Small Gasoline Engine
Overview
Manufacturer
Also calledMicrotec
Production2013 (2013)–present
Layout
Configuration
Displacement
  • 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 bore74 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)
Cylinder block materialAluminium
Cylinder head materialAluminium
ValvetrainDOHC 4 valves x cyl.
Valvetrain drive systemChain
Compression ratio10.0:1 - 12.5:1
RPM range
Max. engine speed6500
Combustion
TurbochargerMitsubishi Heavy Industries one-stage single-scroll (some versions)
Fuel system
Fuel type
Oil systemWet sump
Cooling systemWater cooled
Output
Power output55–130 kW (74–175 hp; 75–177 PS)
Torque output95–275 N⋅m (70–203 lb⋅ft)
Dimensions
Dry weight98 kg (216 lb)
Chronology
Predecessor
SuccessorGM 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 uses a modular approach with interchangeable components that can be suited to specific application.

The initial engine variants include

  • 999 cc (1.0 L; 61.0 cu in) I3 DI DCVCP turbo 77.4 mm (3.05 in) stroke,
  • 1,118 cc (1.1 L; 68.2 cu in) I3 PFI 86.6 mm (3.41 in) stroke,
  • 1,399 cc (1.4 L; 85.4 cu in) I4 DI DCVCP turbo 81.3 mm (3.20 in) stroke and
  • 1,490 cc (1.5 L; 90.9 cu in) I4 PFI 86.6 mm (3.41 in) stroke. All are derived from just two blocks (three and four cylinder) sharing a common 74 mm (2.91 in) bore with 81 mm (3.19 in) bore spacing. Mitsubishi Heavy Industries provides one-stage single-scroll turbocharger.[2]

To reduce NVH (Noise, vibration, and harshness) levels the direct injection fuel rail mounts to the cylinder head and valve cover via bushings that isolate the loud ticking noise that 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 and a stiffened aluminum front cam cover. Three-cylinder variants get a balance shaft that is integrated with the oil pump and located inside the two-piece aluminum oil pan to prevent radiated noise. The shaft counter-rotates at engine speed. GM claims that 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 maximum torque between 1500 and 5000 rpm, with peak power arriving between 5600 and 6000 rpm. The MHI turbochargers 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

1.4

LV7

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) Model Power Torque Dyno Chart
2016-2022 Chevrolet Spark73 kW (98 hp) at 6200 rpm128 N⋅m (94 lb⋅ft) at 4400 rpmdyno chart

LE2

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) Model Power Torque Dyno Chart
2016 Buick Encore Sport Touring114 kW (153 hp) at 5600 rpm240 N⋅m (177 lb⋅ft) at 2000-4000 rpm
2017-2019 Buick Encore (Optional)114 kW (153 hp) at 5600 rpm240 N⋅m (177 lb⋅ft) at 2000-4000 rpm
2021-2022 Buick Encore116 kW (155 hp) at 5600 rpm240 N⋅m (177 lb⋅ft) at 2000-4000 rpm
2016- Chevrolet Cruze114 kW (153 hp) at 5600 rpm240 N⋅m (177 lb⋅ft) at 2000-4000 rpmdyno chart
2021-2022 Chevrolet Trax116 kW (155 hp) at 5600 rpm240 N⋅m (177 lb⋅ft) at 2000-4000 rpm

1.5

L3A

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). The compression ratio is 12.5:1 and the engine can run on regular unleaded grade gasoline. Maximum engine speed is 6000 rpm.

Year(s) Model Power Torque Dyno Chart
2016-2019 Chevrolet Volt75 kW (100 hp) at 5600 rpm140 N⋅m (103 lb⋅ft) at 4300 rpm
2017–2019 Buick Velite 579 kW (106 hp) at 5800 rpm138 N⋅m (102 lb⋅ft) at 4400 rpm
2020- MG 584 kW (112 hp) at 6000 rpm150 N⋅m (111 lb⋅ft) at 4500 rpm

LFV

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) Model Power Torque Dyno Chart
2016- Chevrolet Malibu122 kW (163 hp) at 5700 rpm250 N⋅m (184 lb⋅ft) at 2000-4000 rpmdyno chart
2016- Buick LaCrosse126 kW (169 hp) at 5600 rpm250 N⋅m (184 lb⋅ft) at 1700–4000 rpm
2016-2021 Buick Envision126 kW (169 hp) at 5600 rpm250 N⋅m (184 lb⋅ft) at 1700-4000 rpmdyno chart
2018- MG HS121 kW (162 hp) at 5600 rpm250 N⋅m (184 lb⋅ft) at 1700–4400 rpm
2020- MG 5 LE128 kW (171 hp) at 5600 rpm275 N⋅m (203 lb⋅ft) at 1750-4000 rpm
2021- MG 6 PRO135 kW (181 hp) at 5600 rpm285 N⋅m (210 lb⋅ft) at 1500–4000 rpm
2022- MG 5 Scorpio Edition135 kW (181 hp) at 5600 rpm285 N⋅m (210 lb⋅ft) at 1500–4000 rpm

LYX

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) Model Power Torque Dyno Chart
2018- MG HS FFV121 kW (162 hp) at 5600 rpm250 N⋅m (184 lb⋅ft) at 1700–4400 rpm
2020- MG HS PHEV212 kW (284 hp) at 5500 rpm480 N⋅m (354 lb⋅ft) at 1700–4300 rpm
2018-2022 Chevrolet Equinox127 kW (170 hp) at 5600 rpm275 N⋅m (203 lb⋅ft) at 2000–4000 rpm
2018-2022 GMC Terrain127 kW (170 hp) at 5600 rpm275 N⋅m (203 lb⋅ft) at 2000–4000 rpm

LSD

The LSD 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. This variant has a higher pressure fuel system than the LYX, increasing to 35 MPa from 20 MPa.

Year(s) Model Power Torque Dyno Chart
2023- Chevrolet Equinox130 kW (175 hp) at 5600 rpm275 N⋅m (203 lb⋅ft) at 2000–4000 rpm
2023- GMC Terrain130 kW (175 hp) at 5600 rpm275 N⋅m (203 lb⋅ft) at 2000–4000 rpm

Opel Variants

Variant # cylinder Bore x stroke Displacement Aspiration Compression Ratio Power output Torque Applications Years of
production
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)
at 6500 rpm		96 N⋅m (71 lb⋅ft)
at 4500 rpm		Opel Karlfrom 03/2015
B10XFL74 mm × 77.4 mm (2.91 in × 3.05 in)Direct Injection
turbo		67 kW (90 hp)
at 3700-6000 rpm		170 N⋅m (125 lb⋅ft)
at 1800-3700 rpm		Opel Adam 1.0 SGEfrom 11/2014
Opel Corsa E 1.0 SGE Turbofrom 11/2014
78 kW (105 hp)
at 5000 rpm		170 N⋅m (125 lb⋅ft)
at 1800-4250 rpm		Opel Astra K 1.0 Turbofrom 07/2015
B10XFT86 kW (115 hp)
at 5000-6000 rpm		170 N⋅m (125 lb⋅ft)
at 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)
at 6000 rpm		130 N⋅m (96 lb⋅ft)
at 4000 rpm		Opel Astra K 1.4 16vfrom 07/2015
B14XFLDirect Injection
turbo		10.0:193 kW (125 hp)
at 4000-5600 rpm		245 N⋅m (181 lb⋅ft)
at 2000-3500 rpm		Opel Astra K 1.4 Turbo from 07/2015
B14XFT112 kW (150 hp)
at 5000-5600 rpm		Opel Astra K 1.4 Turbo from 07/2015
B15XFL 74 mm x 86.6 (2.91 in x 3.41 in) 1490 cc (1.5 L) 10.1:1 103 kW (140 hp)

at 5600 rpm

 250 Nm (184 lbft)

at 2000-4100 rpm

 Opel Insignia B 1.5 Turbo from 06/2017
B15XFT 121 kW (165 hp)

at 5600 rpm

 250 Nm (184 lbft)

at 2000-4500 rpm

 Opel Insignia B 1.5 Turbo from 06/2017

See also

References

  1. ↑ "Future Chevrolets to Benefit from Small Gas Engine Family". Media.gm.com. 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". Media.opel.com. Retrieved September 13, 2019.
  4. ↑ "Opel Expands Engine Production in Szentgotthárd, Hungary". Media.gm.com. 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". CarNewsChina.com. October 6, 2014. Retrieved September 13, 2019.
  8. ↑ "Buick Introduces 2016 Encore Sport Touring". Media.gm.com. July 20, 2015. Retrieved September 13, 2019.
  9. ↑ "GM Engine Original Equipment Manufacturer | GM Powertrain" (PDF). GM Powertrain. Retrieved January 27, 2020.
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