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Thread: How To: Rear Well Fiberglass Subwoofer Enclosure

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    Default How To: Rear Well Fiberglass Subwoofer Enclosure

    Hello class. Today we will discuss designing and building a fiberglass bottomed enclosure for the rear well of an F-body. The enclosure will be sealed and will hold two 10 inch subs. A few of the key points will be:

    • Removal of the T-top holders and the protruding bolts
    • Preparing the area for fiberglass
    • How to work with fiberglass
    • Layering and bracing techniques
    • Finishing techniques for a near-stock appearance


    This will be an ongoing project for me, so keep it here for updates. Once the thread is complete, I'll probably clean it up for final presentation.

    ~Bone~



    MATERIALS

    There are a lot of cheap worthless resins out there. One company I have found that supplies high quality materials is US Composites. Their 435 Standard Polyester Layup Resin is perfect for automotive use and at $29.50 a gallon (hardener included), the price is right. This resin offers good strength and a nice flow out.

    USC also supplies a plethora of fiberglass matting to match your particular job. For this enclosure, I'll be using a combination of 6oz E Glass, DBM 1208 Biaxial cloth and some 4" 1.5oz chop mat tape.

    You will also need some sort of flexible mixing cup and some brushes (or rollers). It's good to use a flexible mixing container. After the remaining resin hardens, you can bend the container, breaking the resin loose and reuse the cup several times.


    DESIGNING

    After some rough measuring, I calculate there will be enough room for two cabinets about 0.6 cubic feet each. With the 14 inch width of this box, it is a perfect candidate for a pair of 10's. I'll be going with Rockford Fosgate's R2D4-10 subwoofers. The manufacture recommends a sealed enclosure of 0.59 cubic feet. Perfect.

    You will see as this build progresses, all the carpeting will be removed from the hatch area. A bed of thin fiberglass will be placed to establish the shape, a center divider and top bracing will be added and the entire structure will be laminated with a thicker fiberglass cloth. Then, one single top board will be placed, sealing off the box and creating a place to mount the amp. Carpeting will be placed on the board and will continue as a single piece up the remainder of the hatch and behind the rear seats.

  2. #2
    1LOMARO's Avatar
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    *subscribed*.... looking forward to seeing the completed project.

    "There is no shame in owning a V6. Anyone that makes fun of you is just upset that they spent more money than you, and their penis didn't get any bigger..."

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    bump do you have picture of the project as u was where working on it?

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    Quote Originally Posted by casper's6liter View Post
    bump do you have picture of the project as u was where working on it?
    I will have lots of pictures. I haven't started it yet, as I ran into an unforeseen delay.

    As I add to this, I will bump it though.

    My 2000 Camaro SS/RS Wannabe. Proud non-member of PHK

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    you keep talking about it I'll have to re-do mine sooner than I'd planned.

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    i plan pn doing sumthing like that but dont know how im going to do it yet

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    Looks like this project is about to get fired up again. I hope to have it complete by G16.

    My 2000 Camaro SS/RS Wannabe. Proud non-member of PHK

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    get to it sir. i'm following you lead

    96 Camaro Cam'd anti-Coupe
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    Where's them pics?!

    96 Camaro Cam'd anti-Coupe
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    Maybe one day I'll be able to do this.... Maybe...

    My 2000 Camaro SS/RS Wannabe. Proud non-member of PHK

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