low range torque is over rated. What you want is torque from the mid range to the top end, where you really need the power. Having lots of torque down low and sacrificing top end power makes an engine damn slow (ie 22re and most sohc engines).
5sfe = 2.2 ltre correct? but it still uses the S block, so essentialy its just a stroked 3sfe. In other words it won't rev as hard or high and its potential will be limited in comparison to a similarly modded 3s-fe.
Another thing about adding forced induction to an na engine is the compression ratios. na engines usualy have a high compression ration where as a turbo engine does not. The reason being is that a turbo engine runs boost, more boost = more power untill you start pinging. An na engine will start pinging on much lower boost than a turbo engine and thus the acheivable power on stock internals will be limited.