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      01-05-2012, 10:56 AM   #299
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Originally Posted by GoingTooFast View Post
First you state that they even have managed to do a '2.5L STi swap' with 'a ton of modification to make that work, FMIC included with some expensive plumbing', then immediately afterwards you state that Subaru says there's no room for FI in a smaller 2.0L engine?!?!?

Please, show me where Subaru have ever said that.

I'm really hoping that they don't put a turbo in there... I rather wanted to see a supercharger!
S/C I agree might be possible. And what I meant was; the drift team probably changed enough to make it fit that the car would likely not pass safety/homologation/etc.

As for Subaru saying a turbo won't fit.. take a look:

"The company says that it has no room for a turbocharger either"

"The engineering team had to resist the allure of weight-saving materials and turbos. “The goal was to keep it basic and make it a real handling car,” says Masuda. “Horsepower was not our focus. If you want horsepower, we have the STI.”

"The engine is an all-new design called the FA, with a perfectly square stroke of 86x86 and a variable-valve control system that Subaru calls AVCS, for active valve control system. The FA was developed for and only used in this car, "at least for the time being." On the required premium gas, Subaru's numbers are 200 horsepower and 150 pound-feet, with reps at a loss to explain why Toyota rates the same engine – that Subaru builds – at 197 horsepower. The FA is smaller than the Impreza's FB engine, achieved with items such as a shorter and lower intake manifold, a shallower bottom on the transmission, and revised, more compact lubrication system. Subaru then placed components in different places to get the engine further back in its bay, like making the intake manifold front-facing and placing the crankshaft 60 mm lower. The induction system was shorted to reduce overhangs, and the radiator was tilted 17 degrees to improve the center of gravity. Compared to the Impreza, the BRZ's engine is placed 120 mm lower and 240 mm further back.

And that's why there's no turbo, and no plans to include one – the engine occupies the space where Subaru would normally bolt one on. They moved so many things around, we don't know why they couldn't have been just as creative with some forced induction, but the company's traditional placement of the intercooler atop the engine simply wouldn't have worked. Subaru plans a longer life-cycle for the car, six to seven years instead of four to five, and it was strongly hinted that we would see a power bump during a mid-cycle refresh – but not a turbocharged bump. We were told as well, though, that this engine will be the base of Subaru's next-generation turbocharged engine."

Now the confusion comes from the fact that there IS a turbocharged version of the FA (~260-300hp). However, this engine is designed for the WRX and possibly STi. There is also a 1.6L turbocharged engine which MIGHT fit although it wouldn't make much sense as the power would be similar.

Power bump of some type is likely though. Even the Subaru engineers think it's underpowered..

"We pulled out onto the oval and worked up to speed. Two hundred horsepower is enough for the sub-2,700-pound coupe, with the urgent-enough grunt, plentiful road feedback and engine noises making it feel like things were happening, but we wouldn't complain about more, a fact which shouldn't surprise you (the BRZ GT's 300 hp, anyone?). We aren't alone: One of the engineers, when asked what how he might alter the coupe, said "For the handling there's nothing to do, but yes, maybe a little more power."
///M Power