The 1.4-liter gasoline engine is one of Volkswagen’s latest EA211 series of small engines.
Volkswagen is introducing the so-called EA211 1.4-liter, four-cylinder turbocharged, direct-injection engine into the Jetta range, replacing the previous naturally aspirated 2.0-liter engine that was used in the S model and the 1.8T TSI engine in the SE model. This brings implementation of downsizing to more than 97% of vehicles sold by Volkswagen in the U.S.
Volkswagen was an early leader with the use of small displacement; highly efficient turbocharged and direct-injection engines in the U.S. Volkswagen first used the now common combination of turbocharging and direct injection in the U.S. with its TDI diesel engines in the Passat in 1996 and extended it into gasoline engines in the 2006 Jetta GLI and GTI models.
Details were provided during the annual Center for Automotive Research Management Briefing Seminars in Traverse City.
The 1.4-liter gasoline engine is one of Volkswagen’s latest EA211 series of small engines. It has lightweight aluminum construction, an integrated (into the head) exhaust manifold, and a toothed-belt drive for its double overhead camshaft valvetrain with variable intake and exhaust timing. The only aspect to be carried over from the EA111 engine that preceded it is the 82 mm cylinder spacing. The cylinder bore was decreased by 2 mm (to 74.5mm) while the stroke was increased to 80 mm, a change which not only helps compactness, but also increases torque.
The 1.4-liter engine in the Jetta has a 10.0:1 compression ratio, direct fuel injection, and turbocharging. It is rated at 150 horsepower at 5000 rpm. This engine’s turbocharging system has a small, single-scroll compressor. The intercooler, uniquely, is integrated directly into the injection-molded induction pipe. This design generates maximum torque of 184 pound-feet at 1400 rpm.
The engine will be paired to either a five-speed manual or a six-speed automatic transmission. Manufacturer estimated fuel economy on the highway is predicted to be 39 mpg with the six-speed automatic transmission, an improvement of 13 % compared to the EPA estimated highway fuel economy for the previous 2.0-liter engine and 7% over the 1.8T.
