subs behind rear panels? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

vicko · 01-19-2005, 10:17 PM

I tried searching everything i could think of, but couldn't find the DIY guide to installing 10s in the backseat, behind the interior panels. i have someone who's willing to trade me 2 10s for my 12, and im sick of having no trunk space so i want to try out this mod. any help would be greatly appreciated.

mr_240sx · 01-19-2005, 10:57 PM

im not too familiar with the s14 interior/trunk but i found a nice idea even though it wasnt done as clean as i would like it but the idea was there!! The only draw back for you is that its for an s13! Just thought id put this idea out and it might give you an idea of something else. this set up is in the trunk but very little space is lost!http://memimage.cardomain.net/member...392404_118.jpg http://memimage.cardomain.net/member...392404_119.jpg http://memimage.cardomain.net/member...392404_120.jpg http://memimage.cardomain.net/member...392404_121.jpg http://memimage.cardomain.net/member...392404_122.jpg http://memimage.cardomain.net/member...392404_123.jpg

rrobe99999 · 01-20-2005, 07:04 AM

I've seen a thread somwhere where a guy put subs in the rear panels by the back seat. It was a lot of custom work, and it made the body panels rattle. I built an enclosure for my S14 that fits on the cargo shelf between the backseat and trunk. I wanted to fit 2 8" subs, but didn't have enough room and settled for just 1. The problem that I ran into was interference with the trunk hinges and bars. The length of the box is just short of the rear speakers. I ended up with only 0.5 CU FT of volume. It sounds good at normal volumes, but will "bottom out" if I crank it up. I really need to make it bigger by building a more irregular shape to extend it under the rear speakers and fill in more of the area. My Amp is mounted vertically by the jack with just enough room to get the jack when needed. I did a good job of saving trunk space and made a big improvement on my stereo's bass response. I don't need much 'cus I listen to heavy metal. This would not be a good option if you want "war drums" that anounce your presence to the hood.

smellslikecurry · 01-20-2005, 09:51 AM

http://www.240sx.org/links/installs/jcope/index.html

exactly what i did with the subs - worked perfectly

vicko · 01-20-2005, 11:10 AM

thanks, this is exactly what i was looking for
anyone got a better write up? this page has only kind of a blurb haha

Steeles · 01-20-2005, 11:26 AM

dunno but 8s fit in the door panels of S14s

minr trim work to the oem plastic and fits like a glove. even hides behind the factory grills

projectRDM · 01-20-2005, 05:19 PM

Quote:

Originally Posted by Steeles

dunno but 8s fit in the door panels of S14s

minr trim work to the oem plastic and fits like a glove. even hides behind the factory grills

Sound good too. If the fool would only get a decent amp on them.

NismoDan · 01-20-2005, 07:04 PM

Anyone got info on this sort of install for an S13 coupe??

CKAMC · 01-20-2005, 08:33 PM

Right now I am working on a fiberglass mold right now that will attack to the trunk and cut some holes into the carpet in the trunk and lay 2 10's and then recarpet the trunk to hide any gaps and place some Subwoofer grilles to top off the seams between the speakers and the carpet and protect the subs some what from trunk junk. if you dont install a rear strut bar then the area where one would lay over would be great to place them, or along the sides or back. *shrugs* just some ideas you can always use a box instead of fiberglass if you cant go high dollar

MakotoS13 · 01-20-2005, 08:49 PM

if i had CAD i'd show you my design i'm currently working on. it invcorporates a rear seat delete into the mix. i might mount the subs under the rear plastic panels. they're only 8" subs do you guys think they'd be okay under there? i haven't looked at that area much.

Steeles · 01-20-2005, 09:57 PM

Quote:

Originally Posted by R240NA

Sound good too. If the fool would only get a decent amp on them.

he's got a killer fucking soundstream amp sitting in his damn closet. thats the sad part!

kaje36 · 01-20-2005, 10:11 PM

I was thinking of doing the same thing a while agow.. but I was talking to a friend of mine that did competitions and built boxes.. he was sayin that it wasnt a good idea to place the subs so they fire at eachother becouse it will lessen the volume and distort the sound. while it still could be better then what you wanted,.. it isnt what you payed for equipment wise.

I am curently working on a setup of mounting 3 8's in the passthrew with a custom removable box for when I want to save some weight on the autoX course. I customized a ebay rear STB to mount toward the back of the passthrew almost touching the trunk hinges. I beleave I will be close to the 1 or 0.75cuft per sub they ask for ( I cant remember exactly ) I was goinna use that space behind the panneling to mount my amps and keep all that hidden with alot of airflow.

some of you might be thinking I am insane.. but autoX tires are big and I need the the trunk space for tools and tire,.. and the back seat for tires and I didnt wanna have to cary my box up 3 floors along with the tires back down every time I raced.

shawn_16 · 01-21-2005, 12:10 AM

got any pics of your system, Steeles?

Steeles · 01-21-2005, 12:21 AM

Quote:

Originally Posted by shawn_16

got any pics of your system, Steeles?

not my system that has that setup

mines pretty basic. I got infinity Kappas all around. components up front coaxials in the rear all fed of the kenwood reciever and a infinity basslink powered sub in the trunk.

nothing fancy.

drivenlegend · 01-22-2005, 11:44 PM

I pulled everything out of my 98 to do this, I got the idea from the website already mentioned from 240sx.org. Once I got it all pulled apart, I decided not to do it because the area behind the panel would not be really feasible to seal properly. I guess you could use a free-air sub, but I was afraid that there would be air movement noise from all of the open areas. Behind the panel, it runs above the wheelwell all the way into the trunk, and etc. I just didn't see any way to seal it all up properly. My IDQDVC's aren't rated for any free-air use so I just decided to go old school with a box in the trunk.

Oh well.....

CoasTek240 · 01-23-2005, 01:15 AM

Quote:

Originally Posted by Steeles

not my system that has that setup

mines pretty basic. I got infinity Kappas all around. components up front coaxials in the rear all fed of the kenwood reciever and a infinity basslink powered sub in the trunk.

nothing fancy.

steeles, that is exactly what i want man.
What size components do you have up front?
i want to put the infinity kappa components set up front on my 92 coupe, but i was told the 6.5" are a lil too big unless i do a lot of trimming and custom work. dont they have a 5.25" component set as well?

I already have the kappa coaxials in the rear deck lid.
I also have a Kenwood excelon deck.
my question is where did you install your tweeters? on the door?

Steeles · 01-23-2005, 01:09 PM

Quote:

Originally Posted by CoasTek240

steeles, that is exactly what i want man.
What size components do you have up front?
i want to put the infinity kappa components set up front on my 92 coupe, but i was told the 6.5" are a lil too big unless i do a lot of trimming and custom work. dont they have a 5.25" component set as well?

I already have the kappa coaxials in the rear deck lid.
I also have a Kenwood excelon deck.
my question is where did you install your tweeters? on the door?

well mines a 95se so I have everything in factory locations. oversized 6.5 with the seperate tweeters in the a pillar up front, oversized 6.5 in the rear decklid. I miss my amp though. they sounded soooo much better with the amps. but I keep blowing amps up.... but I digress

Wasnt there a post on here somewhere about someone fitting a 5.25 in the door of an S13?

420sx · 01-23-2005, 02:52 PM

wait wait, what about fittin 8 inch in s14 doors? how did u do the amp wiring??

michael1284 · 01-23-2005, 03:37 PM

Heres Mine, I took out the spare tire and put this in.
http://www.wtfm8.net/chengstA/240sx/sub.JPG

CKAMC · 01-23-2005, 04:04 PM

hey michael if you put a bit of plexi and drill some holes into the plexi and the place the plexi over your sub and amps you can then still use the trunk... just dont let any fluids roll around back there. heck after you put in the plexi u can put in some carpet *just pokes lots of small holes where the sub will be covered* and you will have a "sleeper" look

just my opinion but sleeper style/ still being able to use your truck space = smart

01-19-2005, 10:17 PM	#1
vicko Leaky Injector Join Date: Feb 2004 Location: Vegas Posts: 88 Trader Rating: (1) Feedback Score: 1 reviews	subs behind rear panels? I tried searching everything i could think of, but couldn't find the DIY guide to installing 10s in the backseat, behind the interior panels. i have someone who's willing to trade me 2 10s for my 12, and im sick of having no trunk space so i want to try out this mod. any help would be greatly appreciated.

01-20-2005, 11:26 AM	#6
Steeles Post Whore! Join Date: Sep 2002 Location: 7th layer of hell, special pit of anger Age: 49 Posts: 3,785 Trader Rating: (0) Feedback Score: 0 reviews	dunno but 8s fit in the door panels of S14s minr trim work to the oem plastic and fits like a glove. even hides behind the factory grills __________________ Keeping it Godzira bishes. So I murdered another turbo

01-20-2005, 07:04 PM	#8
NismoDan Zilvia Junkie Join Date: Feb 2004 Location: SF Posts: 310 Trader Rating: (0) Feedback Score: 0 reviews	Anyone got info on this sort of install for an S13 coupe?? __________________ C4L #34

01-20-2005, 08:33 PM	#9
CKAMC Post Whore! Join Date: Mar 2004 Location: Desert Age: 38 Posts: 4,804 Trader Rating: (0) Feedback Score: 0 reviews	Right now I am working on a fiberglass mold right now that will attack to the trunk and cut some holes into the carpet in the trunk and lay 2 10's and then recarpet the trunk to hide any gaps and place some Subwoofer grilles to top off the seams between the speakers and the carpet and protect the subs some what from trunk junk. if you dont install a rear strut bar then the area where one would lay over would be great to place them, or along the sides or back. shrugs just some ideas you can always use a box instead of fiberglass if you cant go high dollar __________________

01-23-2005, 02:52 PM	#18
420sx Post Whore! Join Date: Jun 2004 Location: Texas Age: 42 Posts: 3,960 Trader Rating: (0) Rides Gallery: 420sx Feedback Score: 0 reviews	wait wait, what about fittin 8 inch in s14 doors? how did u do the amp wiring?? __________________ hydropgrahics! ls1......

01-19-2005, 10:57 PM	#2
mr_240sx Post Whore! Join Date: Nov 2004 Location: Ottawa Age: 38 Posts: 6,320 Trader Rating: (4) Rides Gallery: mr_240sx Feedback Score: 4 reviews	im not too familiar with the s14 interior/trunk but i found a nice idea even though it wasnt done as clean as i would like it but the idea was there!! The only draw back for you is that its for an s13! Just thought id put this idea out and it might give you an idea of something else. this set up is in the trunk but very little space is lost!http://memimage.cardomain.net/member...392404_118.jpg http://memimage.cardomain.net/member...392404_119.jpg http://memimage.cardomain.net/member...392404_120.jpg http://memimage.cardomain.net/member...392404_121.jpg http://memimage.cardomain.net/member...392404_122.jpg http://memimage.cardomain.net/member...392404_123.jpg

01-20-2005, 07:04 AM	#3
rrobe99999 Zilvia Member Join Date: Jul 2003 Location: Destin, Fl Posts: 262 Trader Rating: (0) Feedback Score: 0 reviews	I've seen a thread somwhere where a guy put subs in the rear panels by the back seat. It was a lot of custom work, and it made the body panels rattle. I built an enclosure for my S14 that fits on the cargo shelf between the backseat and trunk. I wanted to fit 2 8" subs, but didn't have enough room and settled for just 1. The problem that I ran into was interference with the trunk hinges and bars. The length of the box is just short of the rear speakers. I ended up with only 0.5 CU FT of volume. It sounds good at normal volumes, but will "bottom out" if I crank it up. I really need to make it bigger by building a more irregular shape to extend it under the rear speakers and fill in more of the area. My Amp is mounted vertically by the jack with just enough room to get the jack when needed. I did a good job of saving trunk space and made a big improvement on my stereo's bass response. I don't need much 'cus I listen to heavy metal. This would not be a good option if you want "war drums" that anounce your presence to the hood.

01-20-2005, 09:51 AM	#4
smellslikecurry Post Whore! Join Date: May 2003 Location: bangladesh Age: 38 Posts: 4,590 Trader Rating: (33) Feedback Score: 33 reviews	http://www.240sx.org/links/installs/jcope/index.html exactly what i did with the subs - worked perfectly

01-20-2005, 11:10 AM	#5
vicko Leaky Injector Join Date: Feb 2004 Location: Vegas Posts: 88 Trader Rating: (1) Feedback Score: 1 reviews	thanks, this is exactly what i was looking for anyone got a better write up? this page has only kind of a blurb haha

01-20-2005, 08:49 PM	#10
MakotoS13 BANNED Join Date: Jan 2004 Location: Texas Age: 42 Posts: 4,205 Trader Rating: (0) Feedback Score: 0 reviews	if i had CAD i'd show you my design i'm currently working on. it invcorporates a rear seat delete into the mix. i might mount the subs under the rear plastic panels. they're only 8" subs do you guys think they'd be okay under there? i haven't looked at that area much.

01-20-2005, 10:11 PM	#12
kaje36 Leaky Injector Join Date: Oct 2003 Location: new hampshire Age: 43 Posts: 149 Trader Rating: (2) Feedback Score: 2 reviews	I was thinking of doing the same thing a while agow.. but I was talking to a friend of mine that did competitions and built boxes.. he was sayin that it wasnt a good idea to place the subs so they fire at eachother becouse it will lessen the volume and distort the sound. while it still could be better then what you wanted,.. it isnt what you payed for equipment wise. I am curently working on a setup of mounting 3 8's in the passthrew with a custom removable box for when I want to save some weight on the autoX course. I customized a ebay rear STB to mount toward the back of the passthrew almost touching the trunk hinges. I beleave I will be close to the 1 or 0.75cuft per sub they ask for ( I cant remember exactly ) I was goinna use that space behind the panneling to mount my amps and keep all that hidden with alot of airflow. some of you might be thinking I am insane.. but autoX tires are big and I need the the trunk space for tools and tire,.. and the back seat for tires and I didnt wanna have to cary my box up 3 floors along with the tires back down every time I raced.

01-21-2005, 12:10 AM	#13
shawn_16 Zilvia Member Join Date: Sep 2002 Location: Bremerton, WA Posts: 156 Trader Rating: (1) Feedback Score: 1 reviews	got any pics of your system, Steeles?

01-22-2005, 11:44 PM	#15
drivenlegend Zilvia Member Join Date: Jan 2004 Location: Tulsa, OK Posts: 231 Trader Rating: (0) Feedback Score: 0 reviews	I pulled everything out of my 98 to do this, I got the idea from the website already mentioned from 240sx.org. Once I got it all pulled apart, I decided not to do it because the area behind the panel would not be really feasible to seal properly. I guess you could use a free-air sub, but I was afraid that there would be air movement noise from all of the open areas. Behind the panel, it runs above the wheelwell all the way into the trunk, and etc. I just didn't see any way to seal it all up properly. My IDQDVC's aren't rated for any free-air use so I just decided to go old school with a box in the trunk. Oh well.....

01-23-2005, 03:37 PM	#19
michael1284 Zilvia Member Join Date: Mar 2003 Location: Dallas Posts: 243 Trader Rating: (0) Feedback Score: 0 reviews	Heres Mine, I took out the spare tire and put this in. http://www.wtfm8.net/chengstA/240sx/sub.JPG

01-23-2005, 04:04 PM	#20
CKAMC Post Whore! Join Date: Mar 2004 Location: Desert Age: 38 Posts: 4,804 Trader Rating: (0) Feedback Score: 0 reviews	hey michael if you put a bit of plexi and drill some holes into the plexi and the place the plexi over your sub and amps you can then still use the trunk... just dont let any fluids roll around back there. heck after you put in the plexi u can put in some carpet just pokes lots of small holes where the sub will be covered and you will have a "sleeper" look just my opinion but sleeper style/ still being able to use your truck space = smart __________________

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode