Unpacking the Power of Subaru’s 2.0L Turbo Engine: The Ultimate Guide to Performance and Reliability

Subaru has been a household name in the automotive industry for years now, thanks to its reliable and high-performing vehicles. One of the reasons behind this success is its unique engine design – the Boxer engine. In this article, we’ll be delving into one of the most powerful engines Subaru offers – the 2.0L turbo engine. We’ll be exploring its specifications, performance characteristics and capabilities, applications, as well as addressing potential concerns and issues.

History and Development of Subaru Engines

Subaru’s engines have been described as robust, with a unique design that sets them apart from other engines in the market. Over the years, Subaru has refined its engine technology to make them more efficient, powerful and reliable. One of the key features of Subaru’s engines is the Boxer engine design that horizontally opposes the pistons, which supports direct injection technology while minimizing vibration and engine noise.

The 2.0L turbo engine is part of Subaru’s FB engine series. This engine series was introduced in the year 2010 with the dual intent of more power and increased efficiency. It utilizes Subaru’s Direct Injection Active Valve Control System and its Camshaft Timing System to produce the necessary power, with less fuel consumption and emissions.

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Design and Specifications of the 2.0L Turbo Engine

The 2.0L turbo engine is a turbocharged, four-cylinder Boxer engine with a bore-stroke ratio of 86mm x 86mm. It has a 16-valve double overhead camshaft configuration and features direct injection technology, allowing fuel to be injected directly into the combustion chamber. The engine’s turbocharger is a twin-scroll type with an air-to-air intercooler, designed to improve overall engine efficiency.

This engine produces 268 hp at 5,600 RPM and 258 lb-ft of torque at 2,000-5,200 RPM. It utilizes a 6-speed manual transmission or a Lineartronic Continuously Variable Transmission that simulates the feel of a manual transmission while providing automatic convenience.

Performance Characteristics and Capabilities of the Engine

The 2.0L turbo engine is a powerful engine that can deliver breathtaking performance. This engine can accelerate the Subaru WRX from 0 to 60 in 5.2 seconds and the Subaru Forester from 0 to 60 in 6.3 seconds.

The engine’s power is not just for speed alone but also for smooth operation. The twin-scroll type turbocharger produces a quick throttle response due to the excellent airflow. This ensures a smooth and uninterrupted flow of power, which ultimately creates an unforgettable experience for the driver.

Applications of the Engine in Different Subaru Models

The 2.0L turbo engine can be found in specific Subaru models, including the Subaru WRX and the Subaru Forester. The engine provides these models with a sporty character and more power than most of their competitors in the market. The WRX and Forester are known for their excellent handling, thanks in part to Subaru’s Symmetrical All-Wheel Drive system, which is also partly empowered by the 2.0L boxer engine.

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Potential Issues or Concerns with the Engine and How to Address Them

Subaru’s 2.0L turbo engine is reliable, but like any other engine, it is not immune to potential issues, especially when maintenance is not performed regularly. Concerns like engine sludge or carbon buildup can affect engine performance and lifespan but can be mitigated by using premium fuel and performing regular oil and filter changes.


How does Subaru’s Boxer engine differ from a traditional engine?

Subaru’s Boxer engine features horizontally-opposed pistons, which opposed to a V or inline engine’s vertically-stacked pistons. This design supports direct injection technology, minimizing vibration, resulting in a smoother and more efficient engine.

Why do some Subaru models use turbocharged engines?

Subaru has utilized turbocharged engines in their vehicles to increase power and improve driving performance. The 2.0L turbo engine is one of the most powerful engines that Subaru has ever produced, providing excellent performance and efficiency.

What kind of transmission is suitable for the 2.0L turbo engine?

The 2.0L turbo engine can be mated with either a 6-speed manual transmission or a Lineartronic Continuously Variable Transmission (CVT).


Subaru’s 2.0L turbo engine is one of the most powerful engines produced by the automaker. Its unique Boxer engine design and turbocharger technology make it efficient, reliable, and a great choice for those who enjoy high-performance vehicles. The engine is an excellent choice for the Subaru WRX and the Subaru Forester. Regular maintenance can help prevent potential issues, ensuring longevity of the engine.

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Peter Banks

With years of experience as a professional mechanic and Subaru specialist, Peter is one of the most respected members of our team. He's written several articles on Subaru maintenance and repair, and his advice and tips are always practical and helpful. When he's not working on cars, he enjoys cooking and trying out new recipes.

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