View Full Version : 13W7 Ported Fiberglass Box **PICS**

03-24-2006, 10:38 PM
Just got done doing my first layer of fiberglass over my new box.... the box sits between my newly modified rear seats (Cut back 60% seat to 40%) the port will go under the face of the sub, obviously.

Anyways, It should be about 2.3-2.4cuft including port and sub displacement.... I will know more once I coat the inside with resin and fill 'er up with some water...

There will be a 13W7 on a 1000/1 JL Amplifier or 2.

Whats everyone think?

http://battlepsyence.com/IMG_2165 (Medium).jpg

http://battlepsyence.com/IMG_2166 (Medium).jpg

http://battlepsyence.com/IMG_2167 (Medium).jpg

http://battlepsyence.com/IMG_2168 (Medium).jpg

This is what she's going into... (Changed the pic)

http://battlepsyence.com/IMG_2381 (Medium).jpg

03-24-2006, 10:39 PM
pics dont work man

03-24-2006, 10:43 PM
pics dont work man

They do now ;)

03-24-2006, 10:46 PM
i would have definatly made the baffle eaither flush, or at a slight angle, and made the curves from the port to the baffle out of MDF and rounded that edge.

i dont know if that makes any sense. but yea.

otherwise looks laright. pics in car?

03-24-2006, 10:47 PM
Looks like you could ride it

03-24-2006, 10:53 PM
Well. the bottom, back, and about 4" up will not be seen, as its between the seats.

03-25-2006, 01:20 AM
that is very very ******.

pwnt by pat
03-25-2006, 01:24 AM
That's a lot of glass. Any bracing?

03-25-2006, 01:33 AM
thats some nice *** glassing work

James Bang
03-25-2006, 03:53 AM
where's the saddle???
Nice work. would match a JL nicely. plain n smooth.

03-25-2006, 10:10 AM
Thanks guys...

This is only my 3rd Glassing project... But You learn most of what you need to learn in the first 2 ;) So this is going a lot better...

As for layers... what would everyone suggest? I would kinda think ported boxes do not need as many layers as a sealed box, or am I just dreamin? I dont see the ported box getting as pressurized as sealed??

Bracing -- I thought about it, but I really didnt have the space to make this box look nice, and still fit where it has to go.... I am very limited for space.

Adding more layers of glass to compensate for bracing? I will atleast do 2-3 more on the outside, 1 on the inside, for a total of 4-5 glass layers, and the heavily resin'd micro fleece... which is probably as thick as 2 layers of glass, just not as sturdy...


03-25-2006, 10:14 AM
you should have braced the heck outta it. heavy sub. and alotta power your feeding. it.

03-25-2006, 10:15 AM
i have 8 layers on my box. but i would suggest doing more for the fact that better be safe than sorry. and it will only take a bit longer

03-25-2006, 10:43 AM
Thanks guys...

As for layers... what would everyone suggest? I would kinda think ported boxes do not need as many layers as a sealed box, or am I just dreamin? I dont see the ported box getting as pressurized as sealed??


Around the tuning frequency a vented enclosure is actually subject to more pressure than a sealed enclosure of the same volume. It's only when you drop below the tuning frequency that the pressure becomes less then sealed.

Remember SPL=pressure, if a vented enclosure is producing more SPL than a sealed one, then the pressure is also higher inside the enclosure.

03-25-2006, 11:57 AM
Hmmm good point....

Well I am a little late for bracing, so I better do a few more layers of glass... ugh ;) Its so **** messy, haha.. But worth it in the end.

pwnt by pat
03-25-2006, 01:02 PM
You're not too late for bracing. You should be fiberglassing the inside of the enclsoure anyway. Get some rope and cut it into strips and resin them into the inside of the enclosure. Then fiberglass over until they're almost unnoticable. Then, get some 2x4's and fiberglass them in to the middle of the enclosure in a cross shape.

It's never too late to brace ;)

03-25-2006, 01:14 PM
hehe so you have to stick your head in that hole and try to fiberglass hehe, thats fun, it looks real good man, just wondering, since your going to do the ater test once your all done, doesnt really matter, because if you come up a few liter short, i dotn think your gonna cut the project apart and add more heh anyhow nice job!

03-25-2006, 04:03 PM
Im not going to brace it... I have the space I need, braces will just make the volume smaller.... I cant afford the space. I will take my chances, and im sure it will be plenty good for me... Not trying to be arrogant, but Ive been building boxes for years, and the benefit of bracing opposed to the volume of the enclosure is not worth it when space is at a premium.

However. I have rough, really rough measured the internal volume excluding the port area, and I am confident that once its glassed, and ported I will have the space I need, if not more. If I have plenty to spare, I will reinforce the sides.

Did another layer this afternoon, and 1 more today, then 2 tomorrow.... 2 monday :) My neighbors love me, hahaha. (Fiberglass resin is potent)

Once the ports in, Ill post more pics.

Thanks for all the comments.

03-25-2006, 05:04 PM
fiberglass ***** for sound quality compared to MDF, thebracing is MUCH MUCH MUCH more apparent in a good glass box. ur box may sound hollow. and possibly make u anotherw7 owner not showing off their sub.

03-25-2006, 09:09 PM
two things, the front plate is WAY too thin and the volume is too small, otherwise it looks good at least

03-26-2006, 12:35 AM
Front plate? The sub mounting ring? Its 1" MDF.... how much bigger do you want it? :) The outside diameter matches the diameter of the W7, and the inside diameter matches the mounting hole side...

And the volume is at spec, or a little larger....

You lookin at the same thread? :)

03-26-2006, 07:00 PM
everyone will try to be bring down a sweet project out of jealously.

03-28-2006, 03:43 PM


Thats what I noticed about this place. Usually the person knocking the **** cant even build a box, or claims to have built the same box everyone else build, but they did it better.

Oh well... not like I base much on what people here say... the truth is always in the listening.

But I have taken bracing into consideration. I measured the volume and it has a little shy of what is required .09 to be exact.... so I am going to make some nice shapes to fiberglass onto the outside our of MDF, and glass them in, just kinda like fins almost... just for the bracing factor.

Anyways! I gotta get back at it...

Ill post more pics soon.

03-28-2006, 03:47 PM
I was thinkin the same thing about the saddle when i saw the first pic...

Man this should really turn out good. You gotta really good start. Probably could have added a little more bracing because that sub is pretty heavy but should be ok with all the glass. Anyways, It's a good shape tho I like it. Does it take up alot of space in your truck?

fiberglass looks like sh*t till its done lol, but this doesnt look bad at all. hope you gotta orbital sander handy :P

03-28-2006, 03:54 PM
Hmm well what do I think of the fiberglassing? Looks great. I think you are doing a very good job.

As for the picture of your truck. Chrome wheels in the snow?????

The salt on the road will damage them. You may want to consider getting another set of rims to use in the winter when there is snow on the ground.

Anyways, keep up the good work with the system.

03-28-2006, 05:56 PM
Hahaha, well it snowed for like 2 days after I had them on, then its stopped since... so I was being lazy and left them on, should be ok I hope...

As for fitting in my truck...

I cut down a 60/40 seat to be 2 40% seats, this sits in the middle of the 2... its quite big, but it has to be for lots of bass ;)

I got the 13W7 for a SMOKING deal, and I couldn turn it down, I was going to do a 12, but the 13 ended costsing me $500 canadian, no shipping.

03-28-2006, 06:15 PM
dude that is the same thing i did, i cut down my 60/40 in my ranger and put a box very similar to that one in, the pic below is when i just had it mocked in, i am still building and testing diff boxes till i find one that i like


03-28-2006, 07:23 PM
I got the 13W7 for a SMOKING deal, and I couldn turn it down, I was going to do a 12, but the 13 ended costsing me $500 canadian, no shipping.

How? Must been stolen, ha

03-28-2006, 07:27 PM
a 13 w7 is mad crazy man!!!!!!!! props

03-29-2006, 03:45 PM
Just some pics of sub test fit into the box, with the port installed, but putting a couple more layers on the entire box now...

http://battlepsyence.com/IMG_2385 (Medium).jpg
http://battlepsyence.com/IMG_2386 (Medium).jpg
http://battlepsyence.com/IMG_2387 (Medium).jpg

Some 13W7 Pics for the hell of it ;)

http://battlepsyence.com/IMG_2388 (Medium).jpg
http://battlepsyence.com/IMG_2390 (Medium).jpg
http://battlepsyence.com/IMG_2391 (Medium).jpg
http://battlepsyence.com/IMG_2392 (Medium).jpg

pwnt by pat
03-29-2006, 04:01 PM
turned out nice. Now to bondo.

You should have painted the inside of the port beforehand....

03-29-2006, 04:14 PM
Pics of you riding it please

03-29-2006, 04:30 PM
truck= :thumbsdo: :thumbsdo: :thumbsdo: :thumbsdo:

pwnt by pat
03-29-2006, 04:41 PM
ah ****

03-30-2006, 01:10 AM
Sweet setup.