The vast majority of new engine designs are based on previous OEM configurations and attending parts/packaging constraints.
An engine designed without limitations could present vastly different intake manifold, head, and exhaust designs. These could be accompanied by related changes in the valvetrain and reciprocating assembly.
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Engine coatings are not always a win-win proposition. In some instances engine coatings can be detrimental. I will expound on this at a later time.
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Combustion chamber dynamics are a source of conflict even among us of the engineering persuasion. These dynamics differ cycle-to-cycle and cylinder-to-cylinder. Utilizing in-cylinder pressure data and related computer simulations offers promise in this area. Engineers are just beginning to unravel some of the complexities found in the ICE.
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I will leave you with this question:
Is gas-porting a viable engineering exercise or merely a fix for an engineering deficiency? Root cause analysis of this subject could prove interesting!
