2013 wrx enclosure design help (irregular box shape)

[lyons238]

I need some help designing an enclosure for my car. Here are the details that I'm working with...

- 2013 Subaru WRX

- Fi Q 12" loaded

- Sundown SCV-2000d

Enclosure Needs:

- 2.5cuft net

- 31hz

- 35-40cuin port area

- double baffle

- flared port

- rounded port bends

- Maximizing SPL without sacrificing SQ

I need to figure out how to meet these needs while fitting in the trunk of my car which has an uneven floor and calls for an irregular shaped box. I'm not sure where to begin or how to calculate volume and such with an odd shaped box like I need.

Here is an example of exactly what I need, except I would prefer maybe a different port design -> Sub Enclosures in WRX - Page 2

Click to read more...

 

[mylows10 5,000+ posts]

I know someone that has a box already built. It's a starrmountain box to

 

[lyons238]

I know someone that has a box already built. It's a starrmountain box to

a box that meets all of my exact requirements? I'm having doubts on that lol. anyone else?

 

[mylows10 5,000+ posts]

a box that meets all of my exact requirements? I'm having doubts on that lol. anyone else?

It was built for a 2014 wrx trunk. For a 12 also

 

[lyons238]

It was built for a 2014 wrx trunk. For a 12 also

Not all 12's are alike. What are the box specs though just for shits?

 

[mylows10 5,000+ posts]

Not all 12's are alike. What are the box specs though just for shits?

Yes I know this its 1.5 cubic gt net at 32 hertz. Double baffle flush mount plexi window above the motor led inside. I'll need to get dimensions from my buddy Btw the fi is suggested at 1.5^3 at 32 hertz as well 2.5 might be to much bix for the sub

 

[lyons238]

Yes I know this its 1.5 cubic gt net at 32 hertz. Double baffle flush mount plexi window above the motor led inside. I'll need to get dimensions from my buddy Btw the fi is suggested at 1.5^3 at 32 hertz as well 2.5 might be to much bix for the sub

No fi recommends 2-2.5cuft it's right on the website.

I'm looking to get all I can from this single 12 so I'm going to maximize the box size. Looks like I'll have to make one or have one made.

Does anyone have any info on how to design irregular box shapes and tune them? Trigonometry kind of slipped my brain since high school lol.

 

[mylows10 5,000+ posts]

Y

No fi recommends 2-2.5cuft it's right on the website.
I'm looking to get all I can from this single 12 so I'm going to maximize the box size. Looks like I'll have to make one or have one made.

Does anyone have any info on how to design irregular box shapes and tune them? Trigonometry kind of slipped my brain since high school lol.

Shouldn't be to hard figure it out as a regular box. Then the angled section figure it out as a cube and cut it in half

 

[lyons238]

Y
Shouldn't be to hard figure it out as a regular box. Then the angled section figure it out as a cube and cut it in half

It's not that simple, the port will be going across changes in shape across the bottom I have no idea how to figure out area on an irregular shape like that

 

[mylows10 5,000+ posts]

It's not that simple, the port will be going across changes in shape across the bottom I have no idea how to figure out area on an irregular shape like that

Use an aero port or dcar customs on maf