I'm working on something similar to Torres but for 4th orders.. It works for ported boxes too, but doesn't have quite all the options to be ideal for that yet.
Progress so far after plugging in the specs for a FI Team 18 (hybrid between daily and SPL)
I need a better way to determine the optimal sealed/ported volume and port area. I've got a good way to estimate, but something more scientific would be nice.
Options right now: any size rectangle port, any size aero, any amount of aeros. Also has a quick option for a square port. Right now I have to manually set the sealed and ported volume. I've been shooting for about 45-50 sealed Fc and a 1.5-2.5:1 ratio for daily boxes.