Ford Focus ST increases acceleration through factory “overboost” turbo feature

Ford Focus ST increases acceleration through factory “overboost” turbo feature - Printable Version

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Ford Focus ST increases acceleration through factory “overboost” turbo feature - car fanatics - 06-11-2012 08:16 AM

Ford
Photo credit: Ford
June 11, 2012
By: CF staff

Ford Focus ST increases acceleration through factory “overboost” turbo feature that extends torque curve from 3,000 rpm to 4,500 rpm for up to 15 seconds

Turbo tuned to decrease response time and increase power throughout rev range

Ford confirms the Focus ST’s SAE-certified engine output of 252 horsepower and 270 lb.-ft. torque from efficient 2.0-liter EcoBoost® engine with low-inertia turbocharger

Pilots might call it the Focus with afterburners. Everyone else will call it really fast.

The new Ford Focus ST features a four-cylinder, direct-injected turbocharged engine with an “overboost” feature that extends peak torque for up to 15 seconds at a time.

The gains extend the peak torque from 3,000 rpm to 4,500 rpm, whereas other EcoBoost® engines would hit peak torque and begin to drop off at these higher engine speeds. This is the first overboosted Ford EcoBoost engine sold in North America.

Ford engineers made sure the overclocked EcoBoost 2.0-liter would have a very robust cooling system. “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.”

Among the more visible options will be the Tangerine Scream metallic color that will be offered exclusively on Focus ST, as well as race-inspired Recaro® seats with matching color accents.

Ford is offering drivers who preorder a Focus ST the GoPro® HD Hero2 Motorsports Edition camera pack upon delivery. Already a staple in the motorsports and action sports communities, GoPro is the ideal camera to capture a spirited drive or Focus ST track day. The first 1,000 presale orders placed between May 1 and Aug. 20 are eligible for the GoPro HD Hero2 camera. The cameras will be sent after vehicle delivery.

RE: Ford Focus ST increases acceleration through factory “overboost” turbo feature - McLovin - 06-11-2012 09:53 AM

How cool is that rockon

RE: Ford Focus ST increases acceleration through factory “overboost” turbo feature - G8mike - 06-11-2012 10:00 AM

Impressive numbers - this thing should be mighty quick.

RE: Ford Focus ST increases acceleration through factory “overboost” turbo feature - lengnert - 06-11-2012 10:25 AM

The ST is going to be one quick car.

I am sure it will be plenty fast enough regardless of getting into the "afterburner".

RE: Ford Focus ST increases acceleration through factory “overboost” turbo feature - Speed Devil - 06-11-2012 11:12 AM

Useful for those moments that Vtec might kick in : tounge

RE: Ford Focus ST increases acceleration through factory “overboost” turbo feature - jspookss - 06-11-2012 03:29 PM

Oh shit over boost just kicked in yo!

RE: Ford Focus ST increases acceleration through factory “overboost” turbo feature - RougeRiver - 06-11-2012 03:37 PM

From the graph, it looks like VTEC kicks in at about the time overboost leaves the room and VTEC behind - 275lbs @ 2500 vs 27.5 @ 2500: tounge

RE: Ford Focus ST increases acceleration through factory “overboost” turbo feature - nell_z - 06-11-2012 04:12 PM

Take this, with an electric supercharger, and call it the Ford Focus ST-R badass

RE: Ford Focus ST increases acceleration through factory “overboost” turbo feature - McLovin - 06-11-2012 07:32 PM

Power is plenty, what is most impressive is what one reviewer referred to as a chassis so good, it appears "purpose built."

RE: Ford Focus ST increases acceleration through factory “overboost” turbo feature - Speed Devil - 06-11-2012 10:02 PM

jspookss;211710 Wrote:Oh shit over boost just kicked in yo!

[Image: japan-taxi-crash-vtec-just-kicked-in-yo.jpg]