While we changed different factors in the above graphs to see how they changed MSV these factors will remain pretty much unchanged in a running engine (piston to head will reduce a little as RPM's increase). That brings up the major factor that will change in a running engine RPM. In this graph we have in green are baseline (6500 RPM) we than reduce RPM by 1000 for the next two line and the last line is at 3250 RPM or 1/2 of are baseline and also 1/2 of its velocity. Remember while MSV raise with RPM time /duration of each cycle is reduced so at 6500 RPM you have 1/2 the time as at 3250 RPM.
