So i just ordered some 0 gauge wire and im really close until my build happens. Especially the weather is clearing up and i want get to started already. i did this on google sketchup i know looks ugly but i wanna kno how to tune or how big to make a port. i want the box to be tuned to 30-34 htz. i'm using the most space i can i have a 02 celica gt and the box is for an 18" dc lvl4 and it'll be powered by a dc 1k. I wanna know if it'll be enough space? any input would be appreciated. thanks(the port i want it across the top back)this sketchup is what i kind of want it to look like.
http://sketchup.google.com/3dwarehouse/details?mid=3abbf20021093ae4b6db8b698ab9ea2f