[Chocoholic005]

I've noticed alot of people feel that the 12.5:1 compression ratio in the new 2.0L engine the BRZ will own, makes a turbo setup impossible. This is something I don't really understand.

When it comes to the world of N/A performanced based engines now a days, the compression ratio is almost always too high to allow for any decent application of forced induction. But as far as the subaru engine goes, lowing the compression ratio is a piece of cake compared to most engines. And swapping in 9.0 or 9.5:1 compression pistons could easily allow for a 300-400whp turbo setup with little modification to the rest of the vehicle. This is assuming of course that Subaru continues to use forged rods along with their forged crank and the 6 speed trans is beefy enough to take it. Which based on the other applications of it, I would assume that the trans wouldn't be a huge issue at that level, minus maybe a clutch job.

I guess my question is why the 12.5:1 compression ratio has scared so many people off. As far as i'm concerned its not a huge job. Yes you'll have to tear the heads off, but if you plan on installing a system yourself, you probably have no problem doing that.

Note: Personally I plan to get a 2.5L in there somehow whether it be a complete swap or just a shortblock swap (to keep DI) because i'd rather have the extra torque. And have no intention of doing this, but I know alot of others are very interested in a high reving 2.0L turbo in this car, and feel like its impossible due to the CR, something I just don't understand.