So im putting 2 FI BTL 12's and both will need no more than 6 cu. ft of airspace.... is the trunk big enough for that? or will i have to cut some plastics away? i dont remember how to measure cu. ft.... if anyone knows off the top of their head thatd be great

 

so i read a post and it said the well area isnt big enough for two of those subs but would it work if i cut away at some rear plastics to make more airspace room? like where the spare tire well is and the little glove box, just cut away the plastics there?

 

Your trunk is 31 cubic feet. (IIRC)

 

31? or 3.1? i meant just the well area..... and if need be cutting out the plastics covering my spare tire well and the glove box...

 

any reason for 2 of the BTLs, one BTL should get plenty loud in the camaro.. ask me I know personally 2.5cuft tuned to 32hz.. Just sold it recently and going to a different sub.

What plans do you have for the electrical? Alternator, batteries, wiring, etc. Just curious.

For 2 12" btls though, 4.5-5.5 cuft feet should be plenty, about 5 should be about perfect. Y You can build it for a wooden enclosure, but the absolute best way for that much airspace is going to be to use fiberglass. And rather than cutting the side plastics and using that space for the box, you can also use the flat shelf part, it'd be alot easier that way if doing a wooden enclosure.

 

there is NO way for the rear hatch area to be 31cuft

 

I'm going by total cargo space in the back, based off the brochure.

 

Thats based by using the back seat area with the seats down, FYI

 

Really? I always thought it was just the back of the car it's self.

 

Nope, if you look closely, there is an asterisk which details that it is calculated by using the additional space of having the rear seats folded down.

 

Man, fine print is killer. Sorry for the wrong info dude. I'm not sure how big the well is really, I was planning on dropping 2 12"s in there sometime.

 

I'll have to dig up my notebook and find the total space. Just not sure which box it got put in. There is plenty of room for 2 "normal" 12" woofers. The BTLs he is using require a minimum of 2 cubic feet per sub, as these as competition level subwoofers and take a underrated power rating of 2000 watts RMS EACH. So they require a good amount of air space.


Easy way to calculate the volume in the well area is to get a 1 cubic foot box (12x12) and a whole bunch of packing peanuts. Fill the well with packing peanuts. Remove peanuts and fill the box, empty, repeat until peanuts are all emptied out. This will give you a very close calculation to the volume of the area you're looking to find.

 

I planned on getting an H.O alternator and a better amp wiring kit, a sundown amp and then either 2 12 btls or just 1 15.... so you say its plenty loud, could u compare it to something? Cause there is a guy in town who has 4 Rockford P3 15s in his car, would it be close to that?

 

Alternator - I would go no smaller than a 160 amp but would look around 200amp. You need something with good idle output as well as a decent peak. Look at Mechman alternators, www.mechman.com He has AMAZING Customer service and can do almost anything you need. Or check out DC Power inc. They make amazing alts as well and can also do anything you need.

battery - You will need a good size battery up front and a look into a PowerMaster XS d3400 or Kinetic hc2400 for the rear. You will need this at minimum.

Amp - Sundown is a GREAT choice, I love love love their products. 2500D should do perfectly on the BTL. If you can swing it, the Rockford T2500-1cp would be another great choice.

Wiring - You will HAVE to do the big 3 upgrade in 1/0 as well as your power wire run in 1/0. www.knukonceptz.com best price on wire and flexibility.

Comparability to 4 p3 15s. While the Rockford p3 subs have a good punchy sound, do a decent job on lows, and seem fairly loud. They should be nothing like a BTL. Now while he does have quite a bit more airspace from have 4 subs, that will work in his favor. But a single 15" BTL should at the minimum keep up and if done right be louder. 2 12's will at minimum keep up, but should be louder as well.

his 4 15"s may end up moving more air, due to the sheer fact of the air space he has. but by being in the hatch, and using a FAR superior sub, you should be in the clear.

 

and 1 15 pushes 3-5 cu ft and that would be easy to do in the well right? but thanks for all the input and advice!

 

If done right you be able to squeeze 3-3.5 out of the well I believe. And would be good for 1 15. Those BTLs are beasts

 

also what would be a good size fuse? 200A?

 

Unfortunately, from personal experience, running the kind of power that you will be, I would HIGHLY suggest doing a serpentine swap. They are so much more efficient. Running at the higher amperage the v-belt begins to slip, very very easily, and you lose quite a bit of output from them in doing so. The serpentine belt is 10x better hands down.

And yes a 200amp fuse should be fine, maybe a 250.

and as an edit to my post about the 2 12s being at a minimum as loud.. They would be quite a bit louder since you would be running almost double the power and superior subs, I wasn't thinking there for a second.
On that note though, 1 15 should still be plenty.

 

and by squeeze u mean fiberglass? i dont know how to fiberglass yet sadly enough.

 

as for wiring whats the big 3 upgrade u were talking about?

 

you should be able to do it using 3/4 mdf or birch, and by using all available space and angling the subs down from the top part of the rear down to the slant on the top of the well.

and the big 3 is this:

Battery Postive to Alternator stud.
Battery Ground to Frame
Engine ground to Frame

(I sayframe because its the best spot for a ground)

 

and thats just getting bigger guaged wire? and you mean angling basically as just angling them forward like what most people have? do you possibly have a pic of the box u had for ur 12 FI?

 

I'll see if I can find the pics, they're on an old flash drive somwhere.

And yes thats what I mean for the box.

And again yes Bigger gauged wire for those 3 spots. 1/0 wire is a must, 4 gauge will help almost not even make a difference.

 

as and edit to my earlier post about the alternator being a vbelt i wasnt thinking either and my system is a half v half serp. its got a serp running the water pump alt. and crank( of course) then vbelts running everything else so i got nothing to worry about.

 

Good to hear, that'll work in your favor, I had to learn the hard way. lol

 

alright, thanks again for all the help! now all i gotta do is save up the money!

 

Lol I hear that. This new build is gonna kill the bank haha. I figured new Camaro, new build right? lol either going with a DC Lvl4XL or a DC Lvl5 (www.dcsoundlab.com) The subs are beasts!

Gonna try to enjoy this while I'm young and have a little extra change while I'm going to College.

All the equipment adds up very very quickly lmao. $$$$$

 

Yeah im trying to save for college during my year off but its so hard when you got a camaro! ha and wyotech is expensive

 

BIG 3 (A MUST!!)

https://www.thirdgen.org/forums/car-...3-upgrade.html
https://www.thirdgen.org/forums/afte...ml#post4375162
http://forum.sounddomain.com/ubbthre...e/1#Post312025


Have a look at the SSA ICON subs. Very good sub and require a bit less air to move. On a budget...look at the the SSA DCON....great value.

 

As for the air question. There's plenty of room back there for air space. You can get right around 7 cubic with plastic removed on both sides with the box coming over the lip of the gas tank shelf to still be removeable. If you fiberglass it I would think 6.0 with the plasic in would be reasonable. On mine I did away with it all. I can't get the stupid scissor jack to work with my torque arm anyways and about 85% of my driving I wouldn't be in walking distance of an air compressor to fill up the spare.

 

So if i was to do one 15 FI BTL should i still get a second battery? or just stick with an HO alternator and a Big 3 upgrade? if i need a second battery how do i wire it in and where should i put it?

 

You will need a battery, you're going to be running 2000+ watts to the BTL, and a single battery and h.o. alt will not be enough.

Running a btl on 3k, 2 batteries and a 200amp alt and still had voltage drop to mid 13s.

 

What is your goal?

Why one 15 over two 12's?

Have you considered runnig an IDMAX?

 

The FI BTL 15 is cheaper than the 2 twelves thats why i chose that. I could just get one twelve but i just figured id get 1 15 instead.

 

ive always wanted to put a btl in my iroc.. keep us posted on the build!

 

so i read a post and it said the well area isnt big enough for two of those subs but would it work if i cut away at some rear plastics to make more airspace room? like where the spare tire well is and the little glove box, just cut away the plastics there?
________________________________
Soundproofing
Sound Proofing

 

Why would you want to cut the trim panels?

If you need space, just remove the rear seats.

There are some good 12" or15" subs out there that will fit in the space provided. Building a proper box is the key.

 

if i was you i would remove the back seats like what was mentioned above. this is proly what im gonna do with my two 15 inch hx2's

 

Some of us don't have the room in the rear seats due to roll bar installs :-)