Ford developing a small-displacement V6 engine

Article by Christian Andrei, on October 11, 2011

Earlier today we told you that if the labor pact between Ford and the UAW is ratified, the American manufacturer will green-light the production of the supercharged 5.8-liter V8 engine. Well, it appears that the good news keep coming as the UAW may also bring a small-displacement V6 engine. According to UAW, an industry leading small V-6 will be added to the Ford’s Lima, Ohio, engine plant at an investment of $400M.

Although Ford did not confirm anything, a spokesman agreed that this engine would make sense with firm’s downsizing scheme, says Caranddriver. Of course, when we talk about a small V6 don’t expect at a 1.8-liter engine… we are talking about a V6 in the range of 2.5 to 3.0 liters of displacement.

The output delivered by this engine would be in the area of 300 hp and 300 lb-ft of torque. The new engine could find its place in the range-topping Fusion, into the all-wheel-drive Fusion Sport model or, why not, into the Fusion ST. Still, don’t expect to see this engine in the next Escape, as this model will receive only four-cylinder engines.

The powertrain line-up under Ford’s Mustang is set to have turbocharging with the introduction of the new EcoBoost 2.3-liter engine. Developed specifically for the Mustang, this engine is projected to have fuel efficiency that is the best in its class and was designed to make sure that it meets what drivers want when it comes to performance.

Having an output estimated to be at least 305 hp with maximum torque at least 300 lb.-ft., this engine is clearly a Mustang powerplant. This engine is the latest to be a member of the company’s EcoBoost family of engines. It fully utilizes advanced technologies like turbocharging, twin independent variable camshaft timing, and direct fuel injection. All of these are done to make sure that both power and torque are enhanced while also improving fuel efficiency.

To ensure higher output, and even improved breathing, the company made sure to optimize the housing for the turbocharger and the intake manifold. "This EcoBoost engine delivers the healthy output that Mustang drivers expect regardless of the speed," said Scott Makowksi, EcoBoost powertrain engineering manager. "This EcoBoost engine might be small in displacement, but it delivers where a Mustang driver expects it with a broad, flat torque curve and great driveability under any conditions."

Since this is the first engine from Ford to have a twin-scroll low-inertia turbocharger, it allows for a faster boost while being able to enhance efficiency and reduce emissions. There is a cylinder head with an integrated exhaust manifold and this allows the pairs of cylinders, on the outside and inside, to be placed on each of the inlet passage and connected to the turbo charger. By having the exhaust pulses detached from the next cylinder during the firing order, it maximizes pulse energy while being able to remove any mixing losses to its turbine wheel.

With this, torque is delivered quicker -- an important feature especially during the passing manoeuvres or any other performance similar to those with a twin-turbo configuration. Another interesting feature is that since the exhaust ports have been separated, it ensures that exhaust valves are able to remain open for longer periods and hence lower any pumping losses. This in turn enhanced fuel consumption by as much 1%.

Topics: ford, engine

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