how to remove cu.ft from sub box?
Printed From: the12volt.com
Forum Name: Fiberglass, Fabrication, and Interiors
Forum Discription: Fiberglass Kick Panels, Subwoofer Enclosures, Plexiglas, Fabrics, Materials, Finishes, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=111234
Printed Date: May 14, 2025 at 9:11 AM
Topic: how to remove cu.ft from sub box?
Posted By: rppngears
Subject: how to remove cu.ft from sub box?
Date Posted: February 01, 2009 at 10:02 PM
So I built a fiberglass sub box for my 350z to fit under the strut bar knowing it would be too big. But, now I gotta figure out a way to remove .4 cu. ft. I could obviously just fill the box up with wood blocks but I'm not trying to make a boat anchor. So instead I was thinking I could just put some triple expanding foam in there. Not sure if this will work to effectively decrease the volume of the box though? Need some help.
Replies:
Posted By: ryan95x
Date Posted: February 02, 2009 at 7:50 PM
The foam will work great for what you are looking to accomplish. It will reduce the interior volume while keeping the weight down. All that matters to the sub(s) is the net air volume inside the box.
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Posted By: lspker
Date Posted: February 02, 2009 at 10:05 PM
even lighter would be somr sealed air tight containers, like you put your sandwich in, just glue the lid down
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