Please HElp!! is it tuned right

[ra4u2nv 10+ year member]

Hey guys Need your help!! I am learning how to use Winisd and trying to build my first fiberglass box at the same time.

My box has a volume of 6.5 gallons of water which converts to .87 cu ft.

I want a round ported box. I am entering all the info in winisd program.

the sub has a dispalcement of .005 cuft and according to the program I can use a 2" port x 6" long with a port area of 26.56 cuIn. I subtract all that from .87cuft and I get .804 cu ft. The program indicates that the port should not give me port noise b/c of the vent mach figure. It also indicates that the enclosure will be tuned to 37hz. Now my question is if all this calculation is right????? can someone help me?

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