Hi Jon,

I don't know in how mutch time you want it, but here is what we're working on:





This subwoofer enclosure is design for using the maximum air volume it possibly can under the dash (Explaining it's wierd shape) In the picture, you can only see the first piece (The model, the base...) I need to make the molds out of it and when the molds are ready, then I will be able to reproduce the enclosures. Basically, I'm trying right now to sand it, prep it for the best finish it can have. I don't know how mutch time left I have to put in the project but chances are it will be ready to make reproductions by the end of the summer.

As for the cost, I have more than 250$ invested in the project and I think I will invest maybe 250$ more. (This money is only the material I used: Foam, Plaster, Fiberglass stuff, primer, clear...) This doesn't count for the fiberglass I will be using in the products I will sell. So for the price, I don't know right now...

I would want to make some test too, to see how mutch layer of fiberglass will be good for keeping the subwoofer enclosure from expanding too much. And finally, some kind of brackets will be needed for the subwoofer enclosure to be attached in place. (And he is actually quite heavy, and I need to add the weight of the subwoofer, and add some reinforcement just to make sure it won't drop because he is playing or anything)

Now here are the good and the bads:
GOODS:
-One thing is sure, this subwoofer enclosure is perfect to use the maximum space it can use underdash
-You can fit at least 2 kinds of 8" subwoofers
-You don't have to put it behind the seat so there is more place for the passenger to move his seat
-Obviously, you can put 2.5" more of subwoofers than the original subwoofer enclosure (lol, that's the point of it)
-Because it lowers to the same height of the plastic vent used for the air conditionning and heating, people won't detect it as much as a subwoofer enclosure behind the seat.
-The modification is hidden, therefore tougher to detect from the outside of the car (If you're planning on going to car shows with an original car

BADS:
-You CAN NOT fit bigger than a 8" subwoofer
-I can only garenty you that 2 subwoofers will fit in, I didn't tried alot of them
-The amplifier CAN NOT be under the dash, there is not ennough space. (I recomend behind the seat or if you want you can put it in the front compartement or even in the trunk)
-The subwoofer is exposed to anything, so people could accidently damage it with their feets (I will work on somekind of grill after that for protection)
-The modification can easily be seen by the interior of the car (Well, easily... only someone who knows about fiero will know it)

That's all the points I can think about right now, I will write more things when I will do the official post. (When the molds will be ready) I just wanted to let you know that at least someone was in the project!

If you have any questions, I will try to answer them the best I can!

By the way, I DO NOT take waiting list! Sorry guys! :/

Fred

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87 Pontiac Fiero GT

Finally, I took some pictures of the fitting. Sorry for the bright red color, while doing the project and to make a better finish of sanding (Sanding clear makes a better finish and is easier than sanding putty, fiberglass and everything else) I was doing some paint test for my futur color of my Fiero

Here is the hole where the enclosure will fit (Note that you need to relocate the chime module):


The enclosure will go up this way:



Here is the fitting without the dash:




Here is the fitting with the dash:




Now the subwoofer hole:


And now is a important thing we do not want to forget, that above the subwoofer enclosure there is a 4X10 speeker. So we adaped the enclosure like this:


Here is all the pictures I can give you that I can think of right now. I hope you like it. Feel free to leave comments!

Fred

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87 Pontiac Fiero GT

Synthesis,

This is one thing I forgot to say. Unfortunatelly, the subwoofer enclosure is using the maximum space and is the biggest it can get. Therefore you WILL need to remove the dash. At least, that's what I did for all the testing. I would be actually impressed if you don't need to remove it. But one thing is sure: somehow, you will need to remove the dash to wire the sub, to relocate de chime module and to put on the brakets to hold the sub enclosure there.

And by the way, thanks to everyone for your good comments! Really appreciated!

Fred

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87 Pontiac Fiero GT