After it was confirmed that the turbocharged Subaru BRZ won’t arrive in the foreseeable future, we now get some idea of what type of power the model will later offer. The first turbocharged variant of Subaru’s 2.0-liter, FA-series flat-four engine – the naturally aspirated version that powers the BRZ and its Toyota/Scion brethren – has been tested on the renewed Japanese-market Legacy sedan and wagon.
The turbo FA20 generates 296 hp and 295 lb-ft of torque. When used in the JDM Legacy, the engine is bolted to Subaru’s CVT, probably for better fuel-economy. It’s expected that a turbo BRZ will be equipped with a proper manual transmission and an auto that’s comparable to what it presently uses.
The new turbo FA comes with Subaru’s own direct-injection setup. This is very different from the BRZ’s Toyota-derived direct- and port-injection heads.
The 2013 BRZ is already impressive with its rear wheels offering 200hp but with 300hp, the fun factor just got higher. If we put aside the uncertainty with the Turbo BRZ, it’s likely that this engine will be available within one or two years inside the next-generation WRX and STI.
It has been announced previously that the sporty models will be powered by a turbocharged iteration of the 2.0-liter FA motor and also that the STI’s engine will offer higher than 300hp. The 2.5-liter turbo in the current 265-hp WRX and 305-hp STI will be replaced by the new 2.0-liter turbo four.
However, the idea of a 296hp WRX and a more powerful STI seems outstanding. The chances are that the WRX will produce somewhat less while the STI generates slightly more. The obvious reason for Subaru’s decision for the smaller 2.0-liter turbo to power the WRX and STI is fuel economy. The 2.5-liter being used now is not quite frugal enough. [source: Caranddriver]