In took a protracted although but the dual-turbo EJ20 engine emerged in Australia onboard the MY02 Liberty B4. The freedom B4 has precisely the same mechanical configuration as the Japanese-spec Model but, all over again, the engine mapping is detuned to suit 98 RON fuel. Output is 190kW and 320Nm - with 278Nm readily available from just 2000 rpm. A five-pace handbook or even a 4-velocity auto was available. Curiously, the B4 twin-turbo never acquired thoroughly set up from the Australian Market and was axed subsequent the MY03 Model. Replacing the B4 is the Liberty GT sedan and wagon which ended up released in late 2003 (for your 2004 design yr). The Liberty GT reverts back again to one turbo procedure along with AVCS cam timing Command as well as a 9.five:one static compression ratio. Additionally, there are several inside improvements. Output isn’t as solid as being the superseded B4 – however it’s not far off. The one turbo Liberty GT pushes 180kW and 310Nm in a low 2400 rpm (just 10kW and 10Nm down to the B4).
The EJ20 isn’t just another engine; it’s an important chapter in Subaru’s heritage. It represents a philosophy that embraces both of those efficiency and practicality.
The Subaru FA engine sequence was derived later from your FB, but The 2 engine people share only some typical parts. In 2020, Subaru introduced the CB18 engine with enhanced performance to be successful the FB in several applications.
Compared to other engines, the EJ20 may perhaps have to have far more attentive care, significantly with its acknowledged weak spots like The top gasket. But with correct notice and standard services, it benefits proprietors with dependability that may outlast lots of its contemporaries.
The EJ20X and EJ20Y engines had an aluminium alloy cylinder head with cross-movement cooling, double overhead camshafts (DOHC) per cylinder lender and 4 valves for each cylinder that were actuated by roller rocker arms.
Robert Cianflone/Getty Probably the most exceptional here attribute of your EJ20 engine is its seem. The signature "Subie rumble" comes from a combination of the engine's layout and also the unequal-length exhaust manifold assembly to the turbocharger.
Turbocharged versions with the EJ20, like Those people present in the WRX and STI products, arrive equipped using an intercooler to decrease the air ingestion temperature, therefore growing density and allowing for For additional energy.
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Flat four EJ251 The EJ251 was the very first Model with the 2.5L solitary overhead cam (SOHC) engine line by Subaru for that US marketplace. The EJ251 was changed via the EJ253 in several types due to its improved cooling to help in head gasket daily life and improved engine administration and sensors. The EJ251 usually seasoned head gasket failures in the form of inside channel breaches or exterior fluid leaks on account of the use of a single layer coated gasket, vs the Multi-Layer Metal (MLS) gasket Utilized in afterwards versions.
A: Critical signs or symptoms incorporate overheating, white smoke in the exhaust, and oil or coolant leaks. A professional should really Check out any suspicion of the failing head gasket quickly.
Compared with most 4-cylinder engines, it has a reduced rumble that ascends into a growl while you make your way with the RPMs. Whenever you listen to a Subaru engine, there isn't any doubt that you are hearing a Subaru engine. They are identifiable from miles away.
The EJ20X and EJ20Y engines are open up deck styles where the cylinder partitions were supported in the three and 9 o’clock positions.
For anyone who is knowledgeable about the WRX, you've got probably listened to every thing from blown head gaskets to ring land failure. Do these implement to the EJ20? Let's Look into the advantages and disadvantages of the historic engine.
If the bug-eye physical appearance of the early GD/GG-sequence WRX was dropped in the MY03 facelift there were also variations under the bonnet. In Australia, the MY03 is the main non-STi WRX to utilize the AVCS cam timing procedure. The compression ratio is additionally elevated from eight to nine:one for enhanced drivability. This brings about an additional 6kW (168kW at 6000 rpm) and torque increases by 3Nm (there’s 300Nm at 3600 rpm). Ninety-eight RON unleaded is recommended for this engine and, for The very first time, a sequential automated transmission was launched.