06 Infinity QX56 4HDC3 18's Crossfire xs-8k

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I will start off with this build although I have had several builds in this vehicle so far this is the best I have done in any vehicle.

I will show lots of pictures and videos and walk you through the build as I post. The vehicle is already up and playing and I have changed amps from where I started.

Here is a run down of the equipment from the start.

The system consisted at this time of

4 northstar 110ft
1 d5100R xs power
1 d3100 xs power
6 Maxwell ultracaps 2.5 2600 farad
2/0 copper wire in rear attaching all battery bank
1/0 runs from front 2
Singer 250+ alternator
DDM4
Rockford Fosgate R300.4
4 sets Jl C series 6.5
Audio Control LCi2
4 AQ HDC3 18's

Using Stock head unit due to fact everything runs through it.

Started with tearing down everything from a 2 18" wall destroyed the entire thing and here is the start of the new build

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Well once the tear down was complete it was time to begin to take care of a little foam on the roof.



Since that night it was really cold and we taped it all up there was no mess at all!


We then proceeded to make the floor, in the back had to make a small piece to fit in, was quite the pain.

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Well it was a long ass day. We started at 11:30 last night stopped around 5 slept for 3 hours and back to work, continued all day and called it quits around 8PM tonight. did not get everything I was hoping done. Started with the deadener whoever says butyl deadener can be applied at any temperature is a liar..... Had to keep the vehicle running with the heat all the way up and a halogen lamp on to keep it where it would stick properly. At one point we got out due to the heat and steam was pouring off us as we sweat to near death. LOL



Anyways got the deadener applied almost everything back in with the exception of the oh shit handles which my SUV has like 8 of, and the visor under the sun visor refused to work with me and I gave up on it and moved on. Got the floor secured and the side walls doubled glued and screwed together. Also got the top partially cut.



Found many obstacles that will need worked around since my SUV has rear air one side the rear pillar is much larger than the other, there will be fiber glassing for that area and since the sides are not the same planned out several different ways to get the back and the angle to the top finished. Also it looks like t a small area on bottom will need fiber glassed from bottom to sides but only a small bump. I am sure we will run into a couple more fun challenges before we get done, but will get through them all and make a monster!


Here are some pics


A little prep work cleaning the roof before deadener.

deadening

put 2 good layers on the roof panels

[djscrubb]

Tuned

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More pics




making a template for one of the sides

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Originally Posted by djscrubb

Tuned

Good to have you. Buckle up it is going to get intense!

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There was quite a bit of calculations and taping areas along with every bodies favorite, waiting for paint to dry.... The enclosure is going to be very close to what I was hoping for in cubic feet, port and everything fitting!


Here are a couple pics


Got a kreg jig, really like the way it works making it nice putting together from inside vehicle.

Waiting for paint to dry.


Making sure the batteries would fit.

Damn near perfect fit will be tight with the bus bar but pretty sure it will still clear.

Walls up!

Put a small 2x2 brace on bottom.

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First we worked on the top piece due to the passenger side of the car being huge in the pillar because of the rear air the entire night was a challenge. Ended up making the hole I knew was going to have to be there a bit larger than I wanted the cut from inside looked different and when we cut to the line we made well, shit happens... LOL That piece was the angle going back wall to top and had to wedge up to the top piece which turned out good. Not a big issue that side had to be fiber glassed anyway. Andrew came up with a great idea for the hole and making the fiber glass a bit stronger by taking card board with felt over it so when we resin it the felt and cardboard will soak it up and be a thick piece, but we will still do like 5 or 6 layers right there making it as strong as the mdf.

At this point I can give all the specs up until now was not sure the exact. Wall is 24 cubes after all displacements, port is 380 sq in tuned to 35 hertz. This monster should get down and be loud with air movement like a hurricane. At least that is what we are after!

Here are the pics tried to take a bunch but ended up getting too involved and missing some good ones.

Top on.

Angled piece


Filled the screw holes


Sanded it back down.


Port sides.



Rounded them out.


Putting the port in.


Added all thread, GOT PORT?

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Got first layer of fiberglass on last night, tried something neither of us had tried before and I must say it will be the last time I try it that way. What we did as you will see in the pictures is we took the matting and used super 77 to stick it in the corners. That part worked great and at that point I was thinking it was going to work and be awesome. It turned out to be awesomely a mess.... The fibers of the mat since there was not any resin under it kept coming up and floating long story short I sanded for almost 4 hours straight today to make it less ugly.



So lets start this session off with a kid in a port. He is 9 and 4' 11" tall at a weight of 84 pounds. The port is for sure huge!



Here is the way we covered the hole in the back. Basically that is 2 layers of cardboard hot glued to a piece of felt.





Here is the corners getting matted




Now on to the resin




Without respirators we would have either passed out or puked they are great investments.



Proof Andrew works!



First layer on

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So got it all sanded took 4 hours and I remembered I hate sanding fiberglass LOL!!! Still need more layers on the hole and going over entire thing with one more layer then gotta make the baffles and figure out how I want to lay out the amp rack and finish this thing already!



Here are some more pics.






Sandy Selfie






All cleaned up afterwards