sub box question

[CK1991]

I had a 3 x 10" woofer box I was planning to use in my car (picked it up for cheap with subs in it), but the box itself is too big (takes up the entire middle of the trunk....looks like it was made for an SUV or maybe a hatchback.) So now I'm planning on making 2 single boxes and putting them in the back corners of my trunk. The subs I have are hifonics olympian warriors model number w-124 (IIRC)....theyre 10" with thick treated paper cones and pink/ purple surrounds.
How do I decide what size sub box I should make? Unfortunately I don't have the paperwork on the subs to figure out how big of a box they are supposed to occupy and I have not been able to find an answer online. I'm looking to get more of a flat response out of them (I listen to all types of music).

Also, does it matter which way they are facing (forward, sideways, at an angle, etc.)? I know I don't want them facing backwards (thats just for pissing off the people behind you at a light) or up (excessive trunk lid rattling). Because on the length of my trunk, I can have them in pretty much any direction (firing sideways, at an angle, or forward.)

pic of the giant box in the trunk. (you can see the problem here....if I needed the spare tire, I'd have to pull the box). Not to mention when you pop the trunk, it looks like crap because you're looking at a huge sub box.


Sorry for the stupid questions, but I've never had subs before and don't want to mess up (I've heard alot of horrible sub setups), so I figured I might as well ask.

[Kirghiz]

As far as what direction for them to face, it actually matters. In your car, most likely you WANT them facing rear, or if they are facing forward, you'll want to reverse polarity so they fire toward the rear. There is an acoustic reason for this, someone else can explain it better, but it especially applies to hatchbacks and sedans. Firing toward the back of the car will sound better in your car.

The only way to determine the correct box size unfortunately is to find the T/S parameters of the subs.

[CK1991]

I just found the manual on hifonics website- kinda surprised they had a website. I didn't know they were still around. (had to dig through the manuals as they listed it as a speaker, not a sub)
according to them, it needs a .88ft^3 box. It also lists a bunch of electrical parameters and mechanical parameters, which are as followed.
mechanical
Fs 18.4hz
Qms 9.50
Vas 6.45 ft^3
Cms 83.364 in/lb
Mms 5.573 oz
Xmax .504 in
Sd 80.5 in^2
Dia 10.1 in

Electrical Parameters
Qes .374
Re 4.0 ohms
Le 2.7 mH
Pe 300 watts

sealed box .88ft^3
Fc 50.9hz
F3 42.6 HZ
QTC .886
fill normal
h 13.5"
W 13.5"
D 8.34"

sealed box
1.0 ft^3
FC 48.2 hz
F3 41.6 hz
QTC .844
fill normal
H 13.5"
W 13.5"
D 9.48"
so I guess I answered part of my own question, although I'm not sure why they list 2 sizes of sealed box?
They also list bandpass specs, but from what I've read, those don't give a flat response

[vwdude]

Those are the t/s parameters. They are used in calculating a box. If you are doing a sealed box then you don't really need them.

There's no way for us to know how to face your subs. I suggest trying them in all directions to see what works best . Facing back isn't necessarily bad. When facing forward the subs might cancel out with you miss. Facing back might make them out of phase, making them louder.