What is the Subaru 2.5 engine specs?

Subaru 2.5 Engine Specs
The Subaru 2.5 engine is a 16-valve flat-four boxer naturally-aspirated and turbocharged engine with a 2.457L displacement. Depending on the year, make, and model it appears in, the engine’s horsepower ranges from 155 to 172.6 and 140 to 170 lb.-ft. The engine features a 99.5 mm bore and a 79 mm stroke. The compression ratio ranges from 9.5:1 to 10:1 for naturally aspirated versions and 8.0:1 to 9.5:1 for turbocharged versions. The Subaru EJ25 engine is part of the EJ family of engines and shares most of its layout and internals with other popular engines like the EJ20 and EJ22T. The EJ25 engine has been used in various Subaru models, including the Forester, Outback, Legacy, and Impreza WRX STI, with power ranging from 155 hp to 341 hp and torque from 140 lb-ft to 330 lb-ft .
The Subaru Legacy GT (till 2009) had a VF46 turbocharger with a maximum boost pressure of 13.8 psi (0.95 bar), producing 250 HP at 6,000 rpm and torque of 339 Nm at 3,600 rpm. The 2009+ Legacy GT had a VF45 turbocharger with a boost pressure of 12.5 psi (0.87 bar), developing 265 HP at 5,600 rpm and engine torque of 350 Nm at 2,400 rpm. The 2007+ Subaru Impreza WRX STI III received a changed EJ257 engine with an increased compression ratio to 8.2 and a variable valve timing system Dual AVCS on intake and exhaust.
The 2024 Subaru Outback lineup features a pair of flat-four-cylinder engines: a 182-hp 2.5-liter standard engine and a 260-hp turbocharged 2.4-liter optional engine. Both engines mate to a continuously variable automatic transmission (CVT) that mimics an eight-speed gearbox to mitigate annoying engine drone. All Outbacks have standard all-wheel drive, which is a Subaru staple.

What is the most reliable Subaru engine?

Considered “bulletproof,” the EJ22 is often called Subaru’s most reliable engine.

Is the Subaru 2.5 L engine a good engine?

The Subaru 2.5 Turbo Engine is a reliable and powerful engine that has proven itself to be a reliable choice for many car owners. However, as with any engine, it is not without its faults. Common issues include oil starvation, coolant leaks, and head gasket failure.

What is the difference between the Subaru 2.5 L and the 2.5 i?

2.5i is essentially a trim level. It implies the 2.5 liter (or 2.5L) naturally aspirated engine is used.

What rating of gasoline is best for Subaru with 2.5 liter engine?

With the exception of performance vehicles, all other Subaru models are designed to run on 87 octane. Over the course of 15,000 miles per year, using regular 87 octane in a Subaru that doesn’t require a higher level can save you hundreds in additional fuel costs.

Is the 2.5 L Subaru engine Turbo?

2.5 liter 4 cyl DOHC turbocharged engine w/ 305 hp and 290 lb-ft torque [STI]

What is the specs of the Subaru 2.5 engine?

2.5L SUBARU BOXER® Four-Cylinder Engine
With the assistance of a Lineartronic® CVT (continuously variable transmission), this engine offers 182 horsepower, 176 pound-feet of torque, and a smooth driving experience.

What is the most common problem with the Subaru engine?

Together the head gasket is the most common failure on subarus. Let’s talk about the elephant in the house. And that’s subaru’s head gasket failure you can see here this is a multi-layer steel head

What is the longest lasting Subaru engine?

EJ22. Considered “bulletproof,” the EJ22 is often called Subaru’s most reliable engine. It’s a 2.2-liter four-cylinder boxer engine, and the estimated life of the EJs is over 250,000 miles, with many drivers reporting over 500k.

What is the towing capacity of the 2.5 L Subaru engine?

2,700 pounds
The 2.5L engine has enough power to help you tow up to 2,700 pounds. You can maximize towing capacity by climbing the trim ladder and upgrading to the turbocharged 2.4L engine, which offers an impressive 3,500-pound towing capacity.

How long will the 2.5 I Subaru engine last?

between 250,000 and 300,000 miles
Generally speaking, a Subaru 2.5 engine has the ability to run between 250,000 and 300,000 miles before needing any kind of significant auto maintenance or repair. Since most drivers average around 14,000 miles per year, this would mean that a Subaru 2.5 engine could conceivably run for over two decades.