JTS engine
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| Alfa Romeo JTS engine | |
|---|---|
| Manufacturer | Alfa Romeo |
| Production | 2002– |
| Predecessor | Alfa Romeo Twin Cam Alfa Romeo V6 engine |
| Class | DOHC 4-valve I4, V6 |
| Engine | 1.9 L 2.0 L 2.2 L 3.2 L |
The JTS engine is a gasoline direct injection engine produced by Alfa Romeo. It exists in two forms, straight-4 and V6, and was introduced into the Alfa lineup in 2002.
[edit] Four cylinder
The JTS engine debuted in 2002 in the Alfa Romeo 156. The engine replaced the 2.0 Twin Spark, by replacing this system with direct injection, dubbed "Jet Thrust Stoichiometric". This improved power from 114 kW (155 PS) to 121 kW (165 PS), but more importantly, torque climbed from 187 Nm (137 ft.lbf) to 206 Nm (151 ft.lbf). In 2003, this engine was introduced to the GTV/Spider coupé and roadster.
In spite of its benefits to power, torque and economy, the JTS was not used in the smaller 147 or the larger 166, and much less in other models from the Fiat Group. It was only in 2005, with the arrival of the 159, that more variants of the JTS were produced. The 2.0 JTS gave way to a 1.9 L variant with 118 kW (160 PS) and a 2.2 L version with 136 kW (185 PS). The Brera also benefits from this engine, and it will be used in future Alfa Romeo models. The 1.9JTS and 2.2JTS form part of a new engine family and are completely different from the 2.0JTS.
[edit] V6
The JTS direct injection system was first used in a V6 engine in 2005 with the introduction of the Alfa 159 and Brera. This is not related to the Alfa Romeo V6 engine, but is instead a derivation of the GM High Feature engine, modified by Alfa and capable of generation 191 kW (260 PS), a number GM can only reach with the larger 3.6 L variant.
