Cheap Sound Dampening
Thread Starter
Joined: Apr 2004
Posts: 1,458
Likes: 14
From: Vinton, Louisiana
Cheap Sound Dampening Bought this stuff 6 months ago and finally took time to install it Friday night. I spent $50 shipped for all of it and was a little concerned I'd run out. I pulled the the panels and rear hatch carpet. The entire hatch area is covered, along with the sail panels. Doors were kind of limited on due to not much surface area to install it and forgot to get pictures of what all I did get on them. Also did the roof or what little roof a car with t-tops has, lol. I was a little worried on quality, although it feels and weights identical to regular Dynamat. I'd guess around a 40% reduction in noise inside the cabin now. Now all I hear is road noise coming from the floorboard. I'd like to pull the seats and carpet to get it done, but not sure if it's worth the time and effort to do. Anyone comment on doing floorboard?
and what's left over. Wonder what else I could the remainder for?
and what's left over. Wonder what else I could the remainder for?
Thread Starter
Joined: Apr 2004
Posts: 1,458
Likes: 14
From: Vinton, Louisiana
The music sounds more "full", if that makes sense. Definitely hear the exhaust note still, but I'm also running headers and no cats. It cut the hatch area alot, but still hear stuff under the floorboard by my feet.
Closing the doors sounds more solid now as well considering how little stuff I was able to put on the doors.
Closing the doors sounds more solid now as well considering how little stuff I was able to put on the doors.
Teching In
Joined: Sep 2014
Posts: 3
Likes: 0
The music sounds more "full", if that makes sense. Definitely hear the exhaust note still, but I'm also running headers and no cats. It cut the hatch area alot, but still hear stuff under the floorboard by my feet.
Closing the doors sounds more solid now as well considering how little stuff I was able to put on the doors.
Closing the doors sounds more solid now as well considering how little stuff I was able to put on the doors.
As you noticed, the doors really benefit a lot from the additional density since there isn't much material there to begin with. Since the trunk has thicker metal and has some bends in it, it doesn't really resonate like the doors would. (You have a subwoofer though, so that aids some in that)
I'd make sure to have some applied behind the subwoofer as well.
Last edited by Codi_p; Nov 13, 2016 at 05:32 PM.
Thread Starter
Joined: Apr 2004
Posts: 1,458
Likes: 14
From: Vinton, Louisiana
Usually the type of sound deadening you applied doesn't do much for reducing noise, it's more for deadening out panel resonance. It's typically now recommended (for sound deadening) that non-asphalt based, butyl sound deadener tiles are used (versus 100% coverage like you did) at about 25% coverage, and using a mass loaded vinyl with a CLD decoupler to maximize noise reduction.
You have the material, so, if you have the time - why not? I will tell you that riding in themealonwheels car, before and after he sound-deadened it, was a night and day difference. So much so that I will be doing my entire car while I have the interior out.
Teching In
Joined: Sep 2014
Posts: 3
Likes: 0
All I can say is what I experienced personally. It's alot quieter in the hatch area and even overall experience in the car. The doors also sound more solid when shutting them. I daily drive this car as well, so anything other the normal kind of stands out. I didn't have high expectations due to the price, but definitely exceeded them and was worth the few hours to install anyways.
There's quite a bit of good info here:
www.sounddeadenershowdown.com
just in case you wanted to take it one step further. Usually, just adding in the stick on asphalt stuff just adds weight, and it doesn't do as good of a job as the butyl stuff at controlling panel resonance.
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Thread Starter
Joined: Apr 2004
Posts: 1,458
Likes: 14
From: Vinton, Louisiana
Now you have me wanting to do the floorboards. Seats and console should come out pretty easily, the carpet is only part that has me concerned.
From the looks and feel of the backing, it feels like it's the butyl type.
From the looks and feel of the backing, it feels like it's the butyl type.
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