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Old 09-05-2012, 10:27 PM   #11
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You can measure the volume of the enclosure using packing peanuts. Fill the enclosure with peanuts and then, transfer the peanuts into cardboard boxes of known volume to get the actual enclosure volume. A 12"x12"x12" cardboard box = 1 cubic foot. The rest is easy.

I can't wait to see the finished box!


You can use strips of soft rubber under and behind the enclosure to decouple(isolate) it from the body of the car. I am giving up old tricks here!
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Old 09-06-2012, 08:01 AM   #12
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that's a good idea with the packing peanuts.
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Old 09-06-2012, 09:52 AM   #13
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Auesome! Thanx for the tips!!
As for sound dampening, I have about 4 100ft rolls of butyl rubber but they are only 1 inch wide. I might as well use it on the wheel well side since it's been sitting in a box at work for two years or more not being used. Cheaper than Dynamat and easier to stick where I want it.
I'll post up more pics here in a few hours when I get started again.
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Old 09-06-2012, 02:42 PM   #14
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Got a bit further today.
Masked off my electrical and tacked some rubber material to the wheel well to use as a backer for the fiberglass. IDK just thought it sounded like a good idea. If it wants to vibrate at least it wont be fiberglass to metal.



Than taped up some fiberglass mesh and started to coat it.


Than I fit the mdf back in to see where I needed to overlap the mesh to attach to the box.


Than coated the rest up to the mdf from inside.


This part just seems ghetto and may look that way as well, but I didn't know what else to do. I will add a few more layers of resin to thicken it up before I attempt to pull it out after it dries. This is turning into a bigger project than I imagined....
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Old 09-06-2012, 05:20 PM   #15
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So this is to be attached forever?
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Old 09-06-2012, 08:15 PM   #16
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No, there's a rubber liner material against the metal. Once the resin is dry and attached on the inside of the mdf it should pop out. the box is a very tight fit so it won't move around.
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Old 09-06-2012, 08:51 PM   #17
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Mold releaser would help IMO
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Old 09-07-2012, 01:44 PM   #18
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The mold popped right out with a little pull. Now just gotta build up a few layers so it's strong enough. After that seal the seams from inside and wire it up.
I couldn't find a carpet remnant to match but I'll keep looking or go with black.
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Old 09-07-2012, 07:07 PM   #19
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Parts Express has carpet FWIW
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Old 09-07-2012, 08:29 PM   #20
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What, no picture of the mold??
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