Welcome to the North American Subaru Impreza Owners Club Friday August 29, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC General > Car Audio, Video & Security

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 04-05-2004, 10:32 PM   #1
terrorofvalhalla
Scooby Newbie
 
Member#: 58239
Join Date: Mar 2004
Location: Jax/Deland fl
Vehicle:
2003 Imprezza Wrx
Blue

Default Sound deadening

about how many square feet are needed to cover a wrx wagon? and also does anyone know a good lower cost alternative to some of the seemingly over priced products?
* Registered users of the site do not see these ads.
terrorofvalhalla is offline   Reply With Quote
Old 04-05-2004, 10:34 PM   #2
redwagon
Scooby Specialist
 
Member#: 2181
Join Date: Aug 2000
Chapter/Region: SCIC
Location: So Cal
Vehicle:
2008 SpecB
DGM

Default

redwagon is offline   Reply With Quote
Old 04-05-2004, 11:31 PM   #3
Aaron'z 2.5RS
Scooby Guru
 
Member#: 1026
Join Date: Mar 2000
Chapter/Region: MWSOC
Location: Hickigan
Vehicle:
'00 RS/WRX Stg5
'98 RS Stock

Default

^^^^




Aaron'z 2.5RS is online now   Reply With Quote
Old 04-06-2004, 07:15 AM   #4
offset
Scooby Guru
 
Member#: 32636
Join Date: Feb 2003
Chapter/Region: MWSOC
Location: Dayton, OH
Vehicle:
2004 Impreza STi
Silver/Silver

Default

Here, I will help you out with the whole search thing some...

http://forums.nasioc.com/forums/show...434857#newpost

offset
offset is offline   Reply With Quote
Old 04-06-2004, 08:38 AM   #5
NicEJ25
Scooby Specialist
 
Member#: 26155
Join Date: Oct 2002
Chapter/Region: E. Canada
Location: Levis,qc,ca
Vehicle:
2008 WRX 5dr
Dark Grey

Default

http://www.b-quiet.com/

cheaper than dynamat, as effective. or you can get a bit less effective, lighter and even cheaper. sound deadening make so much difference that I bet the difference between brand would be barely audible, so, it will be bquiet xtreme for me in a couple of month...
NicEJ25 is offline   Reply With Quote
Old 04-06-2004, 10:40 AM   #6
Aaron'z 2.5RS
Scooby Guru
 
Member#: 1026
Join Date: Mar 2000
Chapter/Region: MWSOC
Location: Hickigan
Vehicle:
'00 RS/WRX Stg5
'98 RS Stock

Default

It's all the same in basic function, having a name on it isn't overly important..... I found this http://www.partsexpress.com/webpage....r=47&sm=1&so=2 At www.partsexpress.com Very inexpensive... They carry Cascade deadening product as well...
Aaron'z 2.5RS is online now   Reply With Quote
Old 04-06-2004, 12:07 PM   #7
chrislehr
Scooby Specialist
 
Member#: 24165
Join Date: Sep 2002
Location: ATX
Vehicle:
2003 WRX Sedan
World Rally Blue

Default

search ebay for raammatt
chrislehr is offline   Reply With Quote
Old 04-06-2004, 06:06 PM   #8
FLEX
Scooby Newbie
 
Member#: 19402
Join Date: May 2002
Location: Seattle, WA
Vehicle:
2002 WRX
Silver

Default

I just bought some raammat from rick, lemme know if you want his email. He only has 63sq foot rolls tho. but its way cheaper than dynamat and just as good.
FLEX is offline   Reply With Quote
Old 04-06-2004, 09:40 PM   #9
offset
Scooby Guru
 
Member#: 32636
Join Date: Feb 2003
Chapter/Region: MWSOC
Location: Dayton, OH
Vehicle:
2004 Impreza STi
Silver/Silver

Default

Quote:
Originally posted by FLEX
I just bought some raammat from rick, lemme know if you want his email. He only has 63sq foot rolls tho. but its way cheaper than dynamat and just as good.
I can vouch that Rick is extremely good to deal with. I bought some RAAMmat from him, and he was very helpful with all of my questions. Now I just need to find the time to get the damn stuff installed.

offset
offset is offline   Reply With Quote
Old 04-06-2004, 09:45 PM   #10
Rapid_Roo
Scooby Guru
 
Member#: 31511
Join Date: Jan 2003
Chapter/Region: SCIC
Location: W|LA. Ca.
Vehicle:
03 GD2 95 GM4
www.ITNRally.org

Default

Yeah Rick @ Raamat is very cool to deal with. I can't comment on the product, I have a big box of it sitting there in the garage waiting for me to have time to install it.

RR
Rapid_Roo is offline   Reply With Quote
Old 04-07-2004, 12:05 AM   #11
badkid
Scooby Newbie
 
Member#: 42275
Join Date: Aug 2003
Location: Los Angeles
Vehicle:
2004 WRX Wagon
Platinum Silver

Default

RAAMmat is outstanding stuff and Rick is very quick and responsive.

How much do you need? Depends on what you're doing. The soundproofing/damping on the WRX is horrible. I put two layers on my roof, three on my front door outer panels, two on my rear door outer panels, one door on the inner panels of the doors, one or two layers on the car floor, two layers covering the wheel wells, two layers in the rear cargo area floor.

*whew* Went through three rolls. Great for damping your stereo. Also great for cutting down noise from rain drops hitting your roof. Makes your door and wagon rear shut with a nice thud. But for cutting down road noise, laying down carpet padding or soundproofing composite foam on the floor is much more effective.

I love my engine noise, but I need to find a way to cut down on that a little.... Maybe dynamat hoodliner....
badkid is offline   Reply With Quote
Old 04-07-2004, 12:58 AM   #12
Cadaver
Scooby Newbie
 
Member#: 59015
Join Date: Apr 2004
Location: Houston
Vehicle:
2004 WRX
Blue

Cool Poor Mans Dampening

If you don't have the green to spend on any of the stick-on products, just use a roll-on bedliner that can be purchased at any autoparts store. Your not really blocking the sound of the road or tires, but in fact preventing the resonance (vibration) of the sheetmetal. The bedliner makes the sheetmetal more rigid and thus "dampens" the vibration that is created. This will be a weekend project because of the removal of carpet etc but is well worth it. Invite a buddy over for a 12 pack and some stinky fun...

Keep in mind that the money you would spend on the latter is worth it. I myself save up and use the expensive stuff because it really does work better than any of the less expensive ways. This is actually one of the instances where you get what you pay for...
Cadaver is offline   Reply With Quote
Old 04-07-2004, 01:10 AM   #13
baltik
Scooby Newbie
 
Member#: 58166
Join Date: Mar 2004
Default

Can you huys reccomend a product for cutting down road/tire noise only? Not particularly interested in the audio effects (no sub etc)
baltik is offline   Reply With Quote
Old 04-07-2004, 02:14 AM   #14
raamaudio
Scooby Specialist
 
Member#: 50340
Join Date: Dec 2003
Location: Morgan Utah
Vehicle:
05 FXT
Crystal Grey Metalic

Default

Using whatever brand you wish, these instuctions still apply and will greatly reduce road noise in any vehicle, even a new $200k+ Bently, my buddy did one in his shop last year.

Here is what I recommend, this is from years of experience and alot of customer feedback, it works very well.

-Front doors, doors with speakers, remove door panel and plastic moisture barier, toss it in the trash.
-One layer of mat on most of the outer door skin, overlap the seems, add two more smaller layers, about 12" sq, behind the speakers. Then the same size piece of close cell foam on top of those layers(ensulite foam is best.
-Check for loose wires, cables, etc, inside the door, secure with foam tape, tie wraps, etc. build up the speaker mounting location by making a solid baffel that you can screw to the door then the speakers to it, MDF works great and easy to work with.
-Seal up the door access holes with a piece of tin, I use perforated aluminum, this gives the next layer of mat something to stick to and tightens up the midbass response.
-Install one layer of mat over the inner door metal, seal all air passages possible, cut the mat back around 1" from edge of door panel.
-Add a layer of 1/8" close cell foam, ensulite again is best but hard to find, to the top of the mat, cut around all mounting points, same for the mat, to make sure the door panel will fit back on ok, cut back around 1/2" from edge of panel.
-Tap on the back of the door panel, being plastic it will have resonate areas. Add patches of mat to those areas until it sounds deadened, usually about 1/4 to 1/3 of the surface is enough, install the panel and test the the door, slam it a few times and listen for rattles, etc.

Rear doors, as the front, if they have speakers in them.

Doors without speakers, just mat the inner door metal, covering the access holes, like above no need to mat the outer door skin.

Rear side panels, outer metal skin, foam, varies from vehicle to vehicle, try to seal up the best you can like the doors.

Rear hatch, same as above.

Floor, One layer everywhere, tap on the floor and add a second and sometims a third layer to the resonate areas only, any more is a waste of mat and effort, once and area is deadened, there is nothing more to gain with adding more mat.
-Some tend to over use the mat in some areas and not enough in others.
-Add a layer of 1/4" close cell foam or two layers of 1/8" then the factory carpet, done!

Notes:

Doors, I usually add a 1" sq steel thin wall tube behind the speaker baffel, mounted diagonally, I use self taping screws to drill through the factory inner door metal and into the tubing. This really stiffens up the speaker mounting area and improves midbass response.

If you want to go all out on the floor, you can add do a layering effect over the really resonate areas of the floor. One layer of mat, a layer of foam, another layer of mat then another layer of foam, only use 1/8" foam so the floor does not get to high for the carpets to fit back in. This method will absorb even more accoustical energy but mainly used for all out comp car installs.

Roof, not usually needed, least results, alot of effort, once the rest is done, test and decide what to do. On a black or very dark vehicle, a tremendous amount of heat build up can occur on the roof, one layer is the maximum I would use the cover it then add a solid layer of close cell foam.

The material is very important but install is even more so

Rick
raamaudio is offline   Reply With Quote
Old 04-07-2004, 12:28 PM   #15
mark925
Scooby Newbie
 
Member#: 56872
Join Date: Mar 2004
Vehicle:
2004 WRX Wagon
Silver

Default

Rick (or anyone else with experience!)-

Primarily I want to reduce road noise, exhaust noise, and engine noise

I've been debating installing Raammat in my 2004 WRX Wagon, but I'm concerned that I'll end up regretting putting in hours of work for a result that's less than satisfying. I'm especially concerned that I may end up with new problems like unexpected rattles or ill fitment of replaced parts.

Should I Raammat? This appears to offer little benefit in reducing noise. And I'm not too picky about audio (though I am upgrading my system).

Should I just install some carpet pad on the floor to reduce road noise?

Should I do nothing and save myself a lot of hassle?

Thanks!

Mark
mark925 is offline   Reply With Quote
Old 04-07-2004, 02:00 PM   #16
raamaudio
Scooby Specialist
 
Member#: 50340
Join Date: Dec 2003
Location: Morgan Utah
Vehicle:
05 FXT
Crystal Grey Metalic

Default

(This is not an advertisement, the same rules apply no matter what product brand you choose

No offense intended but whatever you do, it has to be done correctly to get the desired results. If the instructions above are followed I garantee a huge reduction in road noise and a great improvement in the sound quality of the audio system.

This method has been done in hundreds of installs from Miata's to a quad cab F350 Diesel dually with a great level of success. Miatas and F350s both being quite a challenge, I have personally done one of each as well as many other vehicles in between. I am now including these instructions with all emails going to new contacts and will be printing them out to include in them in future shipments.

If you have unsatisfactory results let me know exactly what you have done and I will personally guide you through the steps to get the results you should expect to acheive

Read the line again about exhaust though, it is impossible to reduce to a high degree the level of a really loud exhaust system. It just does not matter what you do and believe me, I have tried to many many times and I specialize in noise reduction. Besides a loud exhaust just gets more of the bad kind of attention, I like a nice sound but not loud on any car or truck, what I always go for, can have more fun that way

Rick
raamaudio is offline   Reply With Quote
Old 04-07-2004, 03:06 PM   #17
mark925
Scooby Newbie
 
Member#: 56872
Join Date: Mar 2004
Vehicle:
2004 WRX Wagon
Silver

Default

Thanks Rick!

I'm going to place an order for Raammat on Ebay today.

I've also ordered:
-MB Quart PCE-216 6.5" for the front
-JL Audio 300/4 Amp under the passenger seat for the fronts and bridged for the sub
-JL 10W0 in a custom built box (by Kevin) in the cargo area.
-Keeping stock HU and rears which I'll run of the HU as fill.

So while I've got the doors off, I'll start by Raammatting those.

Mark
mark925 is offline   Reply With Quote
Old 04-07-2004, 03:39 PM   #18
chrislehr
Scooby Specialist
 
Member#: 24165
Join Date: Sep 2002
Location: ATX
Vehicle:
2003 WRX Sedan
World Rally Blue

Default

How do you apply mat to the "exterior shell" of the door? The WRX doors are pretty tight quarters to begin with...

Also, some application tips would be good.. I have heard wooden rollers and hair dryers in the past...
chrislehr is offline   Reply With Quote
Old 04-07-2004, 03:58 PM   #19
offset
Scooby Guru
 
Member#: 32636
Join Date: Feb 2003
Chapter/Region: MWSOC
Location: Dayton, OH
Vehicle:
2004 Impreza STi
Silver/Silver

Default

Quote:
Originally posted by raamaudio
-One layer of mat on most of the outer door skin, overlap the seems, add two more smaller layers, about 12" sq, behind the speakers. Then the same size piece of close cell foam on top of those layers(ensulite foam is best.
Hi Rick, thanks for posting the info. I still haven't done my RAAMMatt yet; but I had a question concerning the foam. Do you happen to know a good place to get foam. I have found different types, but I am not sure what the best stuff is or where to get it or what a good price is supposed to be.

TIA,
offset
offset is offline   Reply With Quote
Old 04-07-2004, 08:07 PM   #20
Schlad
Scooby Newbie
 
Member#: 25433
Join Date: Sep 2002
Location: SoCal
Vehicle:
2003 WRX SW
all we'll drive

Default

Quote:
Originally posted by chrislehr
How do you apply mat to the "exterior shell" of the door? The WRX doors are pretty tight quarters to begin with...

Also, some application tips would be good.. I have heard wooden rollers and hair dryers in the past...
It's not that bad. Well, if you have huge forearms, it might be a problem. But with the window glass up, there is quite a big hole near the latch part of the door. Also, take off the speaker and use that as access hole. Just stick your hand in there and spread your fingers to measure the gap you need to cut the material to. I'd type up a step-by-step thing here, but every time I invest that kind of time, it just seems to disappear into the archive world.
Schlad is offline   Reply With Quote
Old 04-07-2004, 09:18 PM   #21
chrislehr
Scooby Specialist
 
Member#: 24165
Join Date: Sep 2002
Location: ATX
Vehicle:
2003 WRX Sedan
World Rally Blue

Default

Quote:
Originally posted by Schlad
It's not that bad. Well, if you have huge forearms, it might be a problem. But with the window glass up, there is quite a big hole near the latch part of the door. Also, take off the speaker and use that as access hole. Just stick your hand in there and spread your fingers to measure the gap you need to cut the material to. I'd type up a step-by-step thing here, but every time I invest that kind of time, it just seems to disappear into the archive world.
If you want, email me as many details and/or pics.... and I will permanently host so you can just send/post a URL in the future..
chrislehr is offline   Reply With Quote
Old 04-07-2004, 09:57 PM   #22
redwagon
Scooby Specialist
 
Member#: 2181
Join Date: Aug 2000
Chapter/Region: SCIC
Location: So Cal
Vehicle:
2008 SpecB
DGM

Default

Regarding the road noise control, matting the floor doesn't seem to make a huge difference on the Impreza since the floor is pretty stiff. A layer or two of mat on the wheel wells helps, but I think it's working more as a barrier than a damper there.
A layer of carpet pad is the best bang for the buck on the floor. Improve on that with a barrier layer of vinyl over the top. Make sure to as far up the firewall as you can, and to completely cover the transmission tunnel. You have to cut some pieces to fit around the e-brake and shifter to get the full benefit. An extra layer of padding on the floor in the cargo area helps a lot with a wagon since the rear subframe is basically bolted right to it. I used a thick felt pad under there and the rubber cargo tray to good effect. You only have to remove the sill trims, center console and seats to get the carpet up. There's not much chance of misplacing anything or making any new rattles. Just be careful with the clips on the sill trims
Matting the doors doesn't help that much with road noise but it's essential for midbass and cutting resonance. The foam behind the door card helps some with noise. You can also stuff the cargo door cavity with carpet pad. I might go into the trim in the sides of the cargo area next and mat/pad that whole area.

Quieter tires will help, and as Rick mentions, a noisy muffler is almost impossible to keep out of the cabin. There's no point to doing all this work if you're going to run a coffee can.

BTW, do a search on the stock WRX HU before you commit to keeping it. It's not exactly winning any popularity contests around here
redwagon is offline   Reply With Quote
Old 04-07-2004, 10:31 PM   #23
Mr.Hanky
Scooby Specialist
 
Member#: 22053
Join Date: Jul 2002
Location: North New Joisey
Vehicle:
2002 Black WRX Wagon
Stage 3, Element Tuned

Default

Ok I'll play devils advocate cause someone has to.
When I had my stereo installed I asked about dynamat and the owner told me it was "bull*****, don't waste your money".

They are a very reputable place and have been in business a long time. Anyone else hear this?

Steve..
Mr.Hanky is offline   Reply With Quote
Old 04-07-2004, 10:35 PM   #24
redwagon
Scooby Specialist
 
Member#: 2181
Join Date: Aug 2000
Chapter/Region: SCIC
Location: So Cal
Vehicle:
2008 SpecB
DGM

Default

Sounds to me like they like they didn't feel like tearing your car apart to mat it, or they didn't think you would spring for it, or maybe your install just didn't warrant it... What did you have installed?
redwagon is offline   Reply With Quote
Old 04-07-2004, 11:17 PM   #25
mark925
Scooby Newbie
 
Member#: 56872
Join Date: Mar 2004
Vehicle:
2004 WRX Wagon
Silver

Default

Thanks for the advice Redwagon!

Can you describe what type of vinyl you mean and where to buy?

Did you use any adhesive?

Is your carpet puffy and uneven now?

I'm thinking of using that multicolored/recycled type of foam carpet pad you buy in a roll at Home Depot. Is that what you recommend?
mark925 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sound deadening? T-REX Vancouver Impreza Club Forum -- VIC 12 11-07-2009 01:02 PM
where can I buy sound-deadening mats (cheap)? yuusaku Vancouver Impreza Club Forum -- VIC 11 07-21-2001 12:03 PM
Lightest (and cheapest) sound deadening material? Alex RS Car Audio, Video & Security 14 04-30-2001 05:49 AM
Sound Deadening assena Car Audio, Video & Security 3 04-04-2001 05:15 AM
Anybody interested in helping me install sound deadening material in my WRX? drklahn Texas Impreza Club Forum -- TXIC 3 03-30-2001 05:47 AM


All times are GMT -4. The time now is 02:04 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.