The current, second-generation Subaru boxer four-cylinder engine has been in production for over two decades, so needless to say a replacement has been a long time coming. And now it’s here, with Subaru completely redesigning its staple powerplant to help the company move forward in an increasingly fuel-efficiency-focused world.

Available in both a 2.o-liter and 2.5-liter displacement, at first it seems there’s little new with this four-cylinder engine, but it’s the details that matter most. With a new bore and stroke, the porting has been redesigned, while the pistons are lighter and the con rods help reduce internal friction. Also included is Subaru’s AVCS (Active Valve Control System) variable valve timing system. Subaru claims these advances have resulted in a 10 percent improvement in fuel economy.

Another benefit of the new design are separate cooling ducts for the block and heads.

No performance numbers have been released but Subaru claims the new design makes for advances in driving performance with, “acceleration in all speed ranges” while stating that the new engine has been designed to work with advancing technology – likely meaning it’s capable of featuring a direct-injection system, as well as adaptable to a hybrid setup.

The new generation boxer 4-cylinder will debut in the Forester and will then go on to replace the 4-cylinder boxer powerplants in the rest of the Subaru lineup.

Official release after the jump:

Continue Reading…

For the first time in two decades, Subaru is expected to debut an all-new 4-cylinder boxer engine later this year, which will be used in most models in its lineup to help improve fuel economy.

According to a report by Japan’s Nikkei business daily, the new engine will be between 2.0- and 2.5-liters with improved fuel economy by roughly 10 percent and will be used in everything from the Legacy to the Impreza. First, however, it will launch in the Forester. The new engine is also slated to get a CVT transmission – a notable improvement over the 4-speed auto-box in the Forrester and Impreza.

Subaru has confirmed that a new engine is being prepped to debut but no details have been provided.

It’s possible that the new engine could use both direct-injection and a start-stop system, two technologies that were showcased on the Hybrid Tourer Concept – a hybrid model that Subaru unveiled at last year’s Tokyo Auto Show. Subaru is also expected to deliver a hybrid model in 2012 based on an existing vehicle.

[Source: Automotive News]

Created to showcase the potential future of Subaru designs, the Legacy Concept was unveiled at the North American International Auto Show (NAIAS) in Detroit. This concept comes exactly 20 years after the Subaru Legacy – the company’s most successful model – was first brought to market.

Strong and powerful lines make up the general design of the vehicle and give it a more resounding presence. The “Ultimate Silver” color helps to highlight the different features – especially the large fenders.

Sharp angles are everywhere on the Legacy Concept with large air ducts up front, rectangular exhaust pipes and chunky five-spoke wheels.

A new headlight design, featuring LED bulbs in both circular and stacked rows, is similar enough to the current headlight design – a sign that this aspect of the concept is likely to be carried over to the upcoming production model.

In terms of a drivetrain/powertrain combo, the Legacy Concept features Subaru’s famous Symmetrical All-Wheel Drive system and a 3.6-liter Boxer engine.

Inside, the cabin features touch screen controls and an interior designed for four adults.

Subaru Legacy Concept:

For more on the Subaru Legacy Concept see the official release after the jump:

Continue Reading…