View Full Version : dsmdan's 05 Ram Quad Cab Blow-Through Build

02-25-2010, 07:27 AM
Hey guy's I've started the next build on my truck and I'm going to try and document as much as I can this time.

The truck is my daily driver and is a 05 Ram quad cab short bed 4x4 with the hemi engine. I really love the truck, its got tons of power and will tow everything that I need to tow with it. I tow my car to ohio every August with it and drive it about everyday unless its in the summer and I drive my car or bike.

Current / Old Setup
1 RD heavyweight v2 18" in 5.5 cubic ft box that takes up 2/3rds of the backseat leaving room for 1 passenger.
1 AQ3500
DC Power 270XP alt
Optima red top up front, C&D 134ah batt in the rear.
Eclipse CD8445 HU
2 runs of Shok 1/0 CCA throughout
Rockford Fosgate Punch P400-4 mid/highs amp
Pioneer 6.5" components in front doors
Kenwood 6.5" components in rear doors

The New Setup
2 RD Audio Heavyweight V2 18's, dual 2 ohm each.
1 RD Audio D9 Amp
5 Deka 9a31 group 31 Batts. (1 up front, 4 in the bed).
60' KnuKonceptz Blue Kolossus Fleks 1/0 for Power wires.
60' KnuKonceptz Black Kolossus Fleks 1/0 for Ground Wires.
Eclipse CD7200mkII Head Unit
DC Power 270XP Alternator
Rockford Fosgate Punch P400-4 midrange amp
Pioneer 6.5" components and tweets in front doors
Kenwood 6.5" components and tweets in rear doors
Infinity Reference series 3.5's in the dash.
Stinger LED Voltmeter
KnuKonceptz Krystal series RCA's for sub amp
Rockford Fosgate "dual twist" series RCA's for midrange amp, 2 sets.

The entire setup will be built, fabricated and 100% installed by myself.

My goal and initial thoughts about the design and setup of the new system is this. I want to regain the use of the 2 person bench seat in my truck, but also have my system be much louder than it currently is.
At times I use the bed of my truck for its intended purpose but 90% of the time I wish I'd have bought a Jeep instead, so I've decided to go through with a blowthough build. Although it would be nice to build a 4th order or 6th order bandpass enclosure for the 18's, I've decided to just build a simple sub forward, port forward ported enclosure for it. Reason being is 4th and 6th order setups usually end up taking up the entire bed of the truck any my goal is build a bit smaller ported box and leave about 30% of the bed empty so it allows me to haul smaller things when needed. I can always use one of my trailers if I need to haul larger items, but it will still be nice to retain some use of the bed and I think I'll be able to do that.
About 2 weeks or so ago I was browsing craigslist and came across a fiberglass tonneau cover that was for my truck, and was already painted the same color as my truck. Best of all, it was in great condition with just some minor paint scuffs, and even better it was a 10 minute drive to pick it up and I only paid $200 for it. Its very nice and when down, it encloses the tailgate to kind of "lock" it shut. The tonneau locks as well and has hydraulic shocks to lift it. Gotta love craigslist! Picking this up for this price really gave me the first hope of building the blowthrough setup.
Whats really nice is this tonneau cover gives me about an extra 1.5" of height, and when I remove the current plastic bed liner, I should gain another 3/4" of vertical room. I still have to remove the bed liner to verify and get some final measurements, but I should and hope to have enough vertical room to place both the 18's straight up and down. If not, I'll have to angle the subs for clearance, or get a set of 15's if I want them to stand straight up. I'll know for sure on that in a few days or so.

Tomorrow (or today actually), I'm picking up the 2nd HW 18 from my buddy. The d9 should be here in about a week, and I'm waiting on the final 3 deka batt's to be shipped, those should be here in about a week as well. I'll be ordering a slider to slider accordion seal shortly.

As of right now the old setup is out, the rear seats are out, the new head unit is installed, the front deka battery is installed, and I've began some under the hood wiring. Most of the under-hood and engine ground wires are done.

Here's the pics pics that I snapped tonight after installing the Eclipse 7200mkII and the front Deka batt. I'll be sure to take plenty of more pics of the setup and the truck itself.

Here's tonight's pics

Installing the Eclipse 7200mkII Head unit. Copper chassis, 8v preouts, deadhead, usb, etc. So far I love this headunit. I'm most fond of the built in X-over and PEQ settings.

Head unit installed, also notice the aux input coming through the center cubby, and the Stinger voltmeter to the right on the dash.

Front (underhood) Deka 9a31 installed, and ground wires installed. Don't mind the positive side, its not finished yet. I was contemplating on having some CNC'd 1/0 input blocks made for the front battery but I really like the sure tight worry-free connections from the bolted down ring terminals so I'm on the fence about it.

All of my connections are fully soldered, and are sealed in black or red heat shrink tubing. Black for grounds, red for positive wires naturally haha. Here's a few pics showing my soldering and heat shrink connections. Not too bad for only my 3rd time soldering terminals. I'll never, EVER go back to crimping on a ring terminal again.

AQ3500 Air Guitar FTMFW, a little haha pic after I removed the amp and prepared to pack it up to ship to the new owner.

And finally here are 2 pics of the truck when I first bought it over 1.5 years ago. Obviously the truck still looks generally the same however these pics are old and I'll try and get newer pics asap!

Thank you for looking and let me know what you think. Any help, tips and comments are greatly appreciated! I should be able to post more pics tonight! Thanks again!

02-25-2010, 10:38 AM
TIP. Look into attaching some type of support around the blowthrough. My poor truck was really weak along the back. Hurts your spl and its really loud on the outside when the back of the cab starts flexing.

02-25-2010, 11:46 AM
Looking forward to this one.

02-25-2010, 08:39 PM
Thanks for the amp!!! :) cant wait to see the build, ill be posting up my build very soon!

02-27-2010, 08:18 PM
Anyways small update right now. Got the underhood wiring done. Even upgraded the starter wire, Alt to PDC wire, and did multiple engine grounds. Again I like overkill haha. I also removed most of the interior and steam cleaned the carpet, and I'm in the process of detailing the interior panels and seats, and I'm also in process of running new speaker wire for the components, and re-routing the RCA's, but I forgot to snap pics of that stuff.
Also snapped a few quick pics of the truck. Trucks dirty as hell, but I live on a dirt road and its been ****** out with the winter weather.

Thanks, I'll update when I do more!


02-27-2010, 10:06 PM
Very nice, love the truck. This should be interesting...

02-28-2010, 03:56 PM
hey what do you call that sticker on the lower drivers side windshield?? lol i just cant seem to find what theyre called. and btw, i cant wait to see whats in store for this hemi. my dads got the same as urs only red and hes looking for a little insight on possibilities to do to his truck. keep it up!

02-28-2010, 04:17 PM
Looks good. I've got the same truck. I also love it. Altough, my setup is under the back seat. Not a blowthrough.

02-28-2010, 04:24 PM
hey what do you call that sticker on the lower drivers side windshield?? lol i just cant seem to find what theyre called. and btw, i cant wait to see whats in store for this hemi. my dads got the same as urs only red and hes looking for a little insight on possibilities to do to his truck. keep it up!

The Shocker - two in the pink, one in the stink.

02-28-2010, 04:33 PM
Cant wait for this to be finished...should be interesting :)

02-28-2010, 06:13 PM
I have had an itch to get a cummins, I have been thinking about adding a system to one and the only way to get a decent system is blowthrough or mega cab. I might go ahead and blowthrough one if I do end up with one of these suckers. Don't know why I have had that itch so bad. A smarty chip and an intake and straights just sounds like fun.

03-02-2010, 06:39 AM
Over the past few nights I've got a good bit of work done on the interior, and I just ordered the slider accordion seal for the cut.

I removed the seats and carpet and ran the RCA's, and the power wires for the RF mids amp, along with the remote wires, and interior speaker wires.
Got the interior pretty clean, remounted the component's on the door panels, and I went and picked up the 2nd sub.

Since I'm still waiting on my batteries, I don't want to start running the runs of 1/0 to the bed yet, I want to be sure to make the runs long enough. I also need to design the box before I can figure that out.


03-02-2010, 07:09 AM
Very nice, I'm starting my blowthough in my Dakota in two weeks, will keep on eye on your build. :)

03-02-2010, 07:39 AM
clean build

03-02-2010, 12:01 PM
When you doing the cut? Hurry I wanna see how it looks.

03-02-2010, 04:39 PM
Its probably going to be a few weeks until the cut is made.

03-02-2010, 05:10 PM
Nice man!!! Subscribed. Btw, you were right about those connections you make, they look clean!

03-05-2010, 07:30 AM
Well not too much of an update. Lately I've been doing some more work on the interior door speakers and sound deadening them and other misc. things.

But on a good note my 3 other Deka batts came in today! Cheap factory 2nd's FTW. So now I have a total of 5 Deka 9a31's, giving me a combined 4000 cold cranking amps, and 500 ah battery reserve. Not too shabby for a DD considering I only have about $400 into all 5 of them. Just have to pick up some nuts and washers for the terminals.


Also, I flipped over the rear wall seat brackets, and sure enough, they now allow the rear seats to fold fully down while still locking to the wall in both the full up and the seating positions. No modifications were required, but it I'm going to tighten up the gap on the actual brackets on the seats so they fit a bit more snugly. I'm concerned that I'll have some rattling noises with them as is.
However, I've been tossing around the idea of mounting the extra Batts in the truck under the rear seats, but I'll need an extra inch or so to make that work. So if I decide to to that I'll end up doing something like Namosh did and "raise" the rear seats up a bit. I'm not fully positive yet, but I may be only able to fit 3 of the batts under the rear seats, so I may end up mounting 1 under the hood. I could easily pick up a diesel battery tray for the passenger side and put it there, and have the other 3 in the rear. We'll see how it plays out.

Here's a pic of the brackets. The bracket on the right is the factory orientation. Left bracket shows it simply flipped over allowing the rear seats to fully lay flat.


Also the slider to slider accordion seal showed up today (sorry no pic).

I also removed the current plastic tray like bedliner for a bit extra height clearance and took some measurements for max box dimensions. I can go 50" wide max, I'm willing to go up to 50" deep max, and I can go 21" to 21 1/4" high max. That should give me just enough height to stand the 18's straight up and not have to angle them, yay! At least now with these specs I can start designing the box.

I hope to get the rear wall and part of floor finished with sound deadener tomorrow, and then start planning out the box. And I hope to have decided on final battery placement too. When I have that done, I'll find some **** and the balls to cut my hole.

03-07-2010, 10:22 PM
That should be plenty of space. 21 tall is perfect man. Im excited. I like blowthroughs. What are your plans for strengthning up the back wall?

03-20-2010, 12:09 PM
Hey everyone sorry for the delay in updates but I've been pretty busy with other things around the house and work the past few weeks. However, I did manage to get a nice piece of copper and fab up some busbars for the rear batts, and I was able to draw up a box design I think I'm happy with, but might end up changing a thing or two.
Also yesterday I purchased the sheets of mdf and other needed supplies, and I'm heading out soon for a few more supplies, then I plan on starting the box today. I may end up cut done today too, we'll see.
And still no amp, so whenever I am done with the setup, I'll be strapping 2 of my AQ2200's to them for the meanwhile.



03-20-2010, 03:48 PM
why do u only have bracing on one side of the box? hope thats just u being lazy on the design :D

03-20-2010, 05:09 PM
Yes haha just being lazy with sketchup. And also being lazy in not mentioning my laziness.

03-24-2010, 03:52 PM
Can't wait to see more pix. Looking good so far.

03-28-2010, 10:47 AM
Hey all sorry for the delays again (like you really care haha), I must be the slowest project builder ever!
The box is not done yet, its partially completely and hopefully today I can get more done on it and start the fiberglass work on the inside.
Still no hole cut, but I do no how big it will be. I'm waiting to cut the hole last after the box is finished so the hole will be 100% accurate.
Still need to run the power and ground runs to the bed. I had the grounds ran, but they turned out to be just shy of being long enough so I had to remove them. Everything is an arm's length away, I just need some ambition!

Here's a few pics of when I was just beginning the box, sorry no mid-completion pics.


03-28-2010, 10:57 AM
lookin nice keep the words to a min. and the pics to a max.


04-02-2010, 09:05 AM
Well guys if all goes as expected, the build should be completed today! Lots of pics to come later, I forgot my camera at the shop this morning.

The box is about 80% done, and is fully fiberglassed inside. My RD D9 amp is en route via UPS to my house now. The wires are almost fully ran under the truck and to the back and back into the cab for the amp. The cut is being made today.

Will update later! I'm stoked!

04-04-2010, 02:56 AM
Well it's pretty much done and it's violent to say the least. My ears huuurt lol. Pics to come in a lil bit.

04-04-2010, 03:04 AM
done with no pics?

04-04-2010, 03:06 AM
Where did you buy the copper bars for your batterys?

04-04-2010, 03:11 AM
I'm posting from my iPhone so I can't post my pics yet.

I got the copper bar from storm copper.

04-04-2010, 03:12 AM
I'm posting from my iPhone so I can't post my pics yet.

I got the copper bar from storm copper.

should be an app for that...

04-04-2010, 03:39 AM
connecting 2 HC1400 batts in the rear of my car. do you think .25 inch thick copper plate will be fine for this application? 1inch wide - 12 inch long.

04-04-2010, 04:14 AM
That size bar should be fine for those batts, but it ultimately depends on the amperage draw. IIRC my bar is rated at over 600 amp.

04-04-2010, 04:44 AM
Better to be safe and perhaps leave a little wiggle room for an upgrade.

.25 x 2 x 12 times 2 should be just fine.

Thanks Dan

04-04-2010, 05:05 AM
Perhaps, if you google copper bar ampacity, theres a few nice charts out there that helped me decide.

04-04-2010, 05:06 AM
Alright here's the pics of the build process. Still need to clean up the wiring, get the other seat mounted, mount the RF amp, and get some bracing on the blow-thru port, it rattles a bit lol.

Here's what I came up with for wiring the subs.

Test wired to a .5 ohm load.

RD D9 amp

Started the box.

Fiberglass on the full inside of the box.

Subs mounted in box.

Hole's cut. Used a roto-zip and a sawzall.

Me installing the battery's. Love my bert n ernie shirt haha.

04-04-2010, 05:07 AM
Batt's term mounting for now until I get some angle stock and make a real batt tray/rack. Still doesn't look bad with the strap haha.


Installed for now, still need to fully finish.


Its loud! So far I love it. My grandmother called me about 11 pm and said turn it down b/c I woke her up and she's trying to sleep. She lives over 1/4 mile away haha.

Lemme know what you think, thanks!

04-04-2010, 05:51 AM
sweet! good stuff.

04-04-2010, 05:42 PM

04-04-2010, 10:02 PM
nice job man....vids?

04-04-2010, 10:14 PM
Looks good man! Wish my cut in the bed came out as nicely as yours as well. :( Just a few things...

How does the cover work with the box sitting so high?
Did you use an accordion boot between the cab and the bed? Or just the MDF? And how is the wood between the two working out, considering the bed and cab move independently?
Do you plan on 'glassing the outside of the box? I did on mine and I would on yours too...
And does your box resonate at all, laying in the bed? Mine does, and I can't figure out why. :(

04-04-2010, 10:17 PM
Box looks to tall.... what kind of cover are you going to use to prevent it from getting wet?

04-05-2010, 12:59 AM
Looks good man! Wish my cut in the bed came out as nicely as yours as well. :( Just a few things...

How does the cover work with the box sitting so high?
Did you use an accordion boot between the cab and the bed? Or just the MDF? And how is the wood between the two working out, considering the bed and cab move independently?
Do you plan on 'glassing the outside of the box? I did on mine and I would on yours too...
And does your box resonate at all, laying in the bed? Mine does, and I can't figure out why. :(

The tonneau cover I have is a bit higher than the bed and gives me just over 21" with it closed. It fits great, I'll snap some pics tomorrow.
Yes, I did use an accordion seal. I cut the hole in the cab a hair larger to allow for movement of the bed vs. cab. I also sealed the accordion seal first by using sound deadener around my cuts, and also using mopar weatherstrip adheasive.
Glassing the outside of the box is def. a possibility. I can have box out in about 15 minutes so I can easily glass it at a later date. For right now I just wanted it done and I ran out of glass.
I don't notice any resonance so far, but I did strap down the front part of the box to bed b/c it was rattling a bit on the bed floor.

Box looks to tall.... what kind of cover are you going to use to prevent it from getting wet?
I'll snap some pics tomorrow but my fiberglass cover is a bit taller than the bed, and gives me just over 21" of height.

Today in my spare time from Easter, I pulled the box back out and added some bracing to cab port, and painted that port at well. Looks much better now, and less rattle.

I'm going to try and find a rear window without the slider b/c mine is flexing way too much, I think a solid window would help.

I'm going to run to the local audio shop tomorrow and show it off. I know they have a meter, but IIRC its not a TL.

It did pull a hairtrick with my sister today, can't wait to get some vids.

04-05-2010, 07:34 PM

04-05-2010, 07:39 PM
looks good besides the wire coming through the port

04-05-2010, 07:40 PM
build looks sick as hell man

I love Dodge Rams, only kind of truck i would even consider buying if i ever had the use for one
keep up the sick work

04-14-2010, 01:30 AM

04-14-2010, 07:39 PM
dude, pics of sister ???? haha :D

Box looks good and loud :)

O.G. D-Wet
04-14-2010, 07:49 PM
...LOVE that rich RD SQ lol

04-21-2010, 02:29 AM
hmm this looks all to familure.. i like

04-22-2010, 08:23 PM

04-22-2010, 11:49 PM
...LOVE that rich RD SQ lol

Dude, ur retarded. I bet my RD subs sound a Shitload better than urs so back off.

Btw, nice build, we should meet up soon! Id love to hear it and give you a demo of mine.

04-23-2010, 12:33 AM
I'm down.

04-23-2010, 12:51 AM
Hit me up when ur free sometime

05-04-2010, 01:06 AM
Pretty much finished up the install a while back and took some updated pics today.


Rear seats in with seat belts, etc. I can carry 6 people if I need to which is nice. Its much louder when down, but still pretty loud when they are up. People say it hurts there back or its a nice back massage. One buddy said I hurt his fat roll lol.

Rear seats folded down. I trimmed the sound pad and put that back in as well. Cleans it up a bit.

RD D9 mounted under the large rear seat and RF amp mounted under the small rear seat. I still have full usage of both my cubby bins under both seats.



And I still haven't got it metered yet. They are hard to find around here. Its easily in the 150's though.

05-04-2010, 03:26 AM
sweet build man, blow through is the only way to go in our trucks.

i like that rear seat idea though. i may have to steal that idea for my truck, do they lock in place when up though?

05-04-2010, 03:43 AM
Yes they still fully lock. Its just a simple bracket flip and its good to go.

05-04-2010, 03:44 AM
BTW I'll take your tow mirrors, K thanks! lol.

05-04-2010, 05:39 AM
BTW I'll take your tow mirrors, K thanks! lol.

haha i actually just sold a set i had laying around

05-19-2010, 05:40 PM
Should be getting metered on the 30th.

05-20-2010, 04:01 AM
Interested in results, Im about to start a big blowthrough for a friends Quad Cab Ram.

05-20-2010, 09:20 PM
sweet nice job man looks like its loud

06-14-2010, 12:57 AM
150.1 peaking at 35hz lol. Meca at the headrest.

06-15-2010, 09:20 PM
I really like that. If I didnt need my bed I would deff be doing a blow through.

06-15-2010, 10:09 PM
Thanks. I'm not regretting cutting the bed at all. Its simply awesome having a truck as a 150db daily driver and still transporting 6 people if I have too. Besides I have several trailers at my disposal and I'm not shy to use them.

I let my dad borrow the truck a few weeks ago, he was selling his 1967 Chevelle. He towed it 4 hrs there and back at 75mph and never had a glitch.

06-16-2010, 03:56 AM
hell yea, i dont regret the cut through on my truck either.

looking forward to my new setup now :)

06-27-2010, 09:29 PM
Pulled a 125.2 on a Meca driveby spl comp today.

06-27-2010, 11:02 PM
awesome drive by numbers man. im still looking for an amp for my set up.....

06-30-2010, 10:28 PM
Looks great.

08-25-2010, 10:46 PM
Time to build a new box!! The current one is starting to come apart!