suggestions, 12 subs less than 1ft^3

Well, I came across these today from an old friend:

[img]https://img534.imageshack.us/img534/1818/sspx0164.jpg[/img]

I've had ideas for a system shake up for awhile now, going for a cleaner look rather than a huge box that now fills the trunk (Even though it produces oh so good SPL :( ) and something a little more practical for a DD. Anyways, after filling each box with water, I found one to be ~1ft^3, and the other to be ~.85ft^3.

The question is, what subs can I find that sound good in such a small sealed enclosure? I still want some nice thump, basically a decent SQ/SPL mix, leaning towards SPL more than SQ. Is there anything out there that will preform that well in that small of a sealed enclosure? Or will I have to make the boxes a bit bigger? I could probably chop the top off each one and go up, maybe make each one 1.5 cubes. I'll need to keep the power to each sub to around 400W RMS, my amp does 500W @4ohm, 900 @ 1 or 2 ohm.

So, should I build out to 1.5, or is there anything in that power range that can perform in what I've got? Also, how can I port these suckers? Can i use the round port calculator on here, and just install a round port? Thanks

Pictures that didn't load in the first post.

Thanks for the suggestions.

Any ideas on the porting Q?

Here's the idea I came up with. Not going to have time to take the measurments until later this week, but heres the plan (The drawing is not to scale haha) 

[IMG]https://img717.imageshack.us/img717/5885/10485885.jpg[/IMG]

Planning on having ~2 feet cubed before port displacement (Depending on whatever subs I end up going with), and port using 6" pipe with an elbow to accomodate the turn (I need 25" of port lenth (Says a calculator) for each sub, so without an elbow the lenth would not be possible)

Can I port the boxes this way, or will it just end up sounding like crap?

I was just going to go back to the forward end of the trunk, and place the amp rack on the floor in the middle, but I'm almost completly sure that won't give me my 2 - 2.5 cubes. I'm also toying with the idea of expanding at the rear of the trunk instead (Basically expanding across the back where there's nothing), so I can still can access from the cabin to the trunk and still place the amprack on the floor there. But only time and space restraints will tell there

Here's the calculator I used. Pop in the volume of the enclosure, frequency you want, and size of round port, and it gives you a lenth.

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

Should I be using another one, if this one isn't a widely used one, or something of that nature?

I don't have the subs picked out yet, this is purely planning stages, just so I can get my ideas straight and be off to the races when I'm able to build. Whatever I get should be at home in 2 - 2.5 cubes, ported at 35Hz, however I won't start building until i have my subs, so i can get as close to spec as possible. Only thing is, the port needed for a 2.5 cube box is 26" long, and takes up about .35 cubes of volume, bumping me down to 2.15 cubes if the initial design is 2.5 (***I Wonder does the calculator I posted above take that into account, or should I have 2.5 cubes after port displacement? Is there a calculator that does take it into account for sure?***)

Thanks for the lenth calculator on the bend, it will most definatly come in handy! Not sure what your talking about on that bit though, do you mean round off each edge of the PVC port?

Thanks for the help! Also, anyone else, please post your thoughts. I need all the opinions and help I can get :)