DD 9510G and 3 3" areo ports How much space should I take into condideration for all?

[iwearpro 10+ year member]

Ok im tuning to 40hz and plan to run 3 3" aero ports and I figured around 17 or so long, so How much space should I take out for the sub and ports?

I know the sub is around .25 cubes but the I came up with about another .25 or so with port area..

Am I pretty close here?

My plan was to be at around 1.6 after sub and ports.

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[thegreatestpenn 5,000+ posts]

did u get ur batts?

 

[Kastlez_ 10+ year member]

about .67 cubes displacement for ports. for around 57" total

 

[iwearpro 10+ year member]

did u get ur batts?

Oh yes I did, sorry.. I havent installed them yet but plan to over the next week or so..

 

[thegreatestpenn 5,000+ posts]

thank God! i hope you like'm.

you can calculate the area the ports take by taking the outside diameter and cutting it in half for radius. then its just pi*r*r*port length*3 (since u have 3 ports and they should be the same length)