speed) balance shaft that is integrated with the oil pump and located inside the two-piece aluminum oil pan to prevent radiated noise. GM claims the EcoTec triple will idle more smoothly than Ford's three-cylinder, which does not use a shaft. [2]

All turbocharged variants will provide 90 percent of their max torque between 1500 and 5000 rpm, with peak power arriving between 5600 and 6000 rpm. The MHI turbos are sized to provide quick torque response, and are mounted very close to the cylinders, thanks to cylinder heads that incorporate the exhaust manifolds in the head. [2]

To reduce mass, the engines are compact in all directions, made almost entirely of aluminum, and feature composite intake manifolds. This removes 44 pounds (20 kg) from the existing 1.4-liter turbo in the Cruze and makes it 8 pounds (4 kg) lighter than the 1.4-liter VW turbo. GM says this engine weighs 216 pounds (98 kg), ready for installation. [2]

The engines will debut in the 2014 Opel Adam [3] and will be produced in Szentgotthárd, Hungary [4] [5] and GM's Flint Engine plant. [6] The new engine family will spread to other brands and markets by the end of the decade and will replace three separate engine families (S-TEC, Family 0, and Family 1).

The engine is used in:

The assembly lines for North American facilities were manufactured by Hirata Corporation at their powertrain facility in Kumamoto, Japan.

Non-Opel Variants



The LV7 is the multi-point fuel injection 1.4L naturally aspirated variant of the SGE engine, with a 74 mm × 81.3 mm (2.91 in × 3.20 in) bore and stroke for a total capacity of 1,399 cc (1.4 L). Compression ratio is 10.6:1 and the engine can run on regular unleaded grade gasoline. Assembly is in Changwon, South Korea.

Year(s)ModelPowerTorqueDyno Chart
2016- Chevrolet Spark 73 kW (98 hp) @ 6200 rpm128 N⋅m (94 lb⋅ft) @ 4400 rpm dyno chart


The LE2 is the direct-injection 1.4L turbocharged variant of the SGE engine, with a 74 mm × 81.3 mm (2.91 in × 3.20 in) bore and stroke for a total capacity of 1,399 cc (1.4 L). Compression ratio is 10.0:1 and the engine can run on regular grade gasoline. The LE2 is also paired with Start-Stop technology in some vehicles.

Year(s)ModelPowerTorqueDyno Chart
2016-2019 Buick Encore Sport Touring114 kW (153 hp) @ 5600 rpm240 N⋅m (177 lb⋅ft) @ 2000-4000 rpm
2016- Chevrolet Cruze 114 kW (153 hp) @ 5600 rpm240 N⋅m (177 lb⋅ft) @ 2000-4000 rpm dyno chart



The L3A is the direct injection 1.5L naturally aspirated variant of the SGE engine used in the second generation Chevrolet Volt, with a 74 mm × 86.6 mm (2.91 in × 3.41 in) bore and stroke for a total capacity of 1,490 cc (1.5 L). Compression ratio is 12.5:1 and the engine can run on regular unleaded grade gasoline. Maximum engine speed is 6000 rpm.

Year(s)ModelPowerTorqueDyno Chart
2016- Chevrolet Volt 75 kW (100 hp) @ 5600 rpm140 N⋅m (103 lb⋅ft) @ 4300 rpm


The LFV is a direct-injection cast aluminum DOHC 1.5 L turbocharged SGE variant, with a 74 mm × 86.6 mm (2.91 in × 3.41 in) bore and stroke for a total capacity of 1,490 cc (1.5 L). Compression ratio is 10.0:1 and the engine can run on regular unleaded grade gasoline. Maximum engine speed is 6500 rpm. Automatic Start-Stop is available with this engine. Assembly is in Shanghai (China), Changwon (South Korea), Toluca (Mexico), Spring Hill (Tennessee) and Flint (Michigan).

Year(s)ModelPowerTorqueDyno Chart
2016- Chevrolet Malibu 122 kW (163 hp) @ 5700 rpm250 N⋅m (184 lb⋅ft) @ 2000-4000 rpm dyno chart
2016- Buick LaCrosse 126 kW (169 hp) @ 5600 rpm250 N⋅m (184 lb⋅ft) @ 1700–4000 rpm
2016- Buick Envision 126 kW (169 hp) @ 5600 rpm250 N⋅m (184 lb⋅ft) @ 1700-4000 rpm dyno chart
2018- MG HS 121 kW (162 hp) @ 5600 rpm250 N⋅m (184 lb⋅ft) @ 1700–4400 rpm


The LYX is a direct-injection cast aluminum DOHC 1.5 L turbocharged SGE variant, with a 74 mm × 86.6 mm (2.91 in × 3.41 in) bore and stroke for a total capacity of 1,490 cc (1.5 L). Compression ratio is 10.0:1 and uses regular unleaded gasoline.

Year(s)ModelPowerTorqueDyno Chart
2018- MG HS FFV 121 kW (162 hp) @ 5600 rpm250 N⋅m (184 lb⋅ft) @ 1700–4400 rpm
2020- MG HS PHEV 212 kW (284 hp) @ 5500 rpm480 N⋅m (354 lb⋅ft) @ 1700–4300 rpm
2018- Chevrolet Equinox 127 kW (170 hp) @ 5600 rpm275 N⋅m (203 lb⋅ft) @ 2000–4000 rpm
2018- GMC Terrain 127 kW (170 hp) @ 5600 rpm275 N⋅m (203 lb⋅ft) @ 2000–4000 rpm

Opel Variants

Variant# cylinderBore x strokeDisplacementAspirationCompression RatioPower outputTorqueApplicationsYears of
B10XEInline-374 mm × 77.7 mm (2.91 in × 3.06 in)999 cc (1.0 L) Naturally aspirated
Indirect injection
10.5:156 kW (75 hp)
@ 6500 rpm
96 N⋅m (71 lb⋅ft)
@ 4500 rpm
Opel Karl from 03/2015
B10XFL74 mm × 77.4 mm (2.91 in × 3.05 in)Direct Injection
67 kW (90 hp)
@ 3700-6000 rpm
170 N⋅m (125 lb⋅ft)
@ 1800-3700 rpm
Opel Adam 1.0 SGEfrom 11/2014
Opel Corsa E 1.0 SGE Turbo from 11/2014
78 kW (105 hp)
@ 5000 rpm
170 N⋅m (125 lb⋅ft)
@ 1800-4250 rpm
Opel Astra K 1.0 Turbo from 07/2015
B10XFT86 kW (115 hp)
@ 5000-6000 rpm
170 N⋅m (125 lb⋅ft)
@ 1800-4500 rpm
Opel Adam 1.0 SGEfrom 11/2014
Opel Corsa E 1.0 SGE Turbo (115 CV)from 11/2014
B14XEInline-474 mm × 81.3 mm (2.91 in × 3.20 in)1,399 cc (1.4 L)Naturally aspirated
Indirect Injection
10.6:175 kW (101 hp)
@ 6000 rpm
130 N⋅m (96 lb⋅ft)
@ 4000 rpm
Opel Astra K 1.4 16vfrom 07/2015
B14XFLDirect Injection
10.0:193 kW (125 hp)
@ 4000-5600 rpm
245 N⋅m (181 lb⋅ft)
@ 2000-3500 rpm
Opel Astra K 1.4 Turbo from 07/2015
B14XFT112 kW (150 hp)
@ 5000-5600 rpm
Opel Astra K 1.4 Turbo from 07/2015

See also

Related Research Articles

The GM Ecotec engine, also known by its codename L850, is a family of all-aluminium inline-four engines, displacing between 1.4 and 2.5 litres. While these engines were based on the GM Family II engine, the architecture was substantially re-engineered for the new Ecotec application produced since 2000. This engine family replaced the GM Family II engine, the GM 122 engine, the Saab H engine, and the Quad 4 engine. It is manufactured in multiple locations, to include Spring Hill Manufacturing, in Spring Hill, Tennessee while the engine block and cylinder heads are cast at Saginaw Metal Casting Operations in Saginaw, Michigan.

General Motors LS-based small-block engine V8 automobile engine made by General Motors

The LS based small-block engine is the primary V-8 used in General Motors' line of rear-wheel-drive cars and trucks. Introduced in January 1995, it is a "clean sheet" design with only rod bearings, lifters, and bore spacing in common with the longstanding Chevrolet small-block V-8 that preceded it as the basis for GM small-block V-8s. The basic LS variations use cast iron blocks, while performance editions are all aluminum with cast iron cylinder liners. The engine block and cylinder heads are cast at Saginaw Metal Casting Operations in Saginaw, Michigan.

General Motors 60° V6 engine Motor vehicle engine

The General Motors 60° V6 engine family was a series of 60° V6 engines which were produced for both longitudinal and transverse applications. All of these engines are 12-valve cam-in-block or overhead valve engines, except for the LQ1; which uses 24 valves driven by dual overhead cams. These engines vary in displacement between 2.5 and 3.4 litres and have a cast-iron block and either cast-iron or aluminum heads. Production of these engines began in 1980 and ended in 2005 in the U.S., with production continued in China until 2010. This engine family was the basis for the GM High Value engine family. These engines have also been referred to as the X engines due to their first usage in the X-body cars.

GM High Feature engine Motor vehicle engine

The GM High Feature engine is a family of modern General Motors DOHC V6 engines. The series was introduced in 2004 with the Cadillac CTS and the Holden Commodore (VZ).

Buick V6 engine Motor vehicle engine

The Buick V6, popularly referred to as the 3800 in its later incarnations, originally 198 cu in (3.2 L) and initially marketed as Fireball at its introduction in 1962, was a large V6 engine used by General Motors. The block is made of cast iron and all use two-valve-per-cylinder iron heads, actuated by pushrods. The engine, originally designed and manufactured in the United States, was also produced in later versions in Australia. It was the first six-cylinder engine designed exclusively for Buick products since the Buick straight-six was discontinued in 1930.

Quad 4 engine Motor vehicle engine

The Quad 4s is a family of principally DOHC inline four-cylinder engines produced by General Motors' Oldsmobile division between 1987 and 2002; a single SOHC version was built between 1992 and 1994.

General Motors 54° V6 engine Motor vehicle engine

General Motors' Opel subsidiary in Europe designed a compact V6 engine with an unusual 54° vee angle. It was an iron block/aluminum head DOHC design with 4 valves per cylinder. All 54° engines were assembled at Ellesmere Port in England.

Mitsubishi Sirius engine Motor vehicle engine

The Mitsubishi Sirius or 4G6/4D6 engine is the name of one of Mitsubishi Motors' four series of inline-four automobile engines, along with Astron, Orion, and Saturn.

Mitsubishi 4G9 engine Motor vehicle engine

The Mitsubishi 4G9 engine is a series of straight-4 automobile engines produced by Mitsubishi Motors. All are 16-valve, and use both single- and double- overhead camshaft heads. Some feature MIVEC variable valve timing, and it was the first modern gasoline direct injection engine upon its introduction in August 1996.

The Family 1 is a straight-four piston engine that was developed by Opel, a former subsidiary of General Motors and now a subsidiary of PSA Group, to replace the Opel cam-in-head engines for use on mid-range cars from Opel/Vauxhall. Originally produced at the Aspern engine plant, production was moved to the Szentgotthard engine plant in Hungary with the introduction of the DOHC version. GM do Brasil at São José dos Campos, GMDAT at Bupyeong and GM North America at Toluca also build these engines.

GM Family 0 engine Motor vehicle engine

The Family 0 is a family of inline piston engines that was developed by Opel, at the time a subsidiary of General Motors, as a low-displacement engine for use on entry-level subcompact cars from Opel/Vauxhall.

PSA XU engine Motor vehicle engine

The PSA XU is a family of internal combustion engines used in Citroën and Peugeot automobiles. It became the dominant mid-size engine in Peugeot and Citroën products through the 1980s and 1990s.

General Motors introduced a line of Diesel V8 engines for their C/K pickup trucks in 1982. This engine family was produced by GM through 2000, when it was replaced by the new Duramax line. AM General's subsidiary General Engine Products (GEP) still produces a military variant of this engine for the HMMWV.

The Family II is a straight-4 piston engine that was originally developed by Opel in the 1970s, debuting in 1979. Available in a wide range of cubic capacities ranging from 1598 to 2405cc, it simultaneously replaced the Opel OHV, Opel CIH and Vauxhall Slant-4 engines, and was GM Europe's core powerplant design for much of the 1980s.

The Tau is a family of gasoline V8 engines produced by the Hyundai Motor Company. It replaced the Omega engine line.

GM Medium Gasoline Engine Medium-displacement 4-cylinder gasoline engine

Medium Gasoline Engine (MGE) is a medium-displacement 4-cylinder gasoline engine developed by Opel Automobile GmbH and marketed as 'SIDI Ecotec'.

Opel cam-in-head engine Motor vehicle engine

The Opel cam-in-head engine (CIH) is a family of automobile engines built by former General Motors subsidiary Opel from 1965 until 1998. Both four- and six-cylinder inline configurations were produced. The name derives from the location of the camshaft, which was neither cam-in-block nor a true overhead camshaft. In the CIH engine the camshaft is located in the cylinder head but sits alongside the valves rather than above them. The overhead valves are actuated through very short tappets and rocker arms. The four-cylinder CIH was largely supplanted by the Family II unit as Opel/Vauxhall's core mid-size engine in the 1980s. A four-cylinder version of the CIH remained in limited production until 1998, and six-cylinder versions of the CIH until 1995.

GM Medium Diesel engine Motor vehicle engine

The Medium Diesel Engine (MDE) is a four-cylinder diesel engine developed by Adam Opel AG and branded "1.6 CDTI Ecotec" in most markets. Opel also adds the marketing term "Whisper Diesel" in some markets, claiming relatively low levels of noise, vibration, and harshness. Production commenced in late 2013 at Szentgotthárd, Hungary. The MDE is Opel's first all-aluminum diesel engine and offers a power density of 85 hp (63 kW) per liter 136 PS in its most powerful version. Maximum power and torque have been increased versus the previous-generation 1.7-liter engine, while fuel consumption has been reduced by up to 10 percent compared with a 2.0-liter CDTI engine of similar power output. This new 1.6 CDTI engine will replace the current 1.7-liter and lower-powered 2.0-liter diesel engines in a wide range of Opel models, with more- and less-powerful versions to come. The most powerful version of this engine, delivering 136 PS at 3,500–4,000 rpm and 320 N⋅m (236 lb⋅ft) at 2,000 rpm, was first introduced in the 2013 Opel Zafira Tourer, and later in the 2014 Opel Astra J and restyled 2014 Opel Meriva B. In 2014, versions were released with power outputs of 110 and 95 PS.


  1. "Future Chevrolets to Benefit from Small Gas Engine Family". October 12, 2011. Retrieved May 29, 2012.
  2. 1 2 3 4 "General Motors Details New Modular I-3, I-4 Engines"
  3. "Home | Media OPEL International". Retrieved September 13, 2019.
  4. "Opel Expands Engine Production in Szentgotthárd, Hungary". September 21, 2010. Retrieved May 29, 2012.
  5. Autonews: New Opel minicar set to debut small engine co-developed with China's SAIC
  6. 1 2 Loveday, Eric. "Official: 2016 Chevy Volt To Get 1.5-Liter, 4-Cylinder Range Extender". Inside EVs. Retrieved October 28, 2014.
  7. "This is the MG GT for the Chinese car market". October 6, 2014. Retrieved September 13, 2019.
  8. "Buick Introduces 2016 Encore Sport Touring". July 20, 2015. Retrieved September 13, 2019.
  9. (PDF). GM Powertrain . Retrieved January 27, 2020.Missing or empty |title= (help)