Alfa Romeo JTS engine

JTS, short for Jet Thrust Stoichiometric, is Alfa Romeo's name for a gasoline direct-injection engine family introduced in 2002, built as both a straight-four and a V6. The first, a 2.0 litre four-cylinder in the Alfa Romeo 156, was based on the Twin Spark engine but replaced the second spark plug with direct injection, lifting output from 155 to 165 PS and torque from 187 to 206 N m. In 2005 the 159 brought a 1.9 litre and a 2.2 litre four with General Motors Ecotec blocks, and a 3.2 litre V6 derived from the GM High Feature engine and built by Holden in Australia. These JTS V6 units were not related to the Busso V6, and Alfa stopped using the V6 in 2010.