^^A Wolf in Sheeps clothing sorta speak. You want the 2az to come alive...You turbo it. TRD Supercharger won't net you any significant power....but a turbo...She loves Snails. You are of course going to get a variation of whp numbers at same boost levels because some are running 3 inch exhaust vs 2.5, turbo specs, manifold specs, dyno specs, tuning...etc.
But you can expect anywhere from 260whp - 300whp @ 8lbs of boost. You will blow the block when you are in the range of 350-400whp depending on the tune. Keep it 350whp or less for a safety margin if you plan to race on a stock motor. Or if you want to get 100k miles or more for a daily driver keep it at 300whp or less with a stock motor and just do your normal maintenance.
The new 2011 tC you can expect 300-320whp @ 8lbs of boost DynoJet (using a dynapack one put down 333whp/303wtq @ 8lbs on the Descendant turbo kit, but those dyno's read rather high imo).
A GREAT fundamental difference between a TRD S/C'ed tC and a Turbo tC.
Example is Me vs My friends fully bolted on TRD S/C running a 9.5psi pulley (He dynoed like 240whp/180-190wtq if I recall correctly. Problem with that though is that it's 240whp @ Redline since it's a Centrifugal Supercharger)