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]
| Small Gasoline Engine | |
|---|---|
 | |
| Overview | |
| Manufacturer | |
| Also called | Microtec |
| Production | 2013–present |
| Layout | |
| Configuration | |
| Displacement |
|
| Cylinder bore | 74 mm (2.91 in) |
| Piston stroke |
|
| Cylinder block material | Aluminium |
| Cylinder head material | Aluminium |
| Valvetrain | DOHC 4 valves x cyl. |
| Valvetrain drive system | Chain |
| Compression ratio | 10.0:1 - 12.5:1 |
| RPM range | |
| Max. engine speed | 6500 |
| Combustion | |
| Turbocharger | Mitsubishi Heavy Industries one-stage single-scroll (some versions) |
| Fuel system | |
| Fuel type | |
| Oil system | Wet sump |
| Cooling system | Water cooled |
| Output | |
| Power output | 55–130 kW (74–175 hp; 75–177 PS) |
| Torque output | 95–275 N⋅m (70–203 lb⋅ft) |
| Dimensions | |
| Dry weight | 98 kg (216 lb) [specify] |
| Chronology | |
| Predecessor | |
| Successor | GM E-Turbo engine (1.4 Version) |
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:
- 2014 Opel Adam
- 2014 MG GT[7]
- 2014 Opel Corsa E
- 2014 Roewe 360
- 2015 MG GS
- 2016 Buick Encore Sport Touring[8]
- 2015-16 Chevrolet Cruze
- 2016 Chevrolet Malibu
- 2016 Chevrolet Volt[6]
- 2016 Chevrolet Spark[9]
- 2016 Buick Envision
- 2016 Roewe e950 plug-in hybrid
- 2016 Roewe RX5
- 2017 Roewe i6
- 2017 MG 6
- 2017 Roewe i5
- 2018 Chevrolet Equinox
- 2018 MG HS
- 2018 MG ZS
The assembly lines for North American facilities were manufactured by Hirata Corporation at their powertrain facility in Kumamoto, Japan.
Non-Opel Variants
edit1.4
editLV7
editThe 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 Spark | 73 kW (98 hp) at 6200 rpm | 128 N⋅m (94 lb⋅ft) at 4400 rpm | dyno chart |
LE2
edit
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 Touring | 114 kW (153 hp) at 5600 rpm | 240 N⋅m (177 lb⋅ft) at 2000-4000 rpm | |
| 2017-2019 | Buick Encore (Optional) | 114 kW (153 hp) at 5600 rpm | 240 N⋅m (177 lb⋅ft) at 2000-4000 rpm | |
| 2021-2022 | Buick Encore | 116 kW (155 hp) at 5600 rpm | 240 N⋅m (177 lb⋅ft) at 2000-4000 rpm | |
| 2016- | Chevrolet Cruze | 114 kW (153 hp) at 5600 rpm | 240 N⋅m (177 lb⋅ft) at 2000-4000 rpm | dyno chart |
| 2021-2022 | Chevrolet Trax | 116 kW (155 hp) at 5600 rpm | 240 N⋅m (177 lb⋅ft) at 2000-4000 rpm |
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1.5
editL3A
editThe 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 Volt | 75 kW (100 hp) at 5600 rpm | 140 N⋅m (103 lb⋅ft) at 4300 rpm | |
| 2017–2019 | Buick Velite 5 | 79 kW (106 hp) at 5800 rpm | 138 N⋅m (102 lb⋅ft) at 4400 rpm | |
| 2020- | MG 5 | 84 kW (112 hp) at 6000 rpm | 150 N⋅m (111 lb⋅ft) at 4500 rpm |
LFV
editThe 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 Malibu | 122 kW (163 hp) at 5700 rpm | 250 N⋅m (184 lb⋅ft) at 2000-4000 rpm | dyno chart |
| 2016- | Buick LaCrosse | 126 kW (169 hp) at 5600 rpm | 250 N⋅m (184 lb⋅ft) at 1700–4000 rpm | |
| 2016-2021 | Buick Envision | 126 kW (169 hp) at 5600 rpm | 250 N⋅m (184 lb⋅ft) at 1700-4000 rpm | dyno chart |
| 2018- | MG HS | 121 kW (162 hp) at 5600 rpm | 250 N⋅m (184 lb⋅ft) at 1700–4400 rpm | |
| 2020- | MG 5 LE | 128 kW (171 hp) at 5600 rpm | 275 N⋅m (203 lb⋅ft) at 1750-4000 rpm | |
| 2021- | MG 6 PRO | 135 kW (181 hp) at 5600 rpm | 285 N⋅m (210 lb⋅ft) at 1500–4000 rpm | |
| 2022- | MG 5 Scorpio Edition | 135 kW (181 hp) at 5600 rpm | 285 N⋅m (210 lb⋅ft) at 1500–4000 rpm |
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LYX
editThe 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 FFV | 121 kW (162 hp) at 5600 rpm | 250 N⋅m (184 lb⋅ft) at 1700–4400 rpm | |
| 2020- | MG HS PHEV | 212 kW (284 hp) at 5500 rpm | 480 N⋅m (354 lb⋅ft) at 1700–4300 rpm | |
| 2018-2022 | Chevrolet Equinox | 127 kW (170 hp) at 5600 rpm | 275 N⋅m (203 lb⋅ft) at 2000–4000 rpm | |
| 2018-2022 | GMC Terrain | 127 kW (170 hp) at 5600 rpm | 275 N⋅m (203 lb⋅ft) at 2000–4000 rpm |
LSD
editThe 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 Equinox | 130 kW (175 hp) at 5600 rpm | 275 N⋅m (203 lb⋅ft) at 2000–4000 rpm | |
| 2023- | GMC Terrain | 130 kW (175 hp) at 5600 rpm | 275 N⋅m (203 lb⋅ft) at 2000–4000 rpm |
Opel Variants
edit| Variant | # cylinder | Bore x stroke | Displacement | Aspiration | Compression Ratio | Power output | Torque | Applications | Years of production |
|---|---|---|---|---|---|---|---|---|---|
| B10XE | Inline-3 | 74 mm × 77.7 mm (2.91 in × 3.06 in) | 999 cc (1.0 L) | Naturally aspirated Indirect injection | 10.5:1 | 56 kW (75 hp) at 6500 rpm | 96 N⋅m (71 lb⋅ft) at 4500 rpm | Opel Karl | from 03/2015 |
| B10XFL | 74 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 SGE | from 11/2014 | |||
| Opel Corsa E 1.0 SGE Turbo | from 11/2014 | ||||||||
| 78 kW (105 hp) at 5000 rpm | 170 N⋅m (125 lb⋅ft) at 1800-4250 rpm | Opel Astra K 1.0 Turbo | from 07/2015 | ||||||
| B10XFT | 86 kW (115 hp) at 5000-6000 rpm | 170 N⋅m (125 lb⋅ft) at 1800-4500 rpm | Opel Adam 1.0 SGE | from 11/2014 | |||||
| Opel Corsa E 1.0 SGE Turbo (115 CV) | from 11/2014 | ||||||||
| B14XE | Inline-4 | 74 mm × 81.3 mm (2.91 in × 3.20 in) | 1,399 cc (1.4 L) | Naturally aspirated Indirect Injection | 10.6:1 | 75 kW (101 hp) at 6000 rpm | 130 N⋅m (96 lb⋅ft) at 4000 rpm | Opel Astra K 1.4 16v | from 07/2015 |
| B14XFL | Direct Injection turbo | 10.0:1 | 93 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 | |||
| B14XFT | 112 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
editReferences
edit- ^ "Future Chevrolets to Benefit from Small Gas Engine Family". Media.gm.com. October 12, 2011. Retrieved May 29, 2012.
- ^ a b c d "General Motors Details New Modular I-3, I-4 Engines"
- ^ "Home | Media OPEL International". Media.opel.com. Retrieved September 13, 2019.
- ^ "Opel Expands Engine Production in Szentgotthárd, Hungary". Media.gm.com. September 21, 2010. Retrieved May 29, 2012.
- ^ Autonews: New Opel minicar set to debut small engine co-developed with China's SAIC[permanent dead link]
- ^ a b Loveday, Eric. "Official: 2016 Chevy Volt To Get 1.5-Liter, 4-Cylinder Range Extender". Inside EVs. Retrieved October 28, 2014.
- ^ "This is the MG GT for the Chinese car market". CarNewsChina.com. October 6, 2014. Retrieved September 13, 2019.
- ^ "Buick Introduces 2016 Encore Sport Touring". Media.gm.com. July 20, 2015. Retrieved September 13, 2019.
- ^ "GM Engine Original Equipment Manufacturer | GM Powertrain" (PDF). GM Powertrain. Retrieved January 27, 2020.
External links
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