Both Hyundai Genesis Coupe engines receive significant technology
upgrades, backing up its new design statement with impressive
performance gains. The 3.8-liter Lambda DOHC V6 engine adds
sophisticated direct-injection technology, adding 42 horsepower (a
generous 14 percent increase) and 29 lb.-ft of torque (an eleven percent
increase). Peak horsepower rises to 348 at 6,400 RPM, with peak torque
increasing to 295 lb.-ft. at 5,300 RPM on premium fuel. In addition,
lambda-engine anti-knock technology gives this V6 the versatility to run
on regular fuel. This new direct-injected engine will easily propel the
Genesis Coupe from zero to 60 mph in the lower five-second range on its
way to an impressive 149 mph electronically-limited top speed. The
Lambda V6 intake system also now employs an intake sound induction pipe
into the cabin to ensure this engine's aural character matches its
visceral appeal.Not to be outdone by its bigger brother, the
turbocharged, intercooled 2.0-liter DOHC inline four-cylinder
substitutes a new twin-scroll design for its turbocharger in addition to
a larger intercooler with enhanced thermal efficiency. The twin-scroll
design is more efficient at recovering exhaust energy and produces
cooler cylinder temperatures than the former single-scroll design. In
addition, the twin-scroll is more precise, with improved combustion
efficiency, reduced turbo lag, leaner air/fuel ratios and more evenly
distributed pressure in the exhaust ports, resulting in simultaneous
power, efficiency and emissions improvements. Also, a 53 percent larger
intercooler further reduces intake temperatures, providing denser,
cooler air from which to develop even more power.This turbocharged
engine also benefits from Dual CVVT on both intake and exhaust
camshafts. The 2.0-liter turbo now generates 274 horsepower (a massive
30 percent increase) and 275 lb.-ft. of torque (an impressive 23 percent
increase) on premium fuel. And, unlike many competitive turbo engines,
this turbo's anti-knock sensors automatically adjust ignition timing and
engine mapping to run perfectly on regular fuel, yielding 260
horsepower at 6,000 RPM and 260 lb.-ft. of torque at 2,000 RPM. The
turbo engine also features a cast-aluminum cylinder block and cylinder
head. All these improvements give the Genesis Coupe 2.0T a
power-to-weight ratio of 12.3, superior to the upcoming Scion FR-S sports coupe and the Honda Civic Si.
