Ford has announced the new Focus ST is equipped with a turbo overboost feature which slightly increases power output.

Ford has announced the new Focus ST is equipped with a turbo overboost feature which slightly increases power output.

Originally listed at 247 hp (184 kW / 250 PS) and 265 lb-ft (360 Nm) of torque from its turbocharged 2.0-liter EcoBoost engine, the Focus ST now extends its torque curve from 3,000 rpm to 4,500 rpm for up to 15 seconds thanks to a new overboost feature - a first for an Ecoboost engine sold in North America.

According to Ford's calculations, this represents "up to 7.4 percent more output in the heart of the torque curve" as the specs now show the Focus ST to have 252 hp (188 kW / 255 PS) and 270 lb-ft (366 Nm) of torque.

"The turbo itself is specified for sustained, high-output performance, but they've programmed the car's computer to dial in more boost past 3,000 rpm to give it that extra something," says engineer Lisa Schoder, who is Marketing manager for Focus ST. "We limit peak turbo boost to maintain a wide margin of safety and durability over the life of the car," Schoder adds. "But overboost is cool in that it tweaks more acceleration through the turbo for brief periods for performance-hungry drivers."

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