Home » Unique anti-stall feature in 2016 Focus RS explained

Unique anti-stall feature in 2016 Focus RS explained

by DrivingEnthusiast

2016 Ford Focus RS - Geneva reveal (16)

The innovative features keep coming for the 2016 Focus RS. This time it’s “stall recovery”, a feature of start-stop technology, where if the driver stalls the car all that has to be done to restart the engine is to push the clutch back in. This should be helpful in fast driving such as autocross or drifting.

Ford also confirms again in this press release the final HP and torque: 350 and 350. This is a terrific balance of HP and torque that is class leading and flexible across a wide rev range. The nearest technical competitor is the Mercedes CLA45 AMG 2 liter turbo, with 355 HP and 332 lb-ft torque – not that a Mercedes with a base price of $49,425 is a competitor. But that price also includes a 7-speed double-clutch transmission, which the Focus RS doesn’t offer, and which helps the CLA45 AMG out-accelerate the Focus RS to 60 MPH. On the other hand, the Mercedes doesn’t offer a torque-vectoring rear differential and therefore can only shift torque fore/aft. We’re looking forward to a comparison test next spring, hopefully testing the Focus RS against thefinal Mitsubishi Evo (which also has a torque-vectoring rear differential), the Subaru STi (the king of understeer), the Golf R (stuck with an old-fashioned – and much cheaper – Haldex rear differential that can only move torque fore/aft), and the Mercedes CLA45 AMG .

Don’t miss our Pintertest board – where we have 60 Ford ST & RS images along with another 1200 images for driving enthusiasts.

Ford Press Release follows:


Focus RS Engineers Drop the Hammer: Hot Hatch Buyers to Get Monstrous Output of 350 Horsepower, 350 Lb.-Ft.

  • Unique 2.3-liter EcoBoost® engine powering all-new Focus RS certified at 350 horsepower at 6,000 rpm on way to 6,800-rpm redline
  • Exclusive Focus RS turbo makes peak boost of 23.2 psi, with peak torque certified at 350 lb.-ft. at 3,200 rpm
  • Innovative Focus RS feature restarts engine for drivers in the event of a stall

DEARBORN, Mich., Oct. 12, 2015 – The unique EcoBoost® engine in the all-new Focus RS will produce 350 horsepower – far exceeding original estimates of 315 – along with 350 lb.-ft. torque.

And yet even with all that torque, the manual-only hot hatch will be especially forgiving in the event a driver stalls the engine, as Focus RS will debut with a trick feature called stall recovery. In other words, there will be no need for drivers to manually restart the engine or move the gear selector to neutral as the innovative technology allows the driver to simply push the clutch back in after a stall and the engine will restart.

“We knew we wanted to put start-stop technology on the RS,” explained Tyrone Johnson, engineering and vehicle manager, Ford Performance Europe. “So we said, ‘What if we went one step further, and controlled for engine stall at launch using the same technology?’ Well, that’s exactly what we did and it’s just as fast as our start-stop technology.”

The monster output the Focus RS engine achieves is due to its all-new low-inertia twin-scroll turbocharger with a larger compressor wheel that delivers more airflow and power throughout the rev range. Peak turbocharger boost is 23.2 psi.

Backing up this increased output is a large intercooler to maximize charge density. Air itself is delivered through a low-restriction intake manifold on the front end with a high-performance exhaust. The system includes an electronically controlled valve that optimizes back pressure and exhaust volume level.

Stout, high-tensile cast-iron cylinder liners are used to enhance the robustness of the engine, while a high-performance head gasket brings improved thermal capability.

Additional space created in the front of the car allowed engineers to deploy a larger radiator than what’s used on other Focus models for enhanced cooling.

Despite the engine’s high output of 152 horsepower per liter, RS engineers tuned this EcoBoost to deliver right off idle all the way on up to a free-spinning 6,800 rpm, with an especially chunky midrange power delivery.

Focus RS is the latest car to be unveiled as part of a new golden age of Ford Performance. The plan calls for bringing more than 12 high-performance vehicles to market worldwide through 2020.

Developed by a small team of Ford Performance engineers in Europe and the United States, the third-generation Focus RS follows on the heels of the much-loved models launched in 2002 and 2009. The 2016 Focus RS is the 30th car globally to wear the vaunted RS badge, joining such legendary models as the 1970 Escort RS1600, the 1984 mid-engine RS200 Group B rally car, 1985 Sierra RS Cosworth and 1992 Escort RS Cosworth.

Production of Focus RS with 2.3-liter EcoBoost begins later this year.

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