Due to ever tightening legislation that restricts the levels of pollutants that may be emitted from internal combustion engines, vehicle manufacturers are constantly pressured to develop and produce ever cleaner and more fuel-efficient engines. Amongst the numerous research projects conducted over past few decades, the homogeneous charge compression ignition (HCCI) combustion has recognized as one of the most promising solutions because it has potential to provide diesel-like engine efficiency and very low pollutant emissions. However, significant challenges associated with HCCI combustion process need to be overcome before the commercial application of such engine can be considered. Many of these obstacles can be solved due to significant advances in computing power of modern computers and increasing application of advanced computational simulations in internal combustion engine development. In order to determinate feasible operational range of HCCI engine, in this paper a performance map of ethanol-fueled HCCI engine has been created using simulation software AVL Boost. A detailed engine model in combination with Vibe combustion model was used for simple and fast completion of this task. Based on obtained results, a matrix of working points had been made in order to calculate heat release profiles for each working point using multi-zone HCCI combustion model with detailed combustion kinetics for the previously used, but reduced, engine model in order to reduce required computational time.