It'll be 3 cubes after port and sub displacement.

Box size can be smaller i believe if you use an aero.

I seen a vid on youtube a while back and some dudes in russia had an sa 15 ported in a fiberglass enclosure. ..lemme try and find it

It sort of looked like this

Edited April 1, 201114 yr by eggyhustles

Here it goes

agreed use an aero port.Ported is the way to go.

Fine. I'll be porting it. Now just not sure how I want it to look, because theres no way I'm going to fiberglass it into the tire well with backfiring ports and still maintaining a flat top.

New idea will be to put the amps in the well with a plexiglass window and the sub box on top, but as to how it will look I'm not sure. The layout in the opel isn't bad, but I want it to be moveable if it's going to be above the floor taking up room.

Car's a hatchback, would firing the sub straight up or directly at the rear glass make much of a difference in sound?

Also, would having the port at the bottom of the box make a difference as opposed to being to one side?

I always got the best results with sub up port forward in a hatch.

As long as the port isn't blocked by anything, you should be good

Edited April 1, 201114 yr by eggyhustles

I'll take the lack of responses to mean that port location doesn't matter.

For a box with net volume of 3 cubes, does a port of 12H X 2W x 17.5L sound right for tuning to 31Hz?

I've been seeing that you want between 10-16" port area for every cube, but doing so would require a port length of just over 27" (with port area 12"H x 3"W)

This is what I've come up with so far, sub will be firing upwards

Port is around 3"W x 14"H x 32.5"L tuned to 31Hz

Box size is around 3.1 cubes

Any comments about if the port seems right, or if I should add some bracing are more than welcome

Box looks good

Not too sure on specs since box design was always my weak link

Box dimentions are 30L x 20W x 15.5H"

I'm doing this based of some google searches so I'm hoping for the best. If anyone could pitch in who builds these for customers just so I can get a double check before I pay for this?

pm this dude

http://www.soundsolutionsaudio.com/forum/forum/91-argent-audio/