470cfm 260fps at throat 330fps at short side 95-96% throat of valve size
you dont see that by figuring back from the velocity at the throat, and the airspeed,, that some relation can be made to the area at the short side? it can...
must be all voodoo top secret spy porting suff going on here,, magic..
your ca formula doesnt work to real world data,, it gives a ca that is larger than what is actually seen
