How much HP can stock STI handle?
They will hold up to 400 whp (again as shown in our PPIHC car), but if you want to push up to or beyond that power level, a set of aftermarket H-Beam rods would be recommended.
What car has a ej20 engine?
Subaru WRX STI
In the U.S., the only vehicle powered currently by the EJ engine is the Subaru WRX STI, which uses a 2.5-liter turbocharged flat-four with 310 hp and 290 lb-ft of torque paired to a six-speed manual.
How old is the EJ engine?
1989
The Subaru EJ engine was a series of four-stroke automotive engines manufactured by Subaru. They were introduced in 1989, intended to succeed the previous Subaru EA engine.
Is the FA Motor better than the EJ?
While the EJ motors remain sensitive to knock conditions and tuners do everything in their power to prevent detonation, the FA motors are even more sensitive and the challenges of direct injection have made avoiding knock much harder.
Is EJ20 a turbo engine?
EJ20 is a 2.0L 4-cylinder, petrol boxer engine that appeared first under the bonnet of Subaru Legacy. EJ20 became a popular engine due to its turbocharged models. EJ20G turbocharged was the first engine to use oil nozzles, low compression pistons, a closed deck block, and two DOHC heads with two camshafts.
What kind of engine does Subaru use in the EJ20?
The EJ20 engine is the most difficult to successfully make big power with, and also one of the least reliable engines Subaru has manufactured. For this reason, we build all of our EJ20’s as a hybrid setup: Using the EJ20 cylinder heads on an EJ25 short block/crankcase.
What is the EJ20 hybrid setup?
For this reason, we build all of our EJ20’s as a hybrid setup: Using the EJ20 cylinder heads on an EJ25 short block/crankcase. The two are compatible using special thicker gaskets, with no modifications needed to the heads themselves. This setup allows you to make big power reliably.
How long does it take to build a Subaru EJ engine?
After selling that car, Brandon began the build of this naturally aspirated Subaru EJ engine, which he refers to as digging a gigantic rabbit hole to feed his obsession for perfection. “It has been three years in the making and hundreds upon hundreds of hours,” Loveless says.
Is the EJ25 engine coming back to the WRX?
According to our source, the U.S.-spec 2.5-liter boxer turbo powered WRX, featuring the EJ25 engine, will remain in service until the next-generation WRX Series is introduced after 2021. Now, let’s get back to the legendary Japan-spec EJ20.
