Jump to content

GM Ecotec engine

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Noxious89123 (talk | contribs) at 23:13, 24 October 2023 (Correct power output figure for Opel Speedster. The 200bhp figure was for a different engine.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

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. Confusingly, the Ecotec name was also applied to the final DOHC derivatives of the previous GM Family II engine, the architecture was substantially re-engineered for this 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.

Generation I

Generation I
Overview
Production1999–2012
Layout
Displacement
  • 2.0 L (1,998 cc)
  • 2.2 L (2,198 cc)
Cylinder bore86 mm (3.4 in)
Piston stroke
  • 86 mm (3.4 in)
  • 94.6 mm (3.72 in)
Compression ratio
  • 8.8:1
  • 9.5:1
  • 10.0:1
Combustion
Fuel system
Fuel type
Dimensions
Length665 mm (26.2 in)
Width642 mm (25.3 in)
Height655 mm (25.8 in)
Dry weight139–150 kg (306–331 lb)[1]

The 'Ecotec' name was adopted in 1994 for the new generation of Family II engines (2000 in North America) . The name was already used for the Opel GM Family II engine, Family 1 and Family 0 ranges. GM intended this new Ecotec to become its global 4-cylinder, and it has already fully replaced their OHV I4 line.

The Ecotec engine is a DOHC 4-valve design with a lost foam cast aluminum block and head (L850 for 86 mm bore applications, and L880 for 88 mm bore[citation needed]), designed for displacements from 1.8 to 2.4 L. Development began in 1994, by an international team of engineers and technicians from Opel's International Technical Development Center in Rüsselsheim, Germany, GM Powertrain in Pontiac, Michigan, and Saab in Södertälje, Sweden.[2] Much of the development work on this project was carried out by Lotus Engineering, Hethel, United Kingdom. The engine uses aluminium pistons and cast iron cylinder liners. Vibration is reduced with twin balance shafts.

The first engine in the Ecotec Gen I line-up was Ecotec 2.2 L61, introduced in May 1999.

The current Ecotec line is manufactured in Tonawanda, New York.[2]

2.0

LK9

Saab B207 engine in a 2008 Saab 9-3 2.0T

This engine is also known as B207 when used by Saab and Z20NET by Opel for use in the Vectra C and Signum.

LK9 is a turbocharged 2.0 L (1,998 cc) version of the L850 (86 mm bore) series Ecotec utilizing an all-new reinforced sand cast aluminum cylinder head and upgraded internal components. The engine features a five-bearing forged steel crankshaft, strengthened connecting rods, redesigned pistons, piston oil cooling jets, reprofiled camshafts and an integrated oil cooler.[3] The exhaust valves are liquid sodium-cooled. All vehicles using this engine feature Saab's Trionic 8 (T8) engine management system as well as a revised valve train. The timing chain and timing gears are also new, along with Saab's Direct Ignition system. The reinforcements, turbocharging, intercooling, internals, dual overhead camshaft, and such were developed by GM Powertrain Sweden (Saab Automobile Powertrain). It features an 86 mm (3.4 in) bore and stroke and a 9.5:1 compression ratio. Maximum power is 210 hp (160 kW) at 5300 rpm and 221 ft⋅lb (300 N⋅m) of torque at 2500 rpm. Maximum boost is 12.3 psi (0.85 bar).

Model Years Power Torque Turbocharger Boost Pressure
1.8t (B207E) 2003–2006 148 hp (110 kW) @ 5500 rpm 177 ft⋅lb (240 N⋅m) @ 2000–3500 rpm
7.3 psi (0.50 bar)
1.8t (B207E) 2006–2012 148 hp (110 kW) @ 5500 rpm 177 ft⋅lb (240 N⋅m) @ 2000–3500 rpm
  • Low-pressure
  • (MHI TD04-11TK)
 7.3 psi (0.50 bar)
2.0t (B207L) 2003–2006 173 hp (129 kW) @ 5500 rpm 195 ft⋅lb (265 N⋅m) @ 2500–4000 rpm
8.7 psi (0.60 bar)
2.0t (B207L) 2006–2012 173 hp (129 kW) @ 5500 rpm 195 ft⋅lb (265 N⋅m) @ 2500–4000 rpm
  • Mid-pressure
  • (MHI TD04-11TK)
 8.7 psi (0.60 bar)
2.0T (B207R) 2003–2014 207 hp (154.5 kW) @ 5300 rpm 221 ft⋅lb (300 N⋅m) @ 2500–4000 rpm
  • High-pressure
  • (MHI TD04-14T)
 12.3 psi (0.85 bar)

LSJ

Ecotec LSJ engine in a 2006 Saturn Ion Red Line

The LSJ is a supercharged version of the LK9 Ecotec 2.0 L (1,998 cc) with an Eaton M62 Roots-type supercharger and air-to-liquid intercooler. The LSJ shares many of its components with the LK9 such as: piston cooling jets, oil cooler, pistons, connecting rods, crankshaft, oil pan, sodium-filled exhaust valves and cylinder head.[4] It is rated at 205 hp (153 kW) at 5600 rpm and 200 ft⋅lb (271 N⋅m) at 4400 rpm with a compression ratio of 9.5:1 and a 6450 rpm redline. With the end of the Chevy Cobalt S/C SS and Saturn Ion Red Line, the LSJ was discontinued after 2007. In late 2005 Brammo Motorsports struck a deal with GM for the Supercharged 2.0 L Ecotec for their Ariel Atom. The engine came in various ratings from 205 hp (153 kW) to 300 hp (224 kW).

The LSJ was on the Ward's 10 Best Engines list for 2006.

This engine is used in:

Year(s) Model Power Torque Dyno chart
2004–2007 Saturn Ion Red Line 205 hp (153 kW) @ 5600 rpm 200 ft⋅lb (271 N⋅m) @ 4400 rpm link
2005–2007 Chevrolet Cobalt SS Supercharged Coupe 205 hp (153 kW) @ 5600 rpm 200 ft⋅lb (271 N⋅m) @ 4400 rpm link

2.2

L61

Ecotec L61 engine in a Chevrolet Classic (Malibu)
2003 Pontiac Sunfire Ecotec engine
Ecotec L61 installed in a 2003 Chevrolet Cavalier

This engine is also known as a Z22SE in other countries such as the United Kingdom, Australia, and Europe.

The basic Family II architecture was substantially re-engineered in 2000 to become the Ecotec Gen I. Unlike its notably harsh predecessor, the engine was designed for smoothness. Dual in-block balance shafts were integral to the design, the power-steering pump was mounted directly to the cylinder head and driven by the intake camshaft, the water-pump housing was cast into the block, and the A/C compressor and alternator were mounted directly on the block without brackets. The oil filter housing was cast into the block with a removable cover and replaceable paper element. It did not use an EGR valve. The Ecotec line is manufactured in Tonawanda, New York and Kaiserslautern, Germany, and was also manufactured for Saturn in Spring Hill, Tennessee until Saturn's discontinuation. In North America this engine replaced both the Quad-4 and the GM 122 engines and first appeared in the 2000 Saturn L-Series.[2]

The L61 is a 2.2 L (2,198 cc) version with a lost-foam cast aluminum cylinder head and block; it features an 86 mm (3.4 in) bore and 94.6 mm (3.72 in) stroke [2] and either a 9.5:1 compression ratio or a 10.0:1. The engine is 665 mm (26.2 in) in length, 642 mm (25.3 in) in width, 655 mm (25.8 in) in height and approximately 139 kg (306 lb).[2]

The Ecotec 2.2, model L61 first appeared in the 2000 Saturn LS1; the L61-powered Saturn Ion also replaced the Saturn-powered Saturn S-Series.

There are a few variations to the standard L61. The 2003 Saturn L-Series has a high output version with higher (10:1) compression and more aggressive camshaft. The 2004–2008 Chevrolet Malibu uses a version with electronic throttle control and a special unitized exhaust manifold and catalytic converter. The Malibu and Saturn versions also use return-less fuel injection. The 2002 Saturn VUE was the first North American variant of the L61 to be equipped with electronic throttle control, whereas other applications did not arise until 2005 in the Saturn ION and Chevrolet Cobalt. For 2007, introduced an updated version of the L61 based on the Gen II design.

The supercharger and inlet manifold from the 2.0 Ecotec LSJ engine can be purchased as an official kit from GM and along with modified software in the ECM, can create a 2.2 supercharged version of this engine.

The L61 was used in the following cars:

Year(s) Model Power Torque Compression ratio Dyno chart
2002 Chevrolet Cavalier 140 hp (104 kW) @ 5600 rpm 150 ft⋅lb (203 N⋅m) @ 4400 rpm 10.0:1
2003–2005 150 ft⋅lb (203 N⋅m) @ 4000 rpm link
2005–2006 Chevrolet Cobalt 145 hp (108 kW) @ 5600 rpm 155 ft⋅lb (210 N⋅m) @ 4000 rpm 10.0:1 link
2006 Chevrolet HHR 143 hp (107 kW) @ 5600 rpm 150 ft⋅lb (203 N⋅m) @ 4000 rpm 10.0:1
2004 Chevrolet Malibu 145 hp (108 kW) @ 5600 rpm 155 ft⋅lb (210 N⋅m) @ 4000 rpm 10.0:1
2005–2006 144 hp (107 kW) @ 5600 rpm link
2002–2004 Oldsmobile Alero 140 hp (104 kW) @ 5600 rpm 150 ft⋅lb (203 N⋅m) @ 4000 rpm 10.0:1
2002 Pontiac Grand Am 140 hp (104 kW) @ 5600 rpm 150 ft⋅lb (203 N⋅m) @ 4400 rpm 10.0:1
2003–2005 150 ft⋅lb (203 N⋅m) @ 4000 rpm link
2002 Pontiac Sunfire 140 hp (104 kW) @ 5600 rpm 150 ft⋅lb (203 N⋅m) @ 4400 rpm 10.0:1
2003–2005 150 ft⋅lb (203 N⋅m) @ 4000 rpm link
2005–2006 Pontiac Pursuit/G5 145 hp (108 kW) @ 5600 rpm 155 ft⋅lb (210 N⋅m) @ 4000 rpm 10.0:1
2000 Saturn L-Series 137 hp (102 kW) @ 5800 rpm 135 ft⋅lb (183 N⋅m) @ 4400 rpm 9.5:1
2001–2003 135 hp (101 kW) @ 5200 rpm 142 ft⋅lb (193 N⋅m) @ 4400 rpm
2004 140 hp (104 kW) @ 5600 rpm 150 ft⋅lb (203 N⋅m) @ 4000 rpm
2003–2006 Saturn Ion 140 hp (104 kW) @ 5800 rpm 145 ft⋅lb (197 N⋅m) @ 4400 rpm 10.0:1 link
2002–2005 Saturn Vue 143 hp (107 kW) @ 5400 rpm 152 ft⋅lb (206 N⋅m) @ 4000 rpm 10.0:1 link
2006 143 hp (107 kW) @ 5600 rpm
2007 144 hp (107 kW) @ 5600 rpm
2001–2005 Opel Speedster / Vauxhall VX220[2] 147 hp (110 kW) @ 5800 rpm 150 ft⋅lb (203 N⋅m) @ 4000 rpm
2000–2003 Opel / Vauxhall Astra[2] 147 hp (110 kW) @ 5800 rpm 150 ft⋅lb (203 N⋅m) @ 4000 rpm
2001–2002 Opel / Vauxhall Vectra[2] 147 hp (110 kW) @ 5800 rpm 150 ft⋅lb (203 N⋅m) @ 4000 rpm
2000–2003 Opel / Vauxhall Zafira[2] 147 hp (110 kW) @ 5800 rpm 150 ft⋅lb (203 N⋅m) @ 4000 rpm
2001–2006 Holden Astra (TS) 147 hp (110 kW) @ 5800 rpm 150 ft⋅lb (203 N⋅m) @ 4000 rpm

This engine also powered the Japanese-market Subaru Traviq, a badge-engineered Opel Zafira A.[5]

Following the GM-Fiat agreement, the 2.2 L engine is also used in

Z22YH

A direct injection version of the 2.2 L (2,198 cc) Ecotec features 153 hp (114 kW) of power at 5600 rpm and 162 lb⋅ft (220 N⋅m) of torque at 3800 rpm with a compression ratio of 12.0:1, and has been available in:

L42

The Ecotec 2.2, model L42 is the CNG version of the Ecotec 2.2. It delivers 129 hp (96 kW) and 129 ft⋅lb (175 N⋅m). Applications:

Generation II

Generation II
Overview
Production2006–present
Layout
Displacement
  • 2.0 L (1,998 cc)
  • 2.2 L (2,198 cc)
  • 2.4 L (2,384 cc)
Cylinder bore
  • 86 mm (3.4 in)
  • 88 mm (3.5 in)
Piston stroke
  • 86 mm (3.4 in)
  • 94.6 mm (3.72 in)
  • 98 mm (3.9 in)
Compression ratio
  • 9.2:1
  • 10.0:1
  • 10.4:1
  • 11.2:1
  • 11.4:1
Combustion
Fuel system
Fuel type

2.0 LNF (Z20NHH Opel)

Ecotec LNF in a Pontiac Solstice

A turbocharged direct injected (redubbed Spark Ignition Direct Injection) Ecotec was introduced in the 2007 Pontiac Solstice GXP and Saturn Sky Red Line. In these applications, the engine is mounted longitudinally. Displacement is 2.0 L (1,998 cc) with a square 86 mm (3.4 in) bore and stroke. Compression is 9.2:1 and maximum boost is 20 psi (1.4 bar), delivering 260 hp (190 kW) at 5300 rpm and 260 ft⋅lb (350 N⋅m) of torque from 2500 to 5250 rpm. Engine redline is at 6300 rpm and premium fuel is recommended. The sodium filled exhaust valves were based on technology developed for the Corvette V8 powertrains. The sodium fuses and becomes a liquid at idle, which improves conductivity and draws heat away from the valve face and valve guide towards the stem to be cooled by the engine oil circulating in this area. The camshaft-driven direct injection systems pressurizes the fuel to 450 psi (31 bar) at idle, and up to 2,250 psi (155 bar) at wide-open throttle. The "Gen II" block is similar to the 2.4 L and also features VVT technology. The Gen II block was developed using data from racing programs and computer simulations. The bore walls and bulkheads were strengthened with a weight increase of 2.5 lb (1.1 kg). The coolant jackets were expanded to improve heat transfer, resulting in a coolant capacity increase of 0.5 liters.

In December 2008, GM released a Turbo Upgrade Kit for the LNF engine which increases horsepower to 290 hp (220 kW) and torque to up to 340 ft⋅lb (460 N⋅m), depending on the model. The kit retailed for $650 and includes remapped engine calibration and upgraded 3 MAP sensors. The kit is covered by the cars' existing GM warranties.[6] Boost pressure was increased from 18psi (1.24 bar) to 21psi (1.44 bar).

Unique LNF features[7] include:

  • a twin-scroll turbocharger
  • cam-driven high-pressure gasoline direct injection fuel system
  • dual camshaft continuously variable valve timing
  • sodium-filled stainless steel Inconel exhaust valves
  • low-friction cast aluminum pistons with oil squirters
  • forged steel crankshaft
  • forged steel connecting rods
  • cast stainless steel exhaust manifold
  • foam cast gen2 block
  • bosch injectors 0 261 500 055 or slightly larger 0 261 500 089 injectors in 2010 models

This engine is used in:

Year(s) Model Power Torque
2007–2010 Opel GT 260 hp (194 kW) @ 5300 rpm 260 ft⋅lb (353 N⋅m) @ 2000 rpm
2007–2010 Pontiac Solstice GXP 260 hp (194 kW) @ 5300 rpm 260 ft⋅lb (353 N⋅m) @ 2000 rpm
2007–2010 Saturn Sky Red Line 260 hp (194 kW) @ 5300 rpm 260 ft⋅lb (353 N⋅m) @ 2000 rpm
2008–2010 Chevrolet HHR SS 260 hp (194 kW) @ 5300 rpm 260 ft⋅lb (353 N⋅m) @ 2000 rpm
2008–2010 Chevrolet Cobalt SS 260 hp (194 kW) @ 5300 rpm 260 ft⋅lb (353 N⋅m) @ 2000 rpm
2009 Elfin T5 264 hp (197 kW) @ 5300 rpm 259 ft⋅lb (351 N⋅m) @ 2000 rpm
2012 Fisker Karma 260 hp (194 kW) @ 5300 rpm 260 ft⋅lb (353 N⋅m) @ 2000 rpm

2.0 LDK (A20NHT Opel)

An updated variant of the LNF (also with 9.2:1 compression ratio) was released in 2008, meeting the Euro 5 emission standard. This engine is also known as A20NHT by GM Powertrain Europe.

Unique LDK features include:

This engine is used in:

Year(s) Model Power Torque
2008–2013 Opel Insignia / Vauxhall Insignia 217 hp (162 kW) @ 5300 rpm 258 ft⋅lb (350 N⋅m) @ 2500 rpm
2009–2010 Buick Regal Turbo 217 hp (162 kW) @ 5300 rpm 258 ft⋅lb (350 N⋅m) @ 2500 rpm
2010–2013 Buick Regal GS (China Market) 217 hp (162 kW) @ 5300 rpm 258 ft⋅lb (350 N⋅m) @ 2500 rpm
2009–2010 Buick Regal Turbo (Hirsch Performance) 257 hp (192 kW) @ 5400 rpm 295 ft⋅lb (400 N⋅m) @ 3000–4000 rpm
2010–2013 Buick Regal GS (Hirsch Performance) 257 hp (192 kW) @ 5400 rpm 295 ft⋅lb (400 N⋅m) @ 3000–4000 rpm
2010–2012 Saab 9-5 217 hp (162 kW) @ 5300 rpm 258 ft⋅lb (350 N⋅m) @ 2500 rpm
2011–2013 Cadillac SLS (China) 259 hp (193 kW) @ 5300 rpm 266 ft⋅lb (360 N⋅m) @ 2000–5000 rpm
2014–2017 Buick Regal GS (China Market) 251 hp (187 kW) @ 5300 rpm 258 ft⋅lb (350 N⋅m) @ 2000–5000 rpm

LHU (A20NFT Opel)

LHU adds E85 flex-fuel capability to the LDK. This engine is also known as A20NFT by GM Powertrain Europe. Maximum engine speed is listed at 6350 rpm.

Unique LHU features include:

  • a twin-scroll turbocharger
  • cam-driven high-pressure gasoline direct injection fuel system
  • dual camshaft continuously variable valve timing
  • sodium-filled stainless steel Inconel exhaust valves
  • low-friction cast aluminum pistons with oil squirters
  • forged steel crankshafts
  • cast stainless steel exhaust manifold
  • sand-cast gen3 block
  • larger bosch injectors 0 261 500 112 with ethanol safe seals due to flex fuel compatibility
Year(s) Model Power Torque Notes
2011–2013 Buick Regal Turbo 220 hp (164 kW) @ 5300 rpm 258 ft⋅lb (350 N⋅m) @ 2000 rpm
2011, 2013–2014 Saab 9-3 Turbo4 (NEVS) 220 hp (162 kW) @ 5300 rpm 258 ft⋅lb (350 N⋅m) @ 2500 rpm 451 built[8]
2011–2012 Saab 9-5 Turbo4 220 hp (162 kW) @ 5300 rpm 258 ft⋅lb (350 N⋅m) @ 2000 rpm
2013–2016 Buick Verano Turbo[9] 250 hp (186 kW) @ 5300 rpm 260 ft⋅lb (353 N⋅m) @ 2000 rpm link to Dyno Chart
2011–2013 Buick Regal GS 270 hp (201 kW)[10] 295 ft⋅lb (400 N⋅m) @ 2400 rpm
2011–2013 Opel Insignia / Vauxhall Insignia 4x4 247 hp (184 kW) @ 5300 rpm 295 ft⋅lb (400 N⋅m) @ 2400–3600 rpm
2012–2017 Opel Astra J OPC / Vauxhall Astra J VXR 276 hp (206 kW) @ 5500 rpm 295 ft⋅lb (400 N⋅m) @ 2500–4500 rpm
2014–2017 Buick Regal GS (Hirsch Performance) 275 hp (205 kW) @ 5400 rpm 302 ft⋅lb (410 N⋅m) @ 3000–4000 rpm
2017–present Opel Astra K TCR 345 hp (257 kW) @ 6300 rpm 310 ft⋅lb (420 N⋅m) @ 2500–4600 rpm

Note: The A20NFT engine in Opel Astra K TCR car had swapped the original direct fuel injection into multi-point fuel injection.

2.2

L61

In 2007, the L61 received a multitude of changes, that originated from the LE5. It switched to the higher-strength Gen II block and received a revised cylinder head (enlarged exhaust ports) and camshaft design (increased exhaust valve duration). The engine also switched from wasted spark ignition to individual coil-on-plug ignition; this forced the cam cover to be redesigned. It was also switched to an E37 engine controller with new crank and cam sensors (replacing timing sensor previously found in ignition cassette). These changes increase horsepower slightly and allow the engine to meet PZEV standards.[11] Compression ratio is 10.0:1.

The L61 was used in the following cars:

Year(s) Model Power Torque
2007–2008 Chevrolet Cobalt 148 hp (110 kW) @ 5600 rpm 152 ft⋅lb (206 N⋅m) @ 4200 rpm
2007 Chevrolet HHR 149 hp (111 kW) @ 5600 rpm 152 ft⋅lb (206 N⋅m) @ 4000 rpm
2008 152 ft⋅lb (206 N⋅m) @ 4200 rpm
2007–2008 Chevrolet Malibu 145 hp (108 kW) @ 5600 rpm 152 ft⋅lb (206 N⋅m) @ 4200 rpm
2007–2008 Pontiac Pursuit/G5 148 hp (110 kW) @ 5600 rpm 152 ft⋅lb (206 N⋅m) @ 4200 rpm
2007 Saturn Ion 145 hp (108 kW) @ 5600 rpm 150 ft⋅lb (203 N⋅m) @ 4200 rpm

LAP

The LAP is a 2.2 L (2,198 cc) version of the Ecotec, based on the Gen II block with cylinder head improvements, new camshaft design, E37 engine control module, 58X crankshaft reluctor ring, dual variable valve timing, digital crank and cam sensors, individual coil-on-plug ignition, vented starter solenoid, new MAP sensor, new intake manifold seals, new oil filter element, a 32-bit computer, and improved emissions performance.

Bore and stroke are 86 mm (3.4 in) and 94.6 mm (3.72 in), the same as the 2.2 L L61. Compression ratio is 10.0:1. Major features that set it apart from the 2.2 L L61 are variable-valve-timing and other cylinder head improvements from the 2.4 L LE5.

Year(s) Model Power Torque
2009–2010 Chevrolet Cobalt 155 hp (116 kW) @ 6100 rpm 150 ft⋅lb (203 N⋅m) @ 4900 rpm
2009 Pontiac G5 155 hp (116 kW) @ 6100 rpm 150 ft⋅lb (203 N⋅m) @ 4900 rpm

LE8

The LE8 is an E85 compatible 2.2 L (2,198 cc) version of the LAP Ecotec.[12] Bore and stroke remain the same 86 mm (3.4 in) and 94.6 mm (3.72 in). Compression ratio is 10.0:1 and the engine can run on both regular unleaded gasoline or E85.

Year(s) Model Power Torque
2009–2011 Chevrolet HHR 155 hp (116 kW) @ 6100 rpm (gasoline) 150 ft⋅lb (203 N⋅m) @ 4800 rpm (gasoline)
160 hp (119 kW) @ 6000 rpm (E85) 158 ft⋅lb (214 N⋅m) @ 4600 rpm (E85)

2.4

LE5

Ecotec LE5 engine in a 2006 Pontiac Solstice

The LE5 is a larger 2.4 L (2,384 cc) version of the Ecotec. Both the 88 mm (3.5 in) bore and 98 mm (3.9 in) stroke are larger, and Variable Valve Timing on the intake and exhaust improve low-end torque. Compression is 10.4:1. Power is 164–177 hp (123–132 kW) and torque is 159–170 lb·ft (215–230 N·m). The engine uses a reinforced "Gen II" block. Connecting Rods are GKN Forged. C70 Powdered Metal from July 2007 on.

Year(s) Model Power Torque
2006–2008 Buick Lacrosse (China) 168 hp (125 kW) @ 6400 rpm 166 ft⋅lb (225 N⋅m) @ 4800 rpm
2006–2007 Chevrolet Cobalt SS 173 hp (129 kW) @ 6200 rpm 163 ft⋅lb (221 N⋅m) @ 4800 rpm
2008 Chevrolet Cobalt Sport 171 hp (128 kW) @ 6200 rpm 167 ft⋅lb (226 N⋅m) @ 4800 rpm
2006–2008 Chevrolet HHR 175 hp (130 kW) 165 ft⋅lb (224 N⋅m)
2006–2008 Pontiac G5/Pursuit 171 hp (128 kW) @ 5800 rpm 167 ft⋅lb (226 N⋅m) @ 4500 rpm
2006–2009 Pontiac G6 169 hp (126 kW) @ 6300 rpm 162 ft⋅lb (220 N⋅m) @ 4500 rpm
2006–2009 Pontiac Solstice 173 hp (129 kW) @ 5800 rpm 164 ft⋅lb (222 N⋅m) @ 4500 rpm
2006–2009 Saturn Sky 177 hp (132 kW) @ 5800 rpm 173 ft⋅lb (235 N⋅m) @ 4800 rpm
2006 Saturn Ion 170 hp (127 kW) @ 6200 rpm 162 ft⋅lb (220 N⋅m) @ 4800 2,384rpm
2007 Saturn Ion 175 hp (130 kW) @ 6500 rpm 164 ft⋅lb (222 N⋅m) @ 4800 rpm
2008–2009 Saturn Aura 169 hp (126 kW) 160 ft⋅lb (217 N⋅m)
2008–2012 Chevrolet Malibu 169 hp (126 kW) 160 ft⋅lb (217 N⋅m)
2008–2009 Saturn Vue 169 hp (126 kW) @ 6200 rpm 161 ft⋅lb (218 N⋅m) @ 5100 rpm

The LE5 is also used in the following overseas models:

The LE5 or a close variant is also used in the Polaris Slingshot (announced July 27, 2014), coupled with a 5-speed manual transmission and a final belt drive. The Slingshot is a three-wheeled side-by-side street vehicle, classed as a motorcycle.[13]

LAT

The LAT is the designation used for the 2.4 L LE5 when used in GM's BAS mild hybrid vehicles.

Year(s) Model Power Torque
2007–2009 Saturn Aura Green Line Hybrid 164 hp (122 kW) @ 6400 rpm 159 ft⋅lb (216 N⋅m) @ 5000 rpm
2007 Saturn Vue Green Line Hybrid 170 hp (127 kW) @ 6600 rpm 162 ft⋅lb (220 N⋅m) @ 4200 rpm
2008 Saturn Vue Green Line Hybrid 172 hp (128 kW) @ 6500 rpm 167 ft⋅lb (226 N⋅m) @ 4500 rpm
2008-2009 Buick Lacrosse hybrid(China only) 164 hp (122 kW) @ 6400 rpm 166 ft⋅lb (225 N⋅m) @ 4800 rpm
2008–2009 Chevrolet Malibu Hybrid 164 hp (122 kW) @ 6400 rpm 159 ft⋅lb (216 N⋅m) @ 5000 rpm

LE9

The LE9 is an E85 compatible version of the 2.4 L (2,384 cc) LE5 Ecotec. Bore and stroke are 88 mm (3.5 in) and 98 mm (3.9 in) and has a compression ratio of 10.4:1, the same as the LE5.

Year(s) Model Power Torque
2009–2011 Chevrolet HHR 172 hp (128 kW) @ 5800 rpm (gasoline) 167 ft⋅lb (226 N⋅m) @ 4500 rpm (gasoline)
176 hp (131 kW) @ 5800 rpm (E85) 170 ft⋅lb (230 N⋅m) @ 5000 rpm (E85)
2010–2012 Chevrolet Malibu (fleet only) 175 hp (130 kW) @ 5800 rpm (E85) 170 ft⋅lb (230 N⋅m) @ 5000 rpm (E85)
2014-2019 Polaris Slingshot 173 hp (129 kW) @ 6200 rpm 166 ft⋅lb (225 N⋅m) @ 4700 rpm

LAF

The LAF is a direct injected 2.4 L. It uses technology based on GM's other four-cylinder direct injection applications, but with unique features designed for its specific application. This includes an 11.2:1 compression ratio that helps build power, slightly dished pistons that increase combustion efficiency and injectors with an application-specific flow rate.[14] [15]

Year(s) Model Power Torque
2010–2011
182 hp (136 kW) @ 6700 rpm (gasoline) 172 ft⋅lb (233 N⋅m) @ 4900 rpm (gasoline)
2010–2011 Buick LaCrosse 182 hp (136 kW) @ 6700 rpm 172 ft⋅lb (233 N⋅m) @ 4900 rpm
2011 Buick Regal 182 hp (136 kW) @ 6700 rpm 172 ft⋅lb (233 N⋅m) @ 4900 rpm
2011–2014 Chevrolet Orlando 174 hp (130 kW) @ 6700 rpm 171 ft⋅lb (232 N⋅m) @ 4900 rpm
2011 Chevrolet Captiva 182 hp (136 kW) @ 6700 rpm 172 ft⋅lb (233 N⋅m) @ 4900 rpm

LEA

The LEA is an E85 compatible variant of the LAF. Bore, stroke, and compression ratio all remain the same. Maximum engine speed is listed at 7000 rpm.to 799

Year(s) Model Power Torque Dyno Chart
2012–2013, 2015–2017 Buick Regal 182 hp (136 kW) @ 6700 rpm 172 ft⋅lb (233 N⋅m) @ 4900 rpm link
2012–2017 Buick Verano[16] 180 hp (134 kW) @ 6700 rpm 171 ft⋅lb (232 N⋅m) @ 4900 rpm link
2012–2017 Chevrolet Captiva Sport 182 hp (136 kW) @ 6700 rpm 172 ft⋅lb (233 N⋅m) @ 4900 rpm link
2012–2017
182 hp (136 kW) @ 6700 rpm 172 ft⋅lb (233 N⋅m) @ 4900 rpm
2012–2017 Chevrolet Orlando 174 hp (130 kW) @ 6700 rpm 171 ft⋅lb (232 N⋅m) @ 4900 rpm

LUK

The LUK is similar to the LAF, but adds the eAssist mild-hybrid system. Maximum engine speed is listed at 7000 rpm.

Year(s) Model Power Torque Dyno Chart
2012–2016 Buick LaCrosse 182 hp (136 kW) @ 6700 rpm 172 ft⋅lb (233 N⋅m) @ 4900 rpm link
2012–2017 Buick Regal 182 hp (136 kW) @ 6700 rpm 172 ft⋅lb (233 N⋅m) @ 4900 rpm link
2013–2014 Chevrolet Malibu ECO 182 hp (136 kW) @ 6700 rpm 172 ft⋅lb (233 N⋅m) @ 4900 rpm
2014 Chevrolet Impala 182 hp (136 kW) @ 6700 rpm 172 ft⋅lb (233 N⋅m) @ 4900 rpm link

Generation III

Generation III
Overview
Production2013–present
Layout
Displacement
  • 2.0 L (1,998 cc)
  • 2.5 L (2,457 cc)
Cylinder bore
  • 86 mm (3.4 in)
  • 88 mm (3.5 in)
Piston stroke
  • 86 mm (3.4 in)
  • 100.8 mm (3.97 in)
Compression ratio
  • 9.5:1
  • 11.3:1
Combustion
Fuel systemSpark Ignition Direct Injection (SIDI)
Fuel typeGasoline

2.0

LTG

A 2.0 L (1,998 cc) turbocharged direct injection version of the gen III Ecotec was available in the 2013 Cadillac ATS and Chevrolet Malibu. This engine is also available in the Cadillac XTS and Cadillac XT5 in the Chinese market. Bore and stroke are both 86.0 mm (3.39 in), and compression is 9.5:1. The engine uses a twin-scroll turbocharger with electronically controlled wastegate/bypass valve, air-to-air intercooler, stainless steel dual-scroll (1–4, 2–3) exhaust manifold designed to withstand 980 °C (1,800 °F) turbine temperature, and a rotacast aluminum alloy (A356T6) cylinder head with sodium-filled exhaust valves.[17] Maximum engine speed is listed at 7000 rpm.

Year(s) Model Power Torque Dyno Chart
2013–2014 Cadillac ATS 272 hp (203 kW) @ 5500 rpm 260 ft⋅lb (353 N⋅m) @ 1700–5500 rpm link
2015–2019 295 ft⋅lb (400 N⋅m) @ 3000–4600 rpm
2014–2016 Cadillac ATS 25T (China) 230 hp (172 kW) @ 5500 rpm 260 ft⋅lb (353 N⋅m) @ 2000–4000 rpm
2014–2019 Cadillac ATS 28T (China) 279 hp (208 kW) @ 5500 rpm 295 ft⋅lb (400 N⋅m) @ 2900–4600 rpm
2013 Chevrolet Malibu 259 hp (193 kW) @ 5300 rpm 260 ft⋅lb (353 N⋅m) @ 1700–5500 rpm
2014–2015 295 ft⋅lb (400 N⋅m) @ 5200 rpm link
2016–2022 250 hp (186 kW) @ 5300 rpm 260 ft⋅lb (353 N⋅m) @ 2000–5000 rpm
2013–2017 Opel Insignia A 247 hp (184 kW) @ 4500 rpm 295 ft⋅lb (400 N⋅m) @ 2000–4500 rpm
2017–2018 Opel Insignia B 256 hp (191 kW) @ 5300 rpm 295 ft⋅lb (400 N⋅m) @ 2500–4000 rpm
2014–2017 Buick Regal 259 hp (193 kW) @ 5300 rpm
  • 295 ft⋅lb (400 N⋅m) @ 3000–4000 rpm
  • (2500–4000 rpm for GS)
2018–present 250 hp (186 kW) @ 5400 rpm
  • 260 ft⋅lb (353 N⋅m) @ 2000–5200 rpm
  • 295 ft⋅lb (400 N⋅m) @ 3000–4000 rpm for AWD
2014&2019 Cadillac CTS 268 hp (200 kW) @ 5600 rpm 295 ft⋅lb (400 N⋅m) @ 3000–4500 rpm link
2016–2018 Buick Envision 252 hp (188 kW) @ 5500 rpm 260 ft⋅lb (353 N⋅m) @ 2000 rpm
2019–present 295 ft⋅lb (400 N⋅m) @ 2000 rpm
2016–2018 Cadillac CT6 265 hp (198 kW) @ 5500 rpm 295 ft⋅lb (400 N⋅m) @ 3000–4000 rpm
2016–present Chevrolet Camaro 275 hp (205 kW) @ 5600 rpm 295 ft⋅lb (400 N⋅m) @ 3000–4500 rpm
2017–present Buick GL8 260 hp (194 kW) @ 5500 rpm 258 ft⋅lb (350 N⋅m) @ 2000-5000 rpm
2018–2020 Chevrolet Equinox 252 hp (188 kW) @ 5500 rpm 260 ft⋅lb (353 N⋅m) @ 2500–4500 rpm
2018–2019 Chevrolet Traverse RS 257 hp (192 kW) @ 5500 rpm 295 ft⋅lb (400 N⋅m) @ 3000 rpm
2018–2020 GMC Terrain 252 hp (188 kW) @ 5500 rpm 260 ft⋅lb (353 N⋅m) @ 2500–4500 rpm
2018–2020 Holden Commodore 256 hp (191 kW) @ 5500 rpm 258 ft⋅lb (350 N⋅m) @ 3000–4000 rpm

LSY

A successor to the LTG debuted in the 2019 Cadillac XT4 and the 2019 Cadillac CT6. The LSY adds Active Fuel Management and a start-stop system, putting more priority to fuel economy than performance. Peak output is lower than the LTG, but is achieved at lower rpm for both power and torque. Bore is 83.0 mm (3.27 in), and stroke is 92.3 mm (3.63 in).[18]

Year(s) Model Power Torque Dyno Chart
2019 Cadillac CT6 237 hp (177 kW) @ 5000 rpm 258 ft⋅lb (350 N⋅m) @ 1500–4000 rpm
2019–present Cadillac XT4 237 hp (177 kW) @ 5000 rpm 258 ft⋅lb (350 N⋅m) @ 1500–4000 rpm
2019–present Chevrolet Malibu XL 241 hp (180 kW) @ 5000 rpm 258 ft⋅lb (350 N⋅m) @ 1500–4000 rpm
2020–2022 Opel Insignia B 170 hp (127 kW) @ 4250–6000 rpm 350 N⋅m (258 ft⋅lb) @ 1500–4000 rpm
200 hp (149 kW) @ 4250–6000 rpm 350 N⋅m (258 ft⋅lb) @ 1500–4000 rpm
230 hp (172 kW) @ 5000 rpm 350 N⋅m (258 ft⋅lb) @ 1500–4000 rpm
2020–present Buick GL8 Land Business Edition (Chinese market) 237 hp (177 kW) @ 5000 rpm 258 ft⋅lb (350 N⋅m) @ 1500–4000 rpm
2020–present Buick GL8 ES (Chinese market) 237 hp (177 kW) @ 5000 rpm 258 ft⋅lb (350 N⋅m) @ 1500–4000 rpm
2020–present Buick Lacrosse (Chinese market) 233 hp (174 kW) @ 5000 rpm 258 ft⋅lb (350 N⋅m) @ 1500–4000 rpm
2020–present Buick Regal GS (Chinese market) 237 hp (177 kW) @ 5000 rpm 258 ft⋅lb (350 N⋅m) @ 1500–4000 rpm
2020–present Cadillac CT5 237 hp (177 kW) @ 5000 rpm 258 ft⋅lb (350 N⋅m) @ 1500–4000 rpm
2020–present Cadillac XT5 237 hp (177 kW) @ 5000 rpm 258 ft⋅lb (350 N⋅m) @ 1500–4000 rpm
2020–present Cadillac XT6 237 hp (177 kW) @ 5000 rpm 258 ft⋅lb (350 N⋅m) @ 1500–4000 rpm
2020–present Chevrolet Blazer 230 hp (172 kW) @ 5000 rpm 258 ft⋅lb (350 N⋅m) @ 1500–4000 rpm
2020–present GMC Acadia 230 hp (172 kW) @ 5000 rpm 258 ft⋅lb (350 N⋅m) @ 1500–4000 rpm
2021–present Buick Envision 230 hp (172 kW) @ 5000 rpm 258 ft⋅lb (350 N⋅m) @ 1500–4000 rpm


2.5

LCV

First appearing in the 2013 Chevrolet Malibu and 2013 Cadillac ATS, the 2.5 L Gen III block has been reworked to reduce engine noise and vibrations, while improving fuel economy and low-end torque.[17][19][20] LCV is scheduled to replace the direct-injected 2.4 L throughout North American GM products within a year.[21] Engine production started in April 2012 at GM's Tonawanda Engine plant.

The new combustion system developed with GM's proprietary computational fluid dynamics (CFD) analysis software features a higher compression ratio which helps improve fuel efficiency and has improved knock resistance. The engine features dual overhead camshafts with continuously variable valve timing and increased-authority cam phasing (increased phase rotation angle), a high-pressure returnless direct-injection fuel system with camshaft-driven fuel pump delivering 750 psi (52 bar) at idle and 2,250 psi (155 bar) at full load, higher-flowing intake and exhaust ports in the cylinder head, electronic throttle control and pistons with jet-spray oil cooling. The engine redline is 7000 rpm.

The balance shafts are relocated from the cylinder block to oil pan module. The two-piece steel-aluminum oil pan features in-pan integrated oil-pump assembly driven by the balance shaft with a shorter inverted-tooth chain. Other improvements include inverted-tooth chain driving the camshaft, forged steel crankshaft, cast aluminum bedplate with main bearing cap inserts made of iron, high-pressure fuel rail with rubber-isolated assembly, acoustically shielded plastic cover for the intake manifold, and structurally enhanced aluminum camshaft cover and front cover. These improvements helped reduce noise intensity by 40% compared to the 2.4 L engine and change the noise signature into a higher frequency above 2,000 Hz. The engine also uses a variable-displacement oil pump and an actively controlled thermostat. Direct injection reduces emissions by 25%, while continuous cam phasing eliminates the need for an EGR system. Maximum engine speed is listed at 7000 rpm.

Displacement for the 2.5 L engine is 2,457 cc with an 88.0 mm (3.46 in) bore and 100.8 mm (3.97 in) stroke. Compression ratio is 11.3:1.

Year(s) Model Power Torque Dyno Chart
2013–2016[22] Cadillac ATS 202 hp (150.69 kW) @ 6300 rpm 191 ft⋅lb (259 N⋅m) @ 4400 rpm link
2013 Chevrolet Malibu 197 hp (146.96 kW) @ 6300 rpm 191 ft⋅lb (259 N⋅m) @ 4400 rpm
2015–2022 Chevrolet Colorado 200 hp (149 kW) @ 6300 rpm 191 ft⋅lb (259 N⋅m) @ 4400 rpm link
GMC Canyon link
2016 Chevrolet Malibu Limited 196 hp (146 kW) @ 6300 rpm 186 ft⋅lb (252 N⋅m) @ 4400 rpm [23]
2017–2020 Buick Envision 197 hp (147 kW) @ 6300 rpm 192 ft⋅lb (260 N⋅m) @ 4400 rpm
2017 Buick GL8 197 hp (147 kW) @ 6300 rpm 186 ft⋅lb (252 N⋅m) @ 4400 rpm
2017–2021[24] GMC Acadia 194 hp (145 kW) @ 6300 rpm 190 ft⋅lb (258 N⋅m) @ 4400 rpm
2019–2021[25][26] Chevrolet Blazer 193 hp (144 kW) @ 6300 rpm 188 ft⋅lb (255 N⋅m) @ 4400 rpm

LKW

Same as the LCV but features Intake Valve Lift Control (IVLC) system provides two-stage variable valve lift in addition to continuous variable timing. Continuously commanded by engine control unit, the valve rocker arm switches between high-lift and low-lift profiles on the camshaft, actuated by an oil control valve through a two-feed stationary hydraulic lash adjuster, allowing for either 4.0 or 10.5 mm lift.[27] It also features a start-stop system. Maximum engine speed is listed at 7000 rpm.

Year(s) Model Power Torque Dyno Chart
2014–2019 Chevrolet Impala 196–197 hp (146–147 kW) @ 6300 rpm 186–191 ft⋅lb (252–259 N⋅m) @ 4400 rpm link
2014–2015 Chevrolet Malibu 196 hp (146 kW) @ 6300 rpm 186 ft⋅lb (252 N⋅m) @ 4400 rpm link
2018– Saleen S1 450 hp (336 kW) 400 ft⋅lb (542 N⋅m)

LK0

Year(s) Model Power Torque Dyno Chart
2024- Chevrolet Traverse 328 hp (245 kW) @  rpm 326 ft⋅lb (442 N⋅m) @  rpm
GMC Acadia

HCCI

At Tech Show Torino 2008, GM Powertrain Europe announced the ignition-less HCCI (Homogeneous Charge Compression Ignition) mode of the direct injection version of 2.2 L engine.[28] HCCI version is equipped with two-step adjustable valve lift with variable cam phasing and advanced ECU with cylinder pressure sensors, uses lean burn cycle similar to that of a diesel engine, and is claimed to further reduce fuel consumption by 15%.[29]

See also

Wikimedia Commons has media related to Ecotec engine.

References

  1. ^ "Ecotec Supercharged 2.0L I-4 (LSJ) Car Engine". Archived from the original (DOC) on 27 October 2011. Retrieved 22 December 2019.
  2. ^ a b c d e f g h i "GM's Ecotec 2.2-Liter 4-Cylinder Engine Delivers". The Auto Channel. Pontiac, Michigan. Retrieved 15 March 2013.
  3. ^ "2003 Saab 9-3 Sport Sedan – Press Release". saabworld.net. 12 May 2016.
  4. ^ http://archives.media.gm.com/division/2005_prodinfo/powertrain/index.html. Retrieved 16 April 2014. {{cite web}}: Missing or empty |title= (help)
  5. ^ "検索結果: 2001年 スバル トラヴィック Sパッケージ" [Great Car Pavilion: 2001 Subaru Traviq S-package]. Gazoo.com (in Japanese). Toyota Motor Corporation. Archived from the original on 2008-10-11. Retrieved 2012-05-22.
  6. ^ Chris Shunk. "GM releases turbo upgrade kit for Solstice GXP, Sky Redline and HHR SS". Autoblog.com. Retrieved 2012-01-24.
  7. ^ "Big Power, Small Package". AutoWeek. Retrieved April 4, 2006.
  8. ^ Johansen, Ida (2023-05-04). "Majauktion 2023: SAAB 9-3 Aero Turbo4 — 2014" [May Auction 2023]. Bilweb Auctions (in Swedish). Archived from the original on 2023-05-05.
  9. ^ "2013 Buick Verano Turbo Debuts with 250 Horsepower". 11 June 2012.
  10. ^ "2012 Buick Regal GS rated at 270 hp". Autoweek. 2011-06-15. Retrieved 2012-01-24.
  11. ^ "2008 Ecotec 2.2L I4 ( L61 )". Retrieved 30 July 2014.
  12. ^ "Why the 2010-2011 LE8 is more fuel effeciant and longevity is greater".
  13. ^ "Slingshot : Open-air Roadster - 3 Wheel Motorcycle | Polaris".
  14. ^ "NAIAS 09: 2010 ECOTEC 2.4l SIDI". Gminsidenews.com. Retrieved 2012-01-24.
  15. ^ Roth, Dan (2008-12-17). "DI FTW: GM unveils new direct-injection 2.4 L EcoTec and 3.0 L V6". autoblog.com. Retrieved 2008-12-17.
  16. ^ "Buick Introduces The All-New 2012 Verano". Media.gm.com. 2011-01-06. Retrieved 2012-01-24.
  17. ^ a b "New 2.0L Turbo Engine Gives the 2013 Chevrolet Malibu Enhanced Performance and Refinement". 20 September 2012.
  18. ^ "2019 Cadillac XT4 Crossover".
  19. ^ "New Ecotec 2.5L Engine More Efficient, Refined and Powerful". 19 September 2011.
  20. ^ "All-New Ecotec 2.5L Powers Chevrolet Malibu's Quest for Quietness". 19 September 2011.
  21. ^ "Car and Driver Blog » GM to Replace 2.4-liter Fours with 2.5-liters Across the Range". blog.caranddriver.com. Archived from the original on 2012-01-13.
  22. ^ "2017 Cadillac ATS Drops Base 2.5-Liter I-4 Engine Option". 29 June 2016.
  23. ^ "GM Online Order / Reference Guide".
  24. ^ "2022 GMC Acadia Ditches 2.5L Four-Cylinder Engine". GM Authority. 3 May 2021. Retrieved 2021-05-14.
  25. ^ "GM Considering Removing 2.5L Engine From Chevy Blazer". GM Authority. 27 March 2021. Retrieved 2021-05-14.
  26. ^ "2022 Chevy Blazer To Lose L And 1LT Trim Levels". GM Authority. 12 May 2021. Retrieved 2021-05-14.
  27. ^ "2014 Impala Engine Gets a High-Tech Lift". 17 September 2012.
  28. ^ General Motors Europe (May 2008). "A Look Into the Future of Engines and Transmissions". CONTROLLED AUTO-IGNITION HCCI.
  29. ^ "HOMOGENEOUS CHARGE COMPRESSION IGNITION – HCCI". media.gm.com. Retrieved 30 July 2014.
  • Larry Webster. "Getting Rid of the H-Word". Car and Driver (May 2000): 93.
Retrieved from "https://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&oldid=1181742643"