Двигатели Ford Zetec и Sigma: Развитие и особенности

As with the Ford Taurus SHO's SHO V6 engine, development of the Zetec S was a collaborative effort between Ford, Mazda and Yamaha. The engine's sounds were refined in the Ford acoustics center in Cologne Merkenich, Germany.

These engines in the first generation Focus produced 75 and respectively, but for MkII Focus the 1.4 variant was slightly modified and produced Both engines have belt driven camshafts and Electronic Fuel Injection systems. They weigh The 1.6 Ti VCT was introduced in 2004, it features Variable Cam Timing; this version is used in MkII Focus. A new or EU5 version is used in the MkIII Focus, also a 1.6 L version is used in Ford Fiesta Zetec S. The Sigma is usually coupled to the Ford IB5 five speed manual transmission.

The third generation of the SCCA Spec Racer, commonly known as the Gen3 was introduced in 2015, and uses the 1.6 L Sigma engine. The engine is sold by SCCA Enterprises as a sealed unit.

The Zetec SE has no common parts or design with the larger Zetec E engines apart from the name. This gives rise to some confusion since it suggests that they are members of the same family when they are, in fact, completely different. Zetec E units are mounted transversely with the inlet manifold at the rear, whereas the Zetec SE units are mounted with the inlet manifold at the front.

In 2012 Ford replaced the Sigma engine with a brand new 3 cylinder 1.0–litre EcoBoost engine for some markets and models. The new engine provides more power and torque with less fuel consumption and lower emissions.