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An inside look at the 2015 Mustang’s EcoBoost engine

By - January 21, 2014 – 11:39 am5 Comments | 4,283 views

2015 Ford Mustang EcoBoost Engine

While traditional performance enthusiasts might not consider any engine in the Mustang besides a V8, the big powertrain news for 2015 is the addition of a 2.3-liter EcoBoost engine. At this point Ford has been relatively quiet about specific details for the all new four-cylinder mill, only revealing that it will have more than 305 horsepower and more than 300 lb-ft torque. In fact, Ford hasn’t even released a real photo of the EcoBoost engine (or any engine in the 2015, for that matter).

However, keen-eyed visitors to the Ford booth at the Detroit Auto Show might have spotted a cutaway version of the Mustang’s 2.3-liter EcoBoost engine, highlighting the overall design and new technologies used. We were able to photograph the engine in detail, and we’ve posted some of the highlights below.

2015 Ford Mustang EcoBoost Engine

Ford has promised that the EcoBoost engine in the Mustang will provide more usable horsepower and torque than the base V6. “This EcoBoost engine delivers where a Mustang driver expects it to, with a broad, flat torque curve that pours out when you stand on it for easy passing or hustling down a twisty road,” said Dave Pericak, Ford Mustang chief engineer.

A high-pressure die-cast aluminum cylinder block is used featuring a structural ladder frame and integrated main bearing caps to ensure longevity and durability.

Ford implemented a lightweight composite intake manifold that both saves weight and provides excellent air flow to the cylinder head.

Along with the use of direct injection, the twin independent variable camshaft timing (Ti-VCT) allows the 2.3-liter turbocharged engine to produce more power and torque while remaining as fuel efficient as possible. The Ti-VCT allows the engine to retard the timing of both the intake and exhaust camshafts independently, particularly at low rpm, to improve both output and efficiency.

This is Ford's first use of a twin-scroll turbocharger system, which utilizes two separate inlets for exhaust gasses. The dual exhaust streams prevents turbo lag in the lower portion of the power band while improving top end output.

The integrated exhaust manifold improves efficiency as well, helping to move air quickly and eliminating lag from the turbocharger.

Durable forged steel connecting rods are used along with a forged steel crankshaft. The high strength 9.5:1 compression pistons feature a low-friction skirt coating and cooling jets for improved efficiency, output and reliability.

The 2015 Mustang's EcoBoost engine is efficient enough that it only needs oil changes every 10,000 miles, and the deep-sump aluminum oil pan ensures oil delivery even during spirited driving.

Photos © 2014 MustangsDaily.com


  • Andreas says:

    A good alternative for the daily driver! Powerful but fuel saving! Will test it when available and I’m courius on how it perform on the street in comparison to my 4.6 V8.

  • a.n.onimous says:

    Euro-box engine huh?Chuck in a Cossie engine,that’s what i say,let the euro-Ford people install a euro-lump with poke!

  • Humberto Hepp says:

    I like this option. Speccially if it runs better than the 6cil and with good fuel ratings while retaining nice accelerations. If it cost significantly less than the V8, it would be an option… Speccially when you consider that a 50hp plus would be easily attainable with a turbo engine with a simply remap and maybe a L&N air filter… Not to mention exhaust gases mods… I bet some will be arround 400hp soon and with a torque that could cought up on the V8 engines soon… it may be the best bang for the buck power…

  • Ed says:

    I’m sure the EcoBoost 4 will make good power…the problem I have is the Mustang experience requires not only power but the sound of a low throaty dual exhaust rumble. The 3.7 provides just enough rumble to be pleasing…the 5.0 just plain sounds awesome…I seriously doubt the 2.3 will sound like a muscle car at all.

  • Frank says:

    All I can say to the doubters is, think SVO !!! These cars were predecessors and held their own against the 5.0 . Yes I am biased, I own one. As for exhaust sounds, that is easily tunable these days and trust me when I say the dohc head gives a much different rumble.

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