This is like my 6th port question...

[bunkerking09 10+ year member]

ok, so i've been figuring my tuning on a 6" aero port...but i realized that since i'm gonna have two of them, its probably wrong, how would i find the tuning for this?

C= D x 3.14

C= 6 x 3.14

C = 19ish x 2 = 38 inches or circumference...

i'm lost on how i would tune this...

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[Immacomputer 10+ year member]

Circumference is the length of perimeter of the circle, not its area.

A=pi*r^2

http://www.psp-inc.com/

Go there and use their calculator.

 

[Farva 10+ year member]

Total combined diameter.

SQRT(A^2+B^2)
SQRT(6^2+6^2)
SQRT(72)
8.4852813742385702928101323452582
Area.

Pi*R^2
3.142*4.242640687119285^2
56.55 (just round it to two past decimal)
So your port area using dual sixes would be 56.55 square inches. You can use math or just download WinISD Pro, which will yield you the same port area. Or as Immacomputer suggested just use PSP’s online calculator.

 

[Blinkrazy 10+ year member]

use the tool on psp-inc.com thats what i use...