Fiesta ST gets three-cylinder engine

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Fiesta ST gets three-cylinder engine

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The third-generation performance model will also get cylinder deactivation to help save fuel…

Ford has announced that its new Fiesta ST will be powered by a three-cylinder, 1,5-litre EcoBoost engine that features cylinder deactivation. The model is scheduled to be previewed next month at Geneva Motor Show and will be launched next year.

According to a statement released by the company, the car will be the first from Ford Performance to utilise a three-cylinder power plant and the first to feature selectable driving modes. In addition, it will incorporate Electronic Sound Enhancement (ESE) to amplify the engine’s sound.

“Available from launch in early 2018 in both three-door and five-door body styles, the third-generation Fiesta ST will be offered with a greater variety of interior trim and personalisation options than before, with bold and distinctive exterior styling that includes a unique race-car-inspired mesh grille and exclusive 18-inch alloy wheels,” the statement says.


2402fordfiestast5Quoting Joe Bakaj, Vice-President of Product Development for Ford of Europe, the statement adds: “Our next generation Fiesta ST is true to the philosophy of delivering cutting-edge technology to enhance every facet of the responsive Ford Performance chassis and powertrain.

“With selectable Drive Modes and an all-new EcoBoost engine delivering an unprecedented combination of performance and fuel-efficiency, the new model will deliver the most versatile, fun, engaging and rewarding Fiesta ST driving experience yet.”

In the interests of combining performance with fuel efficiency, the all-new engine – which is said to produce 147kW and 290Nm, capable of propelling the car from zero to 100km/h in 6,7 seconds – incorporates technology such as turbocharging, high-pressure fuel injection and twin-independent variable cam timing.

According to Ford, the design delivers naturally high torque at low rpm, with performance boosted by a new turbocharger that uses an optimised turbine configuration to build boost pressure faster and minimise lag for a more responsive driving experience.

“A new combination of port fuel injection and direct fuel injection technology helps to deliver high power and responsiveness alongside reduced CO2 emissions, with a particular increase in fuel efficiency under light engine loads.”

The statement adds that fuel-saving cylinder deactivation technology – similar to that used in the 1,0-litre EcoBoost unit – automatically stops fuel delivery and valve operation for one of the engine’s cylinders in conditions where full capacity is not needed, such as when coasting or cruising with light demand on the engine.

“The technology can disengage or re-engage one cylinder in 14 milliseconds – 20 times faster than the blink of an eye – to seamlessly deliver full performance on demand,” says Bakaj.

The all-aluminium engine also features an integrated exhaust manifold that improves efficiency by helping the unit to reach optimal temperatures faster and delivering torque more rapidly by minimising the distance exhaust gasses travel between cylinders and turbocharger. Gas particulate filter technology to reduce soot emissions has also been incorporated in the unit.


2402fordfiestast2Ford says selectable drive modes add more versatility to the driving experience, enabling the car’s responses to be tailored to suit scenarios from school run to the race track:

  • In normal mode, engine mapping, traction control, electronic stability control (ESC), ESE, exhaust sound and electronic power assisted steering (EPAS) are configured to deliver natural responsiveness and a connected feel;
  • In sport mode, engine mapping and throttle pedal response are sharpened, and EPAS settings adjusted to deliver more feedback and finer control for fast road driving. The active noise control valve opens and ESE is adjusted to intensify the sporty exhaust note and engine noise within the cabin;
  • In track mode, all vehicle dynamics features are tuned for the fastest possible lap times, traction control is disabled and ESC interventions are set to wide-slip mode for hard circuit driving .

“The Ford Performance-tuned chassis will be supported by enhanced Torque Vectoring Control technology that improves road holding and reduces understeer by applying brake force to the inside front wheel when cornering,” says the statement.

“Three-mode ESC will enable drivers to choose between full system intervention; wide-slip mode with limited intervention; and full system de-activation.”


2402fordfiestast3Further, the model will offer more personalisation options than before. “Customers will be able to choose from a range of trim elements for the gear lever, steering wheel, door pulls and decorative dashboard spear, and select from distinctive styling packs.

“The interior will feature supportive Recaro seats and a flat-bottomed steering wheel, while exterior colour options will include new Liquid Blue paintwork.”


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