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Over the last two decades, powder forging (PF) has been proven as a very reliable way to successfully manufacture connecting rods for both gasoline and diesel applications. The inherent value in the near net formed product (NVH performance, material utilization efficiency, total cost economics) coupled with the attractive strength levels achieved with the introduction of HS150, HS160, and HS170 materials [1, 2, 3], have made it possible for PF connecting rods to meet and exceed the increasing performance specifications required by the next generation of diesel and gasoline engines. The goal of this work was to continue the research performed so far in developing new higher strength materials for PF connecting rods [1, 2, 3, 4, 5, 6] in order to further optimize the chemical composition of Fe-Cu-C systems for maximum performance.