Need help with deciding on building enclosure for (2) 15" FI BTL. Going for ~36hz

This is the amount of room i would like to use:

Width = 36" (Max width due to wheel.)

Height = 24"

Depth = 22"

Would be sound better if the sub face up or sub face back. Also the same question apply to the port.

All of this is going inside a SUV.

What are your recommendation for the port?

If the above measurement are small, please give me some recommendation. I would like to keep the box small but also sound good.

I liked sub and port rear in my SUV. Others will disagree. . .

You have enough room.

100-120 sqin of port area is enough.

Example: 20" x 5" port x 19" long gives you 35 Hz tuning and 7.4 cuft net.

I liked sub and port rear in my SUV. Others will disagree. . .

You have enough room.

100-120 sqin of port area is enough.

Example: 20" x 5" port x 19" long gives you 35 Hz tuning and 7.4 cuft net.

If i was to change the height to 22 and the depth to 24? can i use the same port area..

I was thinking of facing the sub up and the port to the back.

Yes.