Can someone help me with Aero port lengths?

[budget76 10+ year member]

i seen some pipe at HD, 6" x 24".....cost was like 30 bux.
i almost bought it.

$30 **** the price jumps, I just paid $6 for a 2foot section of 4" PVC.

 

[Cabin_Pressure 10+ year member]

http://www.carstereo.com/help/Articles.cfm?id=31

 

[Xprime4 10+ year member]

http://www.carstereo.com/help/Articles.cfm?id=31

Ok from what i understand, there is many way of getting the same tuning with different port and lenght. But you still have to have a minimum port sq. so if my box is 8ft/cu with an Fi Q 18 with 27mm of xmax and a tuning of 32hz, i'll need 12,99 minimum diameter and minimum 132,53 inch/cu of aeroport.

Then, if i put everything in the good case with 6 inch aeros, i'll need them to be 14,21 lenght. so. so Pi x Radius 2 for the port area = (3,14 x 9 x 14,21 ) x 2 = 803,15 inch /cu of port??? //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[Xprime4 10+ year member]

ok just came back from homedepot. They got 3 inch x 6 feet and 4 inch x 6 feet (i think it's external dimension)

the box is gonna be those dimension : 37.25 width x 21 height x 22 deep for a total of 8.3 before all displacement. The port are gonna be on the from left to right / right to left of the box and sub facing top ( no other possibility , that's the only way i got 6 inch clearance in front of port). Is it possible to do something with the 4 inch port? pm me a working design and you'll get a small paypal donation //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

I'll be using 3/4 mdf, 32hz is the wanted tuning ( minus possible) on a fi Q 18.

thank you i'll be waiting for pms from good designer. And no i can't find anything bigger //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif The aeros will just be lenghty ( 37,25 - 1.5 mdf - clearance) will be the max lenght

 

[Xprime4 10+ year member]

4 aeros of 4 inch x 13.01 (straight one) = (3.14 x 16 x 13.01 ) x 4 ports = 2614 inch/cu.... does that work?

 

[Xprime4 10+ year member]

lil bump for a lost guy //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

4 aeros of 4 inch with a lenght of 13 inch each for 32hz tuning in 8.3 ft/cu ??? //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[Xprime4 10+ year member]

lil bump //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif if i ain't getting anwered i'll need to do a another thread, which is annoying to everyone //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

 

[rain377 10+ year member]

so whats and easy way to figure out how much port are u need when using areports? Im building a box thats 4 cuft for 1-15" i was thinking about going with 2 6" aeroports but thats seems like a lot now.

 

[jdawg 5,000+ posts]

so whats and easy way to figure out how much port are u need when using areports? Im building a box thats 4 cuft for 1-15" i was thinking about going with 2 6" aeroports but thats seems like a lot now.

it is

 

[rain377 10+ year member]

so then what would be the recommended?

 

[jdawg 5,000+ posts]

i dont know what sub, or power, or box size

 

[rain377 10+ year member]

1-15" bl fully loaded in 4 cuft and anywhere from 1500-3k watts

 

[rain377 10+ year member]

ive never used aeros before so im not sure how to calculate it

 

[rain377 10+ year member]

probably around 36-38 hz tuning

 

[enoot 10+ year member]

3k on a bl? but id just do 2 4" and theyd need to be 10 inches long without flares