Fiberglasss Sub Box

[Tnwagn]

I decided that my uncovered mdf boxes looked pretty lame so I decided to build a fiberglass box for my 12's.


Original Boxes(look lame, but they sound fine)

I started out by masking the humps in the back of the wagon with masking tape.


(the discoloration on the carpet is from my amp just sitting on the floor)

Next I layed down two layers of glass before removing what will become the sides of the boxes.





Cutting out the speaker rings is a good thing to do while the fiberglass is drying


(this is really easy if you have the right tools, too bad I don't )


At this point in the project I can't do anything because I have to cut the fiberglass sides down to size, but I don't have the right tools. Also, any suggestions or recommendations on painting the box when I'm done? I plan on covering the front fiberglass with bondo, then sanding it down and priming and painting it.

[npor]

i can't wiat to see the finished product.

[Jonathan_ed3]

Looks good so far.

Have you thought about how you're going to attach those/keep those held in place?

A dremel will work fine for cutting down the fiberglass. Or an air-cut off tool if you've got one. Even a regular hand held saw like the one you're using to cut your MDF will do the job. It sucks, and it's going to kill your lungs, but what can you do. lol.

[Tnwagn]

Yeah, I thought about just using my hacksaw to cut the sides up, but I don't want to risk seperating the layers because I don't want to make another side section. Dremel would be nice, but my tool supply is very limited(hacksaw, drill, and a really old reciporicating saw) .

Have you thought about how you're going to attach those/keep those held in place?

Are you talking about the hole box or the speakers? I cut out the mdf rings to hold the speakers in place. As for the box, the thing is going to weigh a ton and it is going to be a pretty tight fit inbetween the wheel wells so I don't imagine it going anywhere. The two seperate wooden boxes I have right now barely move at all, even around fast corners, so if I have them both in one box that is up against the sides of the trunk then it will not move.(Hopefully)

Anyway, everyone loves more pictures so here are some


determining volume of the enclosure with fleece and packing peanuts. Kind of what it will shape up to when it's finished.


Picture of the first layer of glass on the taped hump. Taping is the hardest part of fiberglass, because you don't want to get resin on your carpet.

[JARHEAD293]

can't wait to see that finish job man.ima start doing a fiberglass cover for my wagon's dash. have an xtra dash laying around so i can practice

[maroonaccord2.2]

Hmmm, well just make sure your fleece material is stretched tight when you're glassing it. You are off to a great start, glassing is pretty fun stuff.... I am looking forward to seeing your progress.

I recognize your concerns when cutting the fiberglass, mainly the delamination problem. You should be able to get a tool pretty cheap, probably $20 or less.....just shop around a bit.

[CustomLowz]

Looking great so far. Let me know if you need any fiberglass cloth, I have HUNDREDS of yards, and I will let it go for real real real cheap... (per yard)

[high c]

cant wait to see it when it is done

[caleb5022]

Great idea, and excellent write up! Keep us posted...

[Tnwagn]

Thanks for all the comments. I haven't had much time to work on my boxes and I still need to borrow the dremel from my neighbor. More pics to come.

[92acc]

be carefull hackin that glass, the dust will fk u up serious

[Jonathan_ed3]

Oh, you're making a box that goes all the way across the car? I thought you were making two seperate enclosures, one that attached to each strut tower/area.

If you're making one big box, why did you even bother wasting your time with the fiberglass for the sides? You could have saved a lot of time/effort by just boxing the main section in with MDF, and using fiberglass for only the top portion. Maybe I'm missing something!

[CustomLowz]

Oh, you're making a box that goes all the way across the car? I thought you were making two seperate enclosures, one that attached to each strut tower/area.

If you're making one big box, why did you even bother wasting your time with the fiberglass for the sides? You could have saved a lot of time/effort by just boxing the main section in with MDF, and using fiberglass for only the top portion. Maybe I'm missing something!

This way it fits snug against the wheel wells.

[Tnwagn]

This way it fits snug against the wheel wells.

Exactly. Still need to borrow my friend's dremel(man this kid is never at home , I want to get this done!) Decided to redo my front grill(the first one had a huge hump where it was bondoed and the paint was flaking off, basically was too lazy to sand it down enough the first time)


Much better