The Turbocharger is most powerful equipment integrated with engine for boosting AND UPKEEPING performance of IC engines at all speeds ranges as well as higher load. The arbitrary selection of turbocharger for desired engine may cause negative effects sometimes like a surge or choke in the charge flow. The careful and tactful approach required. This research article focuses on matching of turbochargers with engine by simulation and on road testing. This work emphasis in finding matching appropriateness of turbochargers with trim 68 (B60J68), trim 72(A58N72) and trim 75 (A58N75) for the TATA 497 TCIC -BS III truck engine. The on-road testing like Data – Logger method is employed through the rough road routes, highway, city Drive, slope up and Slope down. The compressor map is employed to evaluate the appropriateness of turbo-matching.
