The 2AZ-FE is unchanged for 2010. As before, it is a 16-valve inline four with an aluminum block and head, cast-iron cylinder liners, and chain-driven dual overhead camshafts, with Toyota's VVT-i variable valve timing on the intake cam. It has a total displacement of 2,362 cc, with twin counter-rotating balance shafts for smoothness. In the tC, it is rated at 161 horsepower and 162 lb-ft of torque.
In past years, Toyota Racing Development (TRD) offered a dealer-installed supercharger kit for the tC, boosting it to around 200 horsepower, but TRD's catalog does not list kits for 2009 or 2010 models. That may be because Toyota is phasing out the 2AZ-FE in favor of the 2.5-liter 2AR-FE engine, currently used in the RAV4 and Camry.
The current tC dates back to 2004, and there are rumors that Toyota will replace it in 2011 with a new rear-drive coupe, powered by a Subaru-designed 2.0-liter flat four with about 200 horsepower.
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