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Jun 27, 2010 · So far my options are: Buy used high mileage WRX wagon and rebuild (10k or so for car + 5 to 6k for rebuild and purchasing of necessary components) Buy low mileage un-tuned WRX wagon (18 to 22K) Buy 2.5 RS shell and order the EJ257 motor plus tranny and wiring harness for a swap.
- The Engines in The WRX
- The Pros and Cons
- Building WRX HP
- Conclusion
When the Impreza WRX debuted, Subaru’s EJ four-stroke engine family was selected as the powerplant. All engines of this series are 16-valve horizontal flat-fours with configurations available for SOHC or DOHC. Both naturally aspirated and turbocharged versions were available, however, the EJs for the WRX are all turbocharged and DOHC. The first WRX...
According to engine builders like Anning, who work on WRX engines regularly, the EJ205 is a very stout and strong engine, even in stock form. In fact, Anning says this variant has increased durability over the EJ257. “The EJ205 is down on displacement, which is a bit of a con because you lose a little bit of that torque, but the power delivery is q...
In stock, factory form, WRX and STI engines are no slouches. They are good, reliable powerplants that pack a punch. Because that’s the case, they’re also prime options for high-end performance applications, which means more horsepower. The different engine variants clearly have their pros and cons, but they all can be built up to handle a great dea...
Clearly, WRX and STI Subaru engines continue to be top Japanese tuning platforms, and it doesn’t appear that will end any time soon. The WRX and STI are both summer performance cars that are equally happy on the street as they are on the track or in rally racing. Since the WRX has been around for 20 years here in North America, people have really f...
If you are serious about modding you should do it all at once for a very safe 400whp 91-93 octane build. Since you are in Massachusetts I would suggest Kinetics in NH or The Subaru Shop in RI. Brentunning is concentrating on other platforms like Mikey in CT.
Not much more expensive, and can run 500hp if you wanted too. Don’t get a used motor unless you know what it’s come out of. You can probably get a built block (nothing crazy) for very similar to an oem block. That’s definitely a concern when it comes to used.
The main thing you'd want to avoid is head damage. IAG blocks are surprisingly cheap, but the heads cost more. But you'd also want to consider replacing the turbo & oil cooler, which can hold on to metal pieces and fry your new motor. It's a slippery slope, but most Subaru owners fall down it eventually.
Dec 17, 2013 · Quickest solution is just to get another long block, but then you have an rod bearing spinning setup you had before. Also, realize that if you do forged pistons you will hear a knock when you start the car till the pistons heat up. Totally normal & will go away with temperature.
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Aug 4, 2022 · Thankfully, that was deliberate, as Redline Rebuild host Davin has stripped the WRX’s flat-four engine to its component parts and begun to clean off years of gunk. How much is your car to insure? Find out in four easy steps.
