The Subaru EJ20 engine, celebrated for its trustworthiness and engineering, includes different horsepower ratings depending upon the design and calendar year.
Subaru has utilised this current Edition throughout all WRX designs since early 1992. The engine cylinder head is set up with hydraulic lifters instead of the rockers arms Utilized in the earlier EJ20G models.
The timing belt is really a critical part in the EJ20 engine, and diligent attention to its servicing will help avoid high-priced repairs and extend the engine’s everyday living.
The exhaust is completely diverse/incompatible Together with the USDM WRX/Sti, all of the way in the header towards the downpipe. It might get replaced by a USDM exhaust, the USDM does bolt up to your block.
In its most elementary By natural means aspirated kind, the EJ20 generates close to a hundred and fifty horsepower. However, when turbocharged and intercooled in products much like the WRX STI, it could make upwards of 300 horsepower.
More mature versions observed comparable freeway outcomes with town mpg scores as low as 18. It really is certainly not the worst, but it isn't phenomenal for just a four-cylinder engine.
Maybe the piston rings unsuccessful; which is why this happened to start with. Loose internal factors could also result in this. Subaru suggested switching the oil in time and make use of the proposed oil.
This was the main EJ20 turbo to appear in Australia with AVCS and an operational intercooler drinking water spray method. There were no mechanical changes in subsequent STi types till the introduction with the 2.5-litre engine while in the MY06 STi.
By growing piston stroke and lowering piston bore, Subaru aimed to cut back emissions and make improvements to fuel financial state, even though increasing and broadening torque output as compared to the EJ-series.
EJ203 was developed from 2002 to 2009 and was set up only on the 2nd era Forester along with the fourth Legacy. This unit check here differed from its predecessors via the presence of the electronic throttle.
one. EJ20 knocking audio. Very often we are able to hear knocking sounds during the 4th cylinder. It is the most popular cylinder and it is actually cooled worst of all, hence the piston starts to knock there. To start with the engine knocks at cold start, and then continuously.
piston oil squirters was utilized until eventually mid 1994. Accompanied by Open up-deck block Outfitted with piston oil squirters was utilised incredibly small period of time, Accompanied by Open-deck block from 1995 right up until mid 1996 when the 1st EJ20K WRX engines came out.
The EJ20 engine debuted while in the early nineteen nineties, quickly establishing itself being a performance powerhouse. With its horizontally opposed pistons, this flat-4 boxer engine has a unique rumble that Subaru enthusiasts have arrive at adore.
If the bug-eye visual appeal from the early GD/GG-sequence WRX was dropped within the MY03 facelift there have been also modifications beneath the bonnet. In Australia, the MY03 is the first non-STi WRX to make use of the AVCS cam timing system. The compression ratio can be elevated from eight to nine:1 for improved drivability. This leads to an extra 6kW (168kW at 6000 rpm) and torque improves by 3Nm (there’s 300Nm at 3600 rpm). Ninety-8 RON unleaded is recommended for this engine and, for The very first time, a sequential automated transmission was launched.