Hyundai 1.6 GDi engine named to Ward's 10 Best Engines list. Двигатели хендай gdi

Hyundai 1.6 GDi engine named to Ward's 10 Best Engines list.

Following in the footsteps of Hyundai’s Tau V8 engine, the 1.6-liter GDi “Gamma” engine, which debuted on the all-new Accent in the US, has been named one of the Ward’s 10 Best Engines by WardsAuto World.

“Hyundai spent three years on the list with its excellent Tau 5.0-liter V-8, but 2012 brings evidence the auto maker can deliver world-class small engines as well,” writes WardsAuto World Executive Editor, Tom Murphy. “The new 1.6-liter GDi Gamma four-cylinder is powering entry level vehicles such as the Hyundai Accent and demonstrates its versatility in the Hyundai Veloster three-door coupe. Mated with an excellent six-speed manual transmission for our evaluation, this package makes the Accent an easy pick for B-class car shoppers. Priced a shade above $14,000, the Gamma-equipped Accent is an excellent value that will surprise and delight any first-time buyer.”

The Hyundai Accent is available with the 1.6-liter GDi Gamma engine paired with a proprietary six-speed automatic or manual transmission. This combination results in best-in-class fuel economy of 30 mpg city/40 mpg highway and best-in-class 138 horsepower.

“Gasoline-direct-injection technology allowed Hyundai engineers to create an engine that is powerful, fuel-efficient and has reduced emissions,” said Hyundai American Technical Center Inc. (HATCI) Powertrain Director, John Juriga. “Despite its small size, it generates some big numbers, with both impressive horsepower output and up to 40 mpg on the highway.”

The all-new Gamma 1.6-liter four-cylinder engine is the smallest Hyundai engine to use Gasoline Direct Injection (GDi) in the U.S., which helps deliver an estimated highway fuel economy of up to 40 mpg, lower emissions and higher reliability. Through the use of GDi technology, the Gamma 1.6-liter engine delivers a peak output of 138 horsepower at 6,300 rpm and maximum torque of 123 lb.-ft. at 4,850 rpm. However, GDi is only part of the story, as the new Gamma also features Dual Continuously Variable Valve Timing, an electronic throttle control, a roller timing chain, variable induction and innovative anti-friction coatings such as CrN Physical Vapor Deposition (PVD) coating and Diamond Like Carbon (DLC) coating.

The other nomitated engines are:

  • 3.0 TFSI supercharged DOHC V6 (Audi A6).
  • 2.0 DOHC inline four-cylinder turbo N20 (BMW Z4/528i).
  • 3.0 N55 Turbo DOHC inline six-cylinder (BMW 335i Coupe).
  • 3.6 Penta Star DOHC V6 (Chrysler 300S / Jeep Wrangler).
  • 2.0 DOHC inline four-cylinder eco-boost (Ford Edge).
  • 5.0 DOHC V8 (Ford Mustang Boss 302).
  • 2.0 Turbo DOHC inline four-cylinder ( Buick Regal GS).
  • 2.0 Sky Active DOHC inline four-cylinder (Mazda 3).
  • 3.5 DOHC V6 HEV (Infiniti M35h).

Following in the footsteps of Hyundai’s Tau V8 engine, the 1.6-liter GDi “Gamma” engine, which debuted on the all-new Accent, has been named one of the Ward’s 10 Best Engines by WardsAuto World.

Passion about Korean cars Kia & Hyundai, I prefer Kia than Hyundai, but the mother brand has amazing models like the Genesis, since I was a child. I'm always try to show the good and the bad from the companys. Tech lover, Android user, Nexus fan.

Hyundai Motor Unveils New Hybrid Dedicated GDI Engine

Hyundai Motor is pushing ahead on two fronts in powertrain technology. At the company’s annual International Powertrain Conference, Hyundai Motor has announced a new 1.6-liter GDI engine addition to the highly successful and versatile Kappa engine family, and an advanced front-wheel drive 8-speed automatic transmission.

New Kappa 1.6-liter GDI engine The new Kappa 1.6-liter GDI engine is designed to boost power, performance and fuel economy, while driving down production costs and CO2 emissions in the growing mid-class hybrid electric vehicle (HEV) and plug-in hybrid electric vehicle (PHEV) segments. Arriving in markets early 2016, the new unit marks the company’s first combination of the Atkinson cycle, cooled exhaust gas recirculation (EGR) and a long stroke specification to maximize thermal efficiency.

The Atkinson cycle itself reduces the pumping loss through its late intake valve closing time, while enhancing fuel savings by increasing the expansion ratio relatively. In the process, an intake oil control valve (OCV) integrated with the continuous variable valve timing (CVVT) operates to simplify oil flow. Also, the CVVT phasing angle is extended for faster CVVT response.

The EGR system applied to the engine helps to recirculate exhaust gases back into the cylinder and burns them again. The new Kappa HEV engine alone delivers a 3% gain in fuel economy through three stages: gas extracted upstream ensures more than 20% EGR rate, the EGR cooler delivers a cooling efficiency of 98% and the single stage gear EGR valve results in a 56.9 millisecond response time. A specially designed straight intake port increases the tumble flow of the EGR gas to allow fast combustion to further aid economy and boost power output.

Moreover, fuel savings are further boosted by splitting the thermostat cooling temperatures of the cylinder block (105?) and head (88?), which then reduces friction and knock by allowing a higher temperature coolant in the block. The cylinder block heats up quickly for lower friction and a more efficient run, while the cylinder head operates at moderately low temperatures to suppress knock tendency, hence improving fuel economy.

The new engine also features a six-hole laser-drilled GDI injector, high pressure fuel supply system of maximum 200 bar, securing clean combustion, improving fuel economy and reducing emissions to fulfill all global emissions standards.

The integration of technologies achieves a new engine thermal efficiency from 30% (of any typical engine) to 40% and secures competitive performance. The new unit produces 105 PS (77.2 kW), 15.0 kgf.m (147 Nm) and will be fit for future hybrid models.

New Front-Wheel Drive 8-Speed Automatic Transmission The new front-wheel drive 8-speed automatic transmission has improved fuel economy by an impressive 7.3% when compared with the existing 6-speed automatic transmission unit. Coupled with better driveability and smoothness of the wider gear span, Hyundai Motor will present a powerful new option with its Lambda, Theta turbo GDI, and R family engines, targeting the large and luxury car segments.

The new transmission is based on a unique layout, with an additional clutch to Hyundai Motor’s 6-speed automatic transmission. By increasing the gear span with a more number of gears, the transmission comes with an improved acceleration performance at the low gear range, and enhanced fuel economy and NVH at the high gear range. Even with all these improvements, the weight has also been reduced by 3.5 kg from the 6-speed automatic transmission.

The unit’s gains in economy and performance come from several sources including a direct control valve body that allows solenoid control of the clutch directly rather than via several valves. By simplifying the structure of the valve body, the new transmission reduces oil leakage and improves the stability of gear shifting.

Other optimized parts include a re-engineered oil pump. This integral component may reduce the power of most auto transmissions, so the company improved efficiency of the 8-speed automatic transmission by optimizing the teeth and reducing the size of the pump gearing.

The transmission’s damper control multi-disc torque converter is another key technology that enhances fuel economy and drivability. A separate system to control the 4-disc damper clutch, instead of a single disc, allows the enlargement of the lock-up range and faster response for damper control.

The new transmission also features a three-pronged approach to friction loss, ultimately boosting economy. The groove patterns are engineered to optimize the clutch for low drag, while a refined baffle plate minimizes the churning losses of transmission oil. Finally, demonstrating the attention to detail in engineering, the ball bearing contact areas have been reduced between rolling elements to help boost the powertrain’s efficiency.


Source :

Hyundai Theta engine - Wikipedia

The Hyundai Theta (G4KC) is a gasoline four-cylinder automobile engine family. The third all-aluminum engine of Hyundai Motor Company debuted in the fourth-generation Hyundai Sonata sedan (codenamed NF), which was unveiled in August 2004[citation needed] in South Korea. Hyundai Motor Manufacturing Alabama (HMMA) built a Theta II engine shop on the grounds of their Montgomery, Alabama automobile factory.

Global Engine Alliance[edit]

The Global Engine Alliance was a joint venture between Chrysler, Mitsubishi Motors, and the Hyundai Motor Company for developing a line of shared 4-cylinder engines. The initial design of the engine block and cylinder head was handled by Hyundai. However, each manufacturer configured their variants of the initial design differently based on their needs. In 2009, Chrysler bought out Mitsubishi and Hyundai's stake in the joint-venture; however, each company retained rights to build the engines.

Technical details[edit]


The first version of the Theta Engine had two variants, the 2.0L and the 2.4L.

2.0L - G4KA

The 2.0L version is an inline 4-cylinder engine that carries a bore and stroke of 86 mm and a 10.5:1 compression ratio; the engine makes 143 hp (107 kW; 145 PS) at 6,000 rpm and 140 lb⋅ft (190 N⋅m) of torque at 4,000 rpm. It uses a timing chain instead of belt, and the engine dry weight is 134 kg (295 lb).

2.4L - G4KC

The 2.4L version is an inline 4-cylinder engine that carries a bore of 88.0 mm, stroke of 97.0 mm and a 10.3:1 compression ratio; the engine makes 162 hp (121 kW; 164 PS) at 5,800 rpm and 164 lb⋅ft (222 N⋅m) of torque at 4,250 rpm.[1]

Theta II[edit]

2.0L - G4KD

The engine features hollow stainless-steel dual overhead camshafts (DOHC) with powder-metal cam lobes, pent-roof combustion chambers and shimless bucket tappets in the cylinder head. BorgWarner Morse TEC supplies the complete timing system which uses the company's proprietary silent timing chains. Continuously variable valve timing (CVVT) works on the intake side.

The aluminum alloy engine block, which is formed using a high-pressure die-cast method, has a unique Metaldyne-supplied cassette-type balance shaft module with a two-stage oil pump built-in. In the lower-end, the block is reinforced by a ladder frame. Other notable features include fracture-split sinter-forged connecting rods manufactured by Sinteron and a stainless-steel exhaust manifold.

Theta's EMS (engine management system) software is EMS-II from Siemens VDO and the 32-bit PCM (Powertrain Control Module) calculates the amount of intake air by utilizing a contamination-proof hot-film type MAF (mass air flow) sensor.

The MPI version of the 2.0L Theta engine has a 10.5:1 compression ratio, and it produces 163 hp (122 kW; 165 PS) at 6,200 rpm and 146 lb⋅ft (198 N⋅m) of torque at 4,600 rpm and is available in the Middle East.

The MPI version of the 2.4L Theta engine has a 10.3:1 compression ratio, and it produces 176 hp (131 kW; 178 PS) at 6,000 rpm and 168 lb⋅ft (228 N⋅m) of torque at 4,000 rpm and is available in the Middle East and Europe.


Theta/Theta-II Engine - 2.0L (1998cc)[edit]

(G4KA, G4KD, G4KF, G4KH,)

2011 Hyundai Sonata Limited 2.0T, turbo GDI engine

Theta/Theta-II Engine - 2.4L (2359cc)[edit]

(G4KC, G4KE, G4KG, G4KJ,)

2.0T GDI turbo[edit]

The Theta engine is turbocharged for use in the Sonata 2.0T and Genesis Coupe.

In the 2009-2012 Genesis coupe turbo, it produced 210 hp (213 PS) @ 6,000 rpm on 87 octane (AKI) gasoline, and 223 hp (226 PS) on 93 AKI. Torque remains the same at 223 lb⋅ft (302 N⋅m) @ 2000 rpm. In the 2013-2014 model,the engines got upgraded, the new 2.0T now produces 274 hp (204 kW; 278 PS) and 275 lb·ft (373 N·m) torque due to a bigger turbo The Theta block used is very similar to the Mitsubishi Evolution X 4B11T, as core components like pistons and rods are said should move freely between them,[2] however, the two engines are not identical. The 4B11T is a semi-closed deck block with larger oil and coolant passages, where as the Theta is an open deck block.

The turbo used is a Mitsubishi TD04 model.

The 2.0L GDI turbo in (2011-2014 Sonata) develops 274 hp (278 PS) and 269 lb⋅ft (365 N⋅m) of torque. The fuel economy is rated at 22mpg (10.7L / 100KM) in the city and 34mpg (6.92L / 100KM) on the highway. It comes exclusively with a 6-speed automatic transmission.

The 2.0L GDI turbo in 2019 Hyundai Veloster N andas i30 N develops 275 hp (279 PS) and 260 lb⋅ft (353 N⋅m) of torque. The fuel economy is rated at mpg (L / 100KM) in the city and mpg (L / KM) on the highway. It comes exclusively with a 6-speed manual transmission.

Crate engines[edit]

On 2013-11-05, Hyundai announced the creation of a new factory crate engine program at the 2013 SEMA Show in Las Vegas, which initially included a 2.0-liter, turbocharged four-cylinder engine. The crate engine program began in December 2013.[3]

See also[edit]


External links[edit]

Hyundai Lambda engine - Wikipedia

The Hyundai Lambda engine family is the company's modern all-aluminum V6. It is manufactured at Hyundai's HMMA plant in Montgomery, Alabama, United States. All versions of this engine use a timing chain.

Lambda MPi[edit]

This engine family includes aluminum block and heads, variable valve timing on the intake side, and 4 valves per cylinder.

The 3.3 Lambda MPi G6DB version was introduced with the 2006 Sonata. It produces 235 hp (175 kW; 238 PS) at 6,000 rpm and 226 lb⋅ft (306 N⋅m) of torque at 3,500 rpm. Bore and stroke measure 92 x 83.8 mm (3.6 x 3.3 in) for a total displacement of 3342 cc.


The 3.8 L (3778 cc) G6DA version produces 263 hp (196 kW; 267 PS) at 6,000 rpm and 257 lb⋅ft (348 N⋅m) of torque at 4,500 rpm. It has a 96 mm (3.8 in) bore and 87 mm (3.4 in) stroke.


Lambda II MPi[edit]

Changes to Lambda MPi series include adding a CVVT on the exhaust side as well, therefore it does have Dual CVVT.

The 3.0 Lambda II MPi engine is rated 247 hp (184 kW; 250 PS) at 6,400 rpm and 208 lb⋅ft (282 N⋅m) of torque at 5,000 rpm.


The 3.3 Lambda MPi version produces 262–270 hp (195–201 kW; 266–274 PS) at 6,200-6,400 rpm and 233–235 lb⋅ft (316–319 N⋅m) of torque at 4,500-5,300 rpm depending on the application. Bore and stroke measure 92 x 83.8 mm (3.6 x 3.3 in) for a total displacement of 3342 cc.


The 3.5 Lambda II MPi (3470 cc) G6DC Lambda II version debuted in the global version of the 2011 Kia Sorento. This engine comes with and is rated at 276–286 hp (206–213 kW; 280–290 PS) at 6,300-6,600 rpm and 248 lb⋅ft (336 N⋅m) at 5,000 rpm depending on application. Bore x stroke measure 92 x 87 mm; it uses similar technology as the 3.3L and 3.8L variants of the Lambda family.


The 3.8 L (3778 cc) version produces 283 hp (211 kW; 287 PS) at 6,200 rpm and 263 lb⋅ft (357 N⋅m) of torque at 4,500 rpm. It has a 96 mm (3.8 in) bore and 87 mm (3.4 in) stroke.


Lambda II GDi[edit]

This engine series includes Dual CVVT and GDI.

Hyundai debuted a GDI version of Lambda V6 at 2010 Beijing Auto Show. Hyundai presented few details but the engine has power rating of 298 hp (222 kW; 302 PS).

The 3.0 Lambda II GDi G6DG version released with the Azera/Grandeur 5th generation.[1] and produces 266 hp (198 kW; 270 PS) at 6,400 rpm and 234 lb⋅ft (317 N⋅m) of torque at 5,300 rpm. Compression ratio is 11.0 : 1. Bore and stroke measure 92 x 75.2 mm (3.6 x 2.96 in) for a total displacement of 2999 cc.


The 3.3 L G6DH version was introduced with the 2012 Azera. The engine produces 280–294 hp (209–219 kW; 284–298 PS) at 6,400 rpm and 248–255 lb⋅ft (336–346 N⋅m) of torque at 5,200 rpm.


Lambda II RS (Lambda MPi)[edit]

The Lambda II RS (Rear-drive Sport) designation denotes longitudinal Lambda engine variants.

The 3.8L version produces 306 hp (228 kW; 310 PS) at 6,400 rpm and 265 lb⋅ft (359 N⋅m) of torque at 4,600 rpm.

The engine is all-aluminum, featuring DOHC and 24 valves.


Lambda II RS GDi (Lambda II GDi)[edit]

Hyundai released a GDI variant of the Lambda RS engine for the 2012 Genesis and 2013 Genesis Coupe.

The 3.8 L (3778 cc) version produces 333 hp (248 kW; 338 PS) at 6,400 rpm and 291 lb⋅ft (395 N⋅m) of torque at 5,100 rpm for the Genesis Sedan and 348 hp (260 kW; 353 PS) at 6,400 rpm and 295 lb⋅ft (400 N⋅m) of torque at 5,300 rpm for the Genesis Coupe. Compression ratio is 11.5:1.


Lambda II T-GDi (2016-)[edit]

It is a version of Lambda II GDi 3.3 engine with two turbochargers.[2]

It produces 365 hp (272 kW; 370 PS) at 6,000 rpm and 376 lb⋅ft (510 N⋅m) of torque between 1,300 and 4,500 rpm.


Race engines[edit]

Hyundai have developed a 750bhp version of this engine in an attempt to break the Pike's Peak Hillclimb record. The race-version is reported to have been bored and stroked to 4.1 liters of swept displacement with an added turbocharger to increase power output[1].

Crate engines[edit]

On 5 November 2013, Hyundai announced the creation of a new factory crate engine program at the 2013 SEMA Show in Las Vegas, which initially included a Lambda 3.8-liter, direct-injected V6 engine. The crate engine program began in December 2013.[3]


See also[edit]

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