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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.
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Lambda MPi
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.
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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.
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Lambda II MPi
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.
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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.
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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.
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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.
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Lambda II GDi
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. 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.
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The 3.3 L G6DH version was introduced with the 2012 Azera. The engine produces 290–294 hp (216–219 kW; 294–298 PS) at 6,400 rpm and 252–255 lb·ft (342–346 N·m) of torque at 5,200 rpm.
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Lambda II RS (Lambda MPi)
The Lambda II RS (Rear-drive Sport) designation denotes longitudinal Lambda engine variants.
The 3.8 L (3778 cc) version produces 299–306 hp (223–228 kW; 303–310 PS) at 6,300 rpm and 266 lb·ft (361 N·m) of torque at 4,700 rpm.
The engine is all-aluminum, featuring DOHC and 24 valves.
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Lambda II RS GDi (Lambda II GDi)
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.
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Lambda II T-GDi (2016-)
It is a version of Lambda II GDi 3.3 engine with two turbochargers.
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Race engines
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
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.