IIRC, there is no "clear hole" to the trunk but the only think seperating them is the trunk liner which is thin and sound passes through easily. I think I remember feeling air coming through the hole from the trunk when it was open.

 

dude, you are the man... thank you soooo much. i shall have this in my car in a few days. thank you sir.

 

I'm interested to see how this turns out. Do you plan on doing it yourself or are you gonna have a shop do it.

 

having a shop do it ^ ^ ^. maybe tomorrow when i stop by there to get an hid ballast swapped out, i will inquire. the shop at the end of the building where you and i got the tint at leroy.

 

sojah, you can save some money doing this yourself. if your handy and know how to take measurements, all you need to do is find the center for the air tube..and your good to-go. you will need a dremal (or similar tool) to make the cut out.

 

is there a reason only 2.5" and not like 5"? also does the material in the tube matter or any stereo shop plastic tube will do? thanks,

 

2.5 is the outer width size ( lip of port tube), inner width (air flow) i think is 1.3/4 and length was 5 or 6”. i had cut the end piece of the tube so it can be flush with the speaker cover. the only reason i went with the 2.5 was cause i didn't want to leave a big o hole there. here’s where I got the port from. http://www.parts-express.com. go to the speaker building tab an dyou will find it under cabinet hardware.

 

so the stereo shop i was at yesterday showed me the super thin piece of trunk lining that is all that separates the trunk from the rear sub compartment on the UL. the material is pretty thin like 1/6 of an inch to maybe 1/4 of an inch but the material is very dense and hard. its hard to imagine that that small of material is really blocking that much of the air flow.

anyhowzer they were about to start cutting it up when we started talking about what i was ultimatley trying to achieve. we decided that i would drop my car off next week and they would build a custom ported box and have the port from the sub run straight up through that hole and pretty much act as a big funnel to dump the bass right into the stock sub location. with my same setup (1 jl12w6 & 1 jl 500.1 amp) they believe it will sound twice as good. the shop says it will sound like i doubled the setup but be much cleaner sounding.

sounds good to me so i'll post up some after pics when i get em next week but here is the before pics:





i always thought there was a bunch of math and maybe even some science involved with making custom ported boxes of this variety but the shop said they do it all the time and just did one for a big suv that they claim made a huge difference when they ran the ports all the up to the front 2 seats. lets hope they are math geniuses

 

That all sounds good, except for the part about running the ports up to the front 2 seats. One bass is generated in a room for instance, it doesn't matter where the speaker is located, as the bass travels everywhere, shakes everything, and you can't tell where it comes from. What am I missing here?

 

Not to mention the length and diameter of those ports dictate what frequencys the reverse energy of the sub will be tuned to. Good luck.

 

I am only getting like a 12" port, I was just telling u guys what they told me about a different setup. I am not new to car audio by any means and the story sounded weird to me too. For my sake I just hope they can get the math right for my 1 foot port needs.

 

kool, i would like to see how this ends. since i have the same set up as you (12w6 & 500.1). maybe its time for me to make changes in my trunk.

 

Regardless, I am glad that you are not sacrificing your rear A/C, which I think is a valuable and generally misunderstood and appreciated item in the UL package.

 

I really like the rear ac, just not so much the mini fridge. I keep a couple water bottles in there cuz I can but its not really functional for anything else in my opinion.

 

so, did you finish the trunk yet??