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Project sound insulation - 6G Celicas Forums

Topic #61981 220 posts Started by GotToyota
Alright guys, I decided to tackle a project similar to what a member on here did by getting rid of some noise with a carpeting material. I'm attempting the same thing, except with my door panels and rear panels. I went to Home Depot and bought a 6'x9' roll of carpet padding for $30, along with a can of 3M rubber and vinyl spray adhesive. I already tried to deaden the sound a bit by using some extra Dynamat I had, but it didn't help much at all. Spray the door panel on the areas where you will be placing the padding, then rip pieces to the size of your choice and place accordingly. WARNING: You might want to let these panels sit overnight, because the smell isn't too pleasant.

Pics of the materials:


Starting door panel:


Door panel finished:


After I get everything finished I'll let you guys know how well this worked. I spent $40 in materials with tax, so it would be a pretty cheap solution to getting rid of some exterior road noise. Not the prettiest solution, but I feel it should help out greatly.

-Matt
I put the interior back in and put the car to the test on the highway. I must say that it's almost silent now. I will still have some slight noise though due to the lowering and my 17's. I would say that it's VERY MUCH worth the $40. I will be using what I have left to put under my carpet whenever I get brave enough to pull it out.

-Matt
sometimes cheap works better that expensive.

that foam absorbs the noise so well. Has anybody ever seen a quiet room? They use foam. I like that idea for my doors. will try it

Learned a lot in 10 years...I hardly log in anymore, last loginToday Sept 6 2019, and I was forced just to clarify a post. LOLIf you PM me and I dont respond, dont fret or cry. Im alive, better post your questions in the thread below, maybe I log back in2grfe Swapped...Why I chose the 2GR, before you ask read here...A great civilization is not conquered from without until it has destroyed itself from within.@llamaraxing in Instagram is the best way to find me. I hardly log here anymore.
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QUOTE (njccmd2002 @ Sep 14, 2008 - 10:44 AM) *
>sometimes cheap works better that expensive.

that foam absorbs the noise so well. Has anybody ever seen a quiet room? They use foam. I like that idea for my doors. will try it

It worked wonders on my panels. I also stuffed some in the paneling where the rear speakers go.

I'd like to put some under the carpet, how difficult is it to take out?

-Matt
3 hour job.

1.5 to take out and 1.5 to put in

have to take the center console out, etc ill be painting mine very soon

This post has been edited by njccmd2002: Sep 14, 2008 - 1:47 PM

Learned a lot in 10 years...I hardly log in anymore, last loginToday Sept 6 2019, and I was forced just to clarify a post. LOLIf you PM me and I dont respond, dont fret or cry. Im alive, better post your questions in the thread below, maybe I log back in2grfe Swapped...Why I chose the 2GR, before you ask read here...A great civilization is not conquered from without until it has destroyed itself from within.@llamaraxing in Instagram is the best way to find me. I hardly log here anymore.
cool idea, ill prob give it a try in the summer. how heavy is the material?
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QUOTE (D_Dawg @ Sep 14, 2008 - 9:36 PM) *
>cool idea, ill prob give it a try in the summer. how heavy is the material?

Not very, I'm sure overall it maybe added 6-7 lbs? The doors do feel slightly heavier.
did you dynamat the plastic/leather door covers before putting on the carpet stuff?

You say you don't understand how we go dumb, but have you ever been where i'm from?-=-] Livin it in tha bay's a lil different [-=-
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QUOTE (CaliJeff @ Sep 14, 2008 - 10:36 PM) *
>did you dynamat the plastic/leather door covers before putting on the carpet stuff?

Yeah, but I did that nearly a year ago. It didn't do as well as I had hoped, but the padding FAR exceeded my expectations and I'd say it's better than Dynamat as well as more cost efficient.
well what most people dont understand is that the dynamat doesnt act as a noise barrior like the padding does, the mat is to weigh down the pannels so the speakers and bass do not flex the pannel and it helps reduce distortion flexing.
Aye: dampening = weight, to reduce resonance and sympathetic vibration. Insulation = absorption, to reduce transmission.

The one that's popular on Corvette forums, which I'll do once my Focal door speakers come in, is duct insulation. It's a foam backed by foil, self-adhering. The idea is that the road noise is absorbed through the foam, what makes it through the foam bounces off the foil and is further absorbed in the foam. Frost King/Thermwell is the usual brand, carried at Lowes and Home Depot.
http://mikemercury.home.att.net/sound.htm
that sound dampening spray is similar to the stuff they use at thte dealership that they spray underneath the cars and wheel areas to reduce noise. There is a Dynamat brand to.

You say you don't understand how we go dumb, but have you ever been where i'm from?-=-] Livin it in tha bay's a lil different [-=-
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QUOTE (CaliJeff @ Sep 16, 2008 - 10:26 AM) *
>that sound dampening spray is similar to the stuff they use at thte dealership that they spray underneath the cars and wheel areas to reduce noise. There is a Dynamat brand to.

Yeah my dad was telling me about underliner spray. I'd like to give that a try as well.

-Matt
one of my celicas is corked dyno matted and foam insulated. Don't hear much road noise, but I still hear that 3sgte. As for my St I'm going to see what I can go with about $50 worth of foam and $50 worth of cork.... it should be silent
I've seen that underliner spray - it's available at most auto supply stores actually. It's like a black rubberizing spray that you coat the undercarriage of your car with. Dealerships charge like a few hundred dollars for it, but it's really like ten bucks for a can of it. Only thing is, you have to get your car up on a lift if you can, so you can de-grease it thoroughly before you apply the spray. The spray will also protect against rust (good for those who live where it snows and the roads are salted)

Great job with that carpet padding! I bought some foil-backed insulation stuff to put down under my carpet, but I won't have enough for the doors so I think I'll do what you did and make a little visit to Home Depot! I'm on 17s (and will be lowered soon) and I HATE the road noise!!!
any updates on the carpet area. I have my carpet off and this is tempting me so much!!!!!

This post has been edited by njccmd2002: Sep 19, 2008 - 10:14 AM

Learned a lot in 10 years...I hardly log in anymore, last loginToday Sept 6 2019, and I was forced just to clarify a post. LOLIf you PM me and I dont respond, dont fret or cry. Im alive, better post your questions in the thread below, maybe I log back in2grfe Swapped...Why I chose the 2GR, before you ask read here...A great civilization is not conquered from without until it has destroyed itself from within.@llamaraxing in Instagram is the best way to find me. I hardly log here anymore.
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QUOTE (njccmd2002 @ Sep 19, 2008 - 10:14 AM) *
>any updates on the carpet area. I have my carpet off and this is tempting me so much!!!!!

No, I'm just not going to do the carpet. I'm satisfied with how the other panels helped it, but I imagine the carpet would greatly help out as well.

-Matt
Gosh, there's just all kinds of responses I can think of to that comment, but I'll keep them to myself since this is a "family" site. laugh.gif (talk about tempting though!)

Anyway I say do it! Get thee some carpet padding and line that b*tch! I'm stopping at HD tonight on my way home and doing it this weekend.
I might do my carpeting on Sunday if I feel like ripping everything out.
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QUOTE (GotToyota @ Sep 19, 2008 - 2:29 PM) *
>I might do my carpeting on Sunday if I feel like ripping everything out.



well i might beat you to it.

Learned a lot in 10 years...I hardly log in anymore, last loginToday Sept 6 2019, and I was forced just to clarify a post. LOLIf you PM me and I dont respond, dont fret or cry. Im alive, better post your questions in the thread below, maybe I log back in2grfe Swapped...Why I chose the 2GR, before you ask read here...A great civilization is not conquered from without until it has destroyed itself from within.@llamaraxing in Instagram is the best way to find me. I hardly log here anymore.
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QUOTE (njccmd2002 @ Sep 19, 2008 - 3:05 PM) *
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QUOTE (GotToyota @ Sep 19, 2008 - 2:29 PM) *
>I might do my carpeting on Sunday if I feel like ripping everything out.



well i might beat you to it.

If you do, tell me how well it works.

-Matt
Did you put it under your carpet?
ill post pics later. My car is a mess right now.

Learned a lot in 10 years...I hardly log in anymore, last loginToday Sept 6 2019, and I was forced just to clarify a post. LOLIf you PM me and I dont respond, dont fret or cry. Im alive, better post your questions in the thread below, maybe I log back in2grfe Swapped...Why I chose the 2GR, before you ask read here...A great civilization is not conquered from without until it has destroyed itself from within.@llamaraxing in Instagram is the best way to find me. I hardly log here anymore.
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QUOTE (njccmd2002 @ Sep 20, 2008 - 2:19 PM) *
>ill post pics later. My car is a mess right now.

Cool, will do.
Man, my dad does remodeling on houses and we have a TON of this stuff sitting around! I've never even thought about putting any in my car to deaden the noise. After I got my exterior the way I want it, I was going to start on the interior and my first project there is to kill the noise. I think I'll give this a try tonight or tomorrow, after I take some stuff off of my parts car smile.gif

"Employ your time in improving yourself by other men's writings, so that you shall gain easily what others labored hard for." -Socrates. Even Socrates told us touse the search button!2006 Aston Martin V8 Vantage.1998 Celica GT-BEAMSSwapped.2022 4Runner TRD Off Road Prenium.2021 GMC Sierra AT4.
finished doing the doors today, havent tested yet (still drying/ getting rid of the glue smell) but i tried it on and it sounded like more bassy (could be just me tho) ill be doing where the rear speakers go tommorrow thanks to this thread biggrin.gif
Well I put the foil-backed sound dampening stuff that I had under the passenger side of the carpet this weekend, and that alone has made an improvement. I'm still going to do the driver's side and the door panels. I don't expect all the road noise to go away, being on those 17s is a PITA for the noise, but I think it's gonna make a huge improvement!
imagen how i feel. I got 19's
I would be careful with that carpet padding. Remember that when it rains, you will get small amounts of water into your door panels. Just like how when you spill whine on a carpet, you can sometimes smell it later, the same may apply to this carpet padding. I'd hate going through all this work and then ending up with a mildew smell come winter time.

I have a few friends who work in commercial ducting, I'm going to talk to them and see if I can get a couple of rolls of the same stuff that second link talked about.

-TC

Live your life for yourself. Don't hold back for anything or anyone.
Putting the padding on the interior side of the weather barrier should be fine -- after all, this is the same area where you find wood and glued-on vinyl, the design has to keep water away. The water entering the door panel should be flowing through the inner panels of the door and kept in check by the weather barrier.