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View Full Version : Can a fiberglass enclosure be ported?



ace_800
12-25-2006, 05:43 PM
I'm looking to have a fiberglass enclosure custom built for my Murano, but want to have it as a ported enclosure. Can it be built with a port to the same specs as my mdf enclosure? Obviously not the same design. Has anyone done one?

azbass
12-25-2006, 05:47 PM
yes it can. . and yes i have.

xtremekustomz
12-25-2006, 05:49 PM
yep u can do it! Just takes a bit more time getting all your airspace right. Especially if you have alot of curves and things like not. Not to mention the time it takes to actually do the work.

ace_800
12-25-2006, 06:12 PM
azbass- ygpm

.::DuD3::.
12-25-2006, 06:16 PM
just need to use aeroports.

azbass
12-25-2006, 06:22 PM
no you dont need to use aeroports.

PowerNaudio
12-25-2006, 07:08 PM
yes they can be done very easily. i have done a couple my self. i suggest an experience builder when it comes to fiberglass enclosures.

.::DuD3::.
12-25-2006, 07:11 PM
no you dont need to use aeroports.
what else could you use? seems like designing the port for something with a lot of curves would be difficult.

squeak12
12-25-2006, 07:13 PM
You can use any port its just a little harder getting the net volume of the box.

.::DuD3::.
12-25-2006, 07:15 PM
You can use any port its just a little harder getting the net volume of the box.ive never designed a ported box, but thought about porting my last fiberglassed box. i take it the aeroports would be the easiest?

squeak12
12-25-2006, 07:17 PM
Yeah, I would think so since you can play with the port length after construction unlike a slot port.

PowerNaudio
12-25-2006, 07:18 PM
all you have to do is build the enclosure like you normally would and add the mdf port and the mdf ring for the sub. once everything is in place then you go ahead and fasten your fabric around the perimeters you have created out of mdf wood, then you resin it one or twice letting it cure in between layer and then apply your fiberglass enough fiberglass to make the enclosure strong to support the pressure and weight of the sub, then you sand it, bondo it, sand, prime and paint or carpet.

.::DuD3::.
12-25-2006, 07:18 PM
Yeah, I would think so since you can play with the port length after construction unlike a slot port.
exactly what i was thinking :)

azbass
12-25-2006, 07:22 PM
you can still have a rectangle port in a box with curves.

Trey803
12-25-2006, 07:23 PM
I was wonderin how to people measure the internal volume of fiberglass enclosure fitted into the side of a trunk

PowerNaudio
12-25-2006, 07:33 PM
peanut packing stuff. helps to get the volume of the enclosure once the box is done.
if not then just split the enclosure with imaginary lines and take your measurements from there.

azbass
12-25-2006, 07:36 PM
i usually measure the area, and build to a equivalent size/volume that a square box would have.

ace_800
12-25-2006, 07:40 PM
azbass- your like 40 minutes away from me, near ft dix/mcguire. After you look at the links think you could help me out with the build?

expo5.0
12-26-2006, 03:15 AM
search "drew wilson fiberglass how-to" i have some super old pictures there of ported fiberglass enclosures being bult

can maybe snap some newer ones of stuff that doesn't **** so much

Mugen
12-27-2006, 03:27 AM
Well, you'd have to let it dry for a while, but you could always do what you learned back in HS sciences...

Fill that bish with water and then figure out the volume from there.

Calikid
12-27-2006, 03:33 AM
:word: i was about to say that.

PatFitz9
12-27-2006, 01:04 PM
http://www.explorerforum.com/fiberglass/fiberglassing.htm

96civ
12-27-2006, 04:48 PM
peanut packing stuff. helps to get the volume of the enclosure once the box is done.
if not then just split the enclosure with imaginary lines and take your measurements from there.
If you're going to take the time to fiberglass, why not take the time to get an accurate measurement of the net volume. The packing peanut method is very crude and inaccurate -- using water or another liquid will provide better results. It just takes a little time to cover the inside of the enclosure with trash bags or whatever you want to use, but you end up with more accurate data.

azbass
12-27-2006, 04:56 PM
a good fiberglasser. does not need to fill the enclosure with anything :fyi:

expo5.0
12-27-2006, 06:02 PM
i'm with you-

i've got a very good sense of what size enclosure i'm building as i go

96civ
12-27-2006, 06:42 PM
Not every person is a good fiberglasser though.

PowerNaudio
12-27-2006, 11:53 PM
If you're going to take the time to fiberglass, why not take the time to get an accurate measurement of the net volume. The packing peanut method is very crude and inaccurate -- using water or another liquid will provide better results. It just takes a little time to cover the inside of the enclosure with trash bags or whatever you want to use, but you end up with more accurate data.

there is a **** loads of ways for you to get the measurements of volume in the enclosure. the peanut packing is very accurate for what is worth. if you want to fill your enclosure with water cool go for it. but the different wont be marginal enough to make a difference.
i have build enough enclosures to know on the design stage what the enclosure volume is going to end up being like.
the peanut package material is the most commonly used and less messy thats why i suggest it.

luv2bass
02-18-2007, 08:53 AM
I was wonderin how to people measure the internal volume of fiberglass enclosure fitted into the side of a trunk

water.

drop in premeasured amounts of it and see how many will need to fill it up.

helotaxi
02-18-2007, 01:27 PM
You can use packing peanuts before you glass which would keep you from finding out after you've gone through a bunch of resin that the box is the wrong size. If you can't get within 0.1 cf in your measurement with packing peanuts then you need to rethink trying to build an enclosure at all.