port calculators

[Flipx99 5,000+ posts]

When using online and formula based port area calculators, does one use internal or external box volume?

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[iceteebone 5,000+ posts]

internal

 

[PhatTonyDeMarco 5,000+ posts]

Internal volume always...

Edit- ^ Bastard

 

[Flipx99 5,000+ posts]

thanks!

 

[iceteebone 5,000+ posts]

Internal volume always...
Edit- ^ Bastard

NO, i'm a jackass read the title //content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif

 

[Flipx99 5,000+ posts]

just so anyone in the future does a search (yeah right) on areoports or precision ports, thier customer service is A+. These 4" areoports are huge...they ain't lying when they tell you there is 7.25 in needed for install. They look like they will work well though. Can't wait until tomorrow to have everything cut and ready to go....