So as everyone knows, engines with VVT/VVL/VVTL/VTEC/whatever systems, after switching camshaft profile and/or timing, will have to a different engine sound. I want to make an engine with the aforementioned system, and I already know how to make torque curves and all that sort of stuff. However, I haven't found any clue of how this sound changing thing is achieved in mods like KLJP and CCF2. Could someone who know about this help me out? Thanks!
