PDA

View Full Version : Need to build a Box for Gmc Sierra Ext. Cab.



Rc 415
04-21-2006, 04:13 PM
Well, I need to build a new box for my Gmc Sierra Ext. Cab, and Well, heres what I was thinking. My box has to be a really weird shape to get the correct airspace for a vented enclosure. Would Aeroports be better than a baffle port? Heres roughly what my box will look like.
http://i3.tinypic.com/w1u3wk.jpg
http://i3.tinypic.com/w1u44o.jpg
The box will house a SI Mag D2, and I'm not home now, but dimentions will come after I get home.
I know the images are crappy, Microsoft Paint FTL, What program do you all use to make box images?

joeldirt
04-21-2006, 05:37 PM
allot of ppl use sketch-up design software... Easy to use and nice layout.... The aeroports will work well... I ported an enclosure for a 93 ford ranger regular cab.... 2.5 ft3 tuned to 32 hz... took up a little leg room since the seat was moved forward to accomodate, but it is possible... I used elbows to turn the ports so that they did not run into the back of the box as it was only 8 inches deep, and ran the ports out the front of the box between the two bucket seats... Your truck is allot bigger then that, and should have plenty of room to work with... just use your creativity and enginuity.

Rc 415
04-21-2006, 07:04 PM
Yes, Sketchup looks to be a very nice product, but I'm looking for somthing more along the lines of free :D .
Anyway, I got a bunch of dimentions now, I just need to draw the pics, will be posted in a while.

Rc 415
04-21-2006, 07:30 PM
Ok, here is what I have to work with, I want the box to be 1.5 Cubes, tuned to 32 Hz. What size ports should I use, how many, how long, and where should they be?

http://i3.tinypic.com/w2271w.jpg
http://i3.tinypic.com/w227gw.jpg
http://i3.tinypic.com/w227py.jpg

Rc 415
04-21-2006, 10:33 PM
Is anyone up to designing box plans that will suit my needs?

Rc 415
04-22-2006, 01:07 PM
Still need help...

Rc 415
04-22-2006, 09:05 PM
I there a better place I should be asking this question?

fox_forma
04-23-2006, 01:26 PM
Ok, here is what I have to work with, I want the box to be 1.5 Cubes, tuned to 32 Hz. What size ports should I use, how many, how long, and where should they be?

http://i3.tinypic.com/w2271w.jpg
http://i3.tinypic.com/w227gw.jpg
http://i3.tinypic.com/w227py.jpg
Why do you only have 14" o n the side of the center hump? I believe you can get at least 19" just on one side then another 15+ using the center hump. You should be able to get around 54-56" total along the whole floor under the back seat as well. At least thats how much i had on my 03 silverado ex cab. You best bet is to also make the frame for the box and fiberglass the floor to give you optimal air space and proper fit. Not to sure about the tuning part with ports when using an extended cab though

Rc 415
04-23-2006, 02:23 PM
I'm not sure, thats just what my current sealed box that I made measures out to be. I do plan on glassing the floor, but the sides and top will be Mdf.

Rc 415
04-23-2006, 09:19 PM
Here is a new side view I have made, The box is a little more than 1.5 cubes, as the bottom will be fiberglass.

http://i3.tinypic.com/whxvyd.jpg

Where can I put the ports and what kind should I use?

Buckshot
04-23-2006, 10:16 PM
Here is a new side view I have made, The box is a little more than 1.5 cubes, as the bottom will be fiberglass.

http://i3.tinypic.com/walrhy.jpg

Where can I put the ports and what kind should I use?

If you can put the ports on whichever face the sub is on will lead to the lowest cancellation between the two. Giving you the cleanest, most accurate sound. As far as port area goes I don't know whats recomended for your sub...

Rc 415
04-23-2006, 10:26 PM
The port area will need to be around 870 cubic inches(.5 cubic feet), plus the 1.5 cubes on top of that for the box.

mrray13
04-23-2006, 10:38 PM
fire a two 4" aeroports to the rear. having the sub/ports on the same plane isn't important, well, as important as some people believe. IME, sub firing down, ports to the rear is the loudest in these trucks, if your staying under the seats.


as too finding the length...check out casrstereo.coms calculator. works pretty good. (http://www.carstereo.com/help/Articles.cfm?id=31)



and in case your wondering..i've got a lil experience with xcab chevy's...

http://img220.imageshack.us/img220/1987/silveradoinstall0081or.th.jpg (http://img220.imageshack.us/my.php?image=silveradoinstall0081or.jpg) http://img220.imageshack.us/img220/1457/silveradoinstall0069fa.th.jpg (http://img220.imageshack.us/my.php?image=silveradoinstall0069fa.jpg) http://img220.imageshack.us/img220/1576/silveradoinstall0049fz.th.jpg (http://img220.imageshack.us/my.php?image=silveradoinstall0049fz.jpg)

that's a single memphis pr ten.....tuned to 38hz...


http://img119.imageshack.us/img119/8626/toolscarpetedbox0056ma.th.jpg (http://img119.imageshack.us/my.php?image=toolscarpetedbox0056ma.jpg) http://img119.imageshack.us/img119/4738/toolscarpetedbox0071su.th.jpg (http://img119.imageshack.us/my.php?image=toolscarpetedbox0071su.jpg) http://img119.imageshack.us/img119/5701/toolscarpetedbox0084my.th.jpg (http://img119.imageshack.us/my.php?image=toolscarpetedbox0084my.jpg)


that's a dual ten memphis hpo box.


and i've thrown a solo x 18 in there too...with the backseat in and out....




wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeee :peace:

Rc 415
04-23-2006, 10:46 PM
Thats exactly what I was looking for! what length ports are yours?

mrray13
04-24-2006, 08:13 AM
Thats exactly what I was looking for! what length ports are yours?


well, it wouldn't help you much. the single 10 box has like 7in^2 of port area (whatever it is memphis recommends for a pr10) and the hpo box has 3" ports per sub. both are tuned higher then you want as well, 38hz, so they'll be shorter then you wish.


according to the calculator i linked above...you'll need one 4" port 19" long or two 4" ports 41" long......



hope that helps even more...




wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeeeeeee :peace:

Rc 415
04-26-2006, 10:18 PM
Can Anyone make me a box plan? I talked with PV Audio, and he tried to help, but he has no idea how to do it in my truck!

mrray13
04-26-2006, 10:49 PM
your wanting to upfire a 12" si mag and port it, tuned to 32hz, correct? you want to use aeroports and want 1.5ft^3?


if that's what your after, i'll have some time tomorrow evening and will try to get you something drawn up.


kewl?



wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeeeeeeee :peace:

Rc 415
04-26-2006, 11:09 PM
Yes thats exactly it, thanks

PV Audio
04-26-2006, 11:16 PM
See? Toldja someone would know. :)

Rc 415
04-26-2006, 11:40 PM
indeed!

Rc 415
04-28-2006, 05:15 PM
bump for box plans

joeldirt
04-28-2006, 06:34 PM
couldn't you use elbows effectively to give you the port area you need to go inside the enclosure? two 3" ports with a 90 degree elbow should give yoou the length you need..

mrray13
04-28-2006, 08:36 PM
Yes thats exactly it, thanks


dude, i forgot!! sorry bro....i am off tomorrow so i will be able to get you those plans....

do you need drawings or jsut dimensions??



wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee :peace:

mrray13
04-28-2006, 08:37 PM
couldn't you use elbows effectively to give you the port area you need to go inside the enclosure? two 3" ports with a 90 degree elbow should give yoou the length you need..


yep, you can indeed use an elbow to get the needed length.





wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ee :peace:

Rc 415
04-28-2006, 10:15 PM
drawings and dimentions please.

Rc 415
04-29-2006, 03:16 PM
bump

Rc 415
04-29-2006, 08:04 PM
Bump. Feel free to hit me up on aim: PBaller415

Rc 415
04-29-2006, 10:37 PM
I'm tryn to start the box tomorrow, let me know.

CBFryman2
04-30-2006, 05:36 PM
I got your PM on SSA. Looks like everything is under controll. Dimentiosn and all see maccurate, however in the trucks ive taken measurements for its about 8-10" i nthe fron (play in the seat) and it goes down to around 6" in the rear if you really cram the box. The one im working on right now i have slightly smaller so that a grille wont be needed. I would have done down firing but w0's are space hungry little bastards and when you have maybe 2.5cuft total to work with and your subs want 2.5 net, things get trickey.

also make sure you have the mouting depth clearance.

Rc 415
05-01-2006, 04:29 PM
Bump still need the designs.

bri487
05-01-2006, 04:35 PM
fire a two 4" aeroports to the rear. having the sub/ports on the same plane isn't important, well, as important as some people believe. IME, sub firing down, ports to the rear is the loudest in these trucks, if your staying under the seats.


as too finding the length...check out casrstereo.coms calculator. works pretty good. (http://www.carstereo.com/help/Articles.cfm?id=31)



and in case your wondering..i've got a lil experience with xcab chevy's...

http://img220.imageshack.us/img220/1987/silveradoinstall0081or.th.jpg (http://img220.imageshack.us/my.php?image=silveradoinstall0081or.jpg) http://img220.imageshack.us/img220/1457/silveradoinstall0069fa.th.jpg (http://img220.imageshack.us/my.php?image=silveradoinstall0069fa.jpg) http://img220.imageshack.us/img220/1576/silveradoinstall0049fz.th.jpg (http://img220.imageshack.us/my.php?image=silveradoinstall0049fz.jpg)

that's a single memphis pr ten.....tuned to 38hz...


http://img119.imageshack.us/img119/8626/toolscarpetedbox0056ma.th.jpg (http://img119.imageshack.us/my.php?image=toolscarpetedbox0056ma.jpg) http://img119.imageshack.us/img119/4738/toolscarpetedbox0071su.th.jpg (http://img119.imageshack.us/my.php?image=toolscarpetedbox0071su.jpg) http://img119.imageshack.us/img119/5701/toolscarpetedbox0084my.th.jpg (http://img119.imageshack.us/my.php?image=toolscarpetedbox0084my.jpg)


that's a dual ten memphis hpo box.


and i've thrown a solo x 18 in there too...with the backseat in and out....




wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeee :peace:

port to the rear is the loudest. as far as the woofer direction. when sealed, downfiring, but ported, with upfiring you can gain more airspace. just counter sink the woofer so it doesnt hit the seat.

i also have a ton of experience with extended cab chevy's. my dealer and i have been playing with mine for over a year now. now like 4 or 5 boxes down the road, two 12"s sealed, two tens sealed, a single ten ported, we ended up with two tens ported. the bass soudns absolutly great. very tight and energetic, not to mention loud. next i think he wants to try three 8"s ported.

Rc 415
05-01-2006, 04:40 PM
So... Can you help get me some plans for a 12" SI Mag Ported with 1.5 cubes tuned to 32 hz? Also fitting under the rear seat firing up?

Rc 415
05-01-2006, 04:41 PM
The port area will need to be around 870 cubic inches(.5 cubic feet), plus the 1.5 cubes on top of that for the box.

bri487
05-01-2006, 04:44 PM
So... Can you help get me some plans for a 12" SI Mag Ported with 1.5 cubes tuned to 32 hz? Also fitting under the rear seat firing up?

pretty much just make the box as big as you can under that seat, and get every bit of airspace you can out of it, then worry about the port later. yea, mine is all under the seat, and my seat is lifted up a little bit.

Rc 415
05-01-2006, 07:30 PM
Any chance you can get some drawings?? Btw, just noticed your in Cali, what part?

Rc 415
05-02-2006, 02:32 PM
bump

Rc 415
05-03-2006, 01:29 PM
bump

Rc 415
05-03-2006, 11:03 PM
bump for box+port design

Rc 415
05-05-2006, 07:06 PM
^^^

Rc 415
05-06-2006, 11:57 PM
bump for slot prt design??

Rc 415
05-07-2006, 09:27 PM
External ports??

prochobo
05-07-2006, 10:04 PM
Just to let you know, Sketchup IS free. Google bought part of the company and is now distributing it for free, the non pro version that is.

lilmaniac2
05-07-2006, 10:06 PM
theres a few places on the net where u can pick up a pro serial number

amartin_72
05-07-2006, 10:35 PM
DUDE Build the box that is as large as your cabs **** your rear seats. Make the truck LOUD and build a mini wall behind your seats and pump that ****! Stick with it dude Ill bass race you!

Rc 415
05-08-2006, 12:05 AM
Thanks guys, I'll look into the sketch up!

Amartin, I never thought about the space behind the back seat, I'll have to take a peek and see what there is for space back there. Bass race would be cool, but you are too far from me!

amartin_72
05-08-2006, 12:23 AM
I might be in Colorado this summer?

Rc 415
05-09-2006, 04:10 PM
Bump for starting to make cardboard template

Rc 415
05-11-2006, 11:11 PM
Bump

Rc 415
05-13-2006, 08:59 PM
BUMP Can a slot port work for me?