Shallow walls? (Now a buildlog)

Well, I'm stuck in Mod w/ my ext silverado...so I figured, why not try an semi-permanent wall.

I messed around w/ a few ideas, and came up w/ a drawing for a 2x4 skeleton that will fit through the doors. (not 3rd door)

I can get a solid 16-16.25cuft (gross) out of my first design w/ a 2.25" baffle and a single layer of 3/4" on the skeleton. But, here is the kicker...the internal depth of the wall is only 15".

I have never built a wall before, so I don't know how bad that will hurt airflow or maybe choke the port.

As of now, I have 2 DD3515's doing just 153's w/ 2 20.1's in basically a daily box (subs and port up). I was thinking start w/ them and maybe go to a 3rd 15"...but 55-56' is really all I'm looking for.

So, how does ~14cuft w/ ~330-360sqin port ~7" deep. The port would be around 10-10.5" wide, but only 10.5-11" from the back wall of the box.

Distance from the baffle to the front glass will be ~50". From top of port (extreme top left) ~80" to the kick. And from center of baffle between the subs to the kick (~10" from the right wall of box) is ~56".

Am I psychotic, or would this be a decent design to start with?

The only way to know is build and test. Nice drawing. What did you use?

I used Google SketchUp.

Anyone else wanna chime in please?
I have the skeleton up and going, hope to have it boxed in by Sunday.

What do you think about this design?
Am I wasting my time?

Looks like a good design, worth a try and build. The depth won't hurt you to much on 2 subs. If you went with more, then there may be a prob with back pressure at that depth.

The port is fine for being that far away from the back wall.

Nice drawing by the way. I like sketchup as well.

from the picture I would suggest filling in the area that is between the2x4's

i agree you forsure want more 2x4s or somthing in there.. but i say build it ..i dont see it being the loudest mod car around.. but i think your goal is doable

This is for spl of daily?

To tell the truth, I'm just having alil fun w/ something new.
The wall will fit through the doors, so it is FAR from permanent.

This truck is my daily driver, so I will most likely build some blockers to fill in the port area some for daily driving.

Its nowhere near a true Mod build.
Just something louder than I used to be.

Sadly, my old 153.1 was by far the loudest in the Monroe, La area. It sounded pretty good though. It would play any song and peaked at 45-47hz.

None of the other local shops build for even local SPL anymore. I have been the only thing keeping it alive for the last few years
As a matter of fact about 2years ago, I held the first SPL comp Monroe/West Monroe had seen in over 6 years.

I am trying to bring it back and get locals interested, but its slow going. Even other installers at local shops will not compete at my local shows. Its sad. I would love to have some friendly rivalries spring up (all in good fun, ya know)

At least USACi will be in town for Dream Cruz this summer.

Well, I got the skeleton about done today. Still going to add more 2x4's. After getting to the point I amp now, I have 4 studs left...plenty for extra braces.

I'll get some pics up soon.

Best of luck.

remember 4-27-08 j.c.

day day wrote:

remember 4-27-08 j.c.

The Tyler,TX show?
Yea I'll be there. This should be up and running for Tyler.

ok good deal

Here is the start of the skeleton:





Pretty basic, but should be the job done.

looks good

Nice

Great start!

Nice carpentry work. Do you build houses?

Thanks for the complements guys.

No I don't build houses, but I have been building dam near everything else since I was young. My grandpa is a carpenter though, I picked it all up from him.

I'm just hoping a few 3515's and 2 20.1's will be impressive enough for the locals.

I'm going to a Clarion flipscreen up front w/ a backup camera also, just have to get another paycheck or 2 before that happens. My Pioneer 860mp is going in the toolbox w/ the amps and batts. Going to set up up so the 860 will be used for burps only. The Clarion will run the system daily.

Looks good. Good luck

Well, its coming along. Kinda slowly, but its coming.




Gotta do alil glassing in the corners and run wiring to the toolbox.
Hoping to have it ready for Tyler,Tx on the 27th. If its not, I'm just gonna ride to the show for the hell of it.

Well, the wall did exactly what I was hoping it wouldn't.

I changed the port design on the fly and it ended up being too long. So (the best I can figure), the port is too close to the back wall and its acting like an L-shaped slot vent. It is only 7.5" from the back wall...so, I guess that was my retard moment for the week.

The reason I thing this is, its peaking at WAY too low a freq and staying withing 1.5-2db of its peak at 40hz. lol.

The only good things I'm seeing is that the wall is VERY secure in the truck and it is withing .4db when metering legal or outlaw.

I'm knocking the port out totally this evening and trying it w/ just the baffle as the port. Should tune me to ~60-65hz and my 1/4 wave to the dash is in that range depending on where you measure.

Sweeeettt

Gonna have it ready and all tuned for Scrapin?

mod 0-1000?

Well, I am about an inch away from pulling this fukin wall out on the ground a burning it

I knocked the port wall out and it does the same damn #'s. Only now it does it at 65hz instead of 50hz w/ the port.

I'm pretty well stumped. It is NOWHERE near loud. Only 150s.
I'm pissed. I guess walls are far from what I'm good at.
Hell, I louder on 1 9515 on 1 amp w/ a box below the windowline

I a just am just going to rip this wall out for the Tyler show and put my old box back in.

I'll deal w/ this wall later on in the summer. I just don't have the time to fornicate w/ it now.
Anyone have any ideas on what the hell I'm missing? Whats doing on w/ this dam thing?

help me out here before I go nuts.