# 90 crx project fiberglass box

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=103104
Printed Date: January 24, 2022 at 10:50 AM

Topic: 90 crx project fiberglass box

Posted By: zcrx
Subject: 90 crx project fiberglass box
Date Posted: March 16, 2008 at 12:04 AM

Hey, This is my 90 Honda CRX project I have. As far as the I.C.E. goes I own two Fusion Nv 15's, Fusion FX-45 EQ and a Jensen Flip Out. I still need to buy two NV 2500 Watt amps and a set of 3-Way components and a set of 6.5" Components. Its a work in progress. I figured I would start posting the project. It should be getting more done here soon. Here is what I have so far.

The Box in the building.

The Box all put together besides the top in the car. 8 Cubes.

Box with top sitting on it. all cut and rings are in place. Fiberglassing the inside of the rings to the inside of the hole of the box.

Sub sitting in the ring.

Thats all I have so far. I still need a port. I tried to find out how to convert circle aero ports to a square port. Each sub calls for a 4" x 11-3/8" port. the tuned frequency is 26.2. Some help would be nice. hopefully I can update this soon. tell me what you think.

Replies:

Posted By: i am an idiot
Date Posted: March 17, 2008 at 6:56 AM

I just noticed the question at the bottom of your post.  In case you were wondering why you were getting no help, we didn't know you were asking for any.  The formula to figure out the area of a circle is

Pie  times   radius squared.  in your case   3.14159  X  (2 x 2)    which =  12.566 square inches.   This can be achieved with a square port   4 by 3.14159  inches.     11 and 3/8 inches long.

Posted By: willdkartunes
Date Posted: April 01, 2008 at 8:56 PM
Looks good so far. Make sure you show us the finished product. Are you wanting to compete or just have a nice stereo?

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Do whatever makes you happy in life without diminishing the happiness of others

Posted By: jmelton86
Date Posted: April 01, 2008 at 9:31 PM
An 8cube box with NO bracing?! Other than that, looks nice.

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2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001

Posted By: kris05vvti
Date Posted: April 01, 2009 at 10:08 PM
cant wait to see the final result

Posted By: KarTuneMan
Date Posted: April 12, 2009 at 4:32 AM
There is NO WAY you have 8 cu. ft. there?

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Posted By: i am an idiot
Date Posted: April 12, 2009 at 8:55 AM

I am guessing by looking at the speakers, 36 X 30 X  14.   On the First Gen CRX you could get 36 between the shock towers without building around them as he did.