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Soundproofing the vitara
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Author:  jimnynutter [ Thu Dec 12, 2013 4:50 pm ]
Post subject:  Soundproofing the vitara
Hey guys just after opinions on what's the best thing to use to sound proof the interior of my vitara

I currently have the carpet removed and I'm going to put it back in this weekend, and I have dynamat to lay down o the floor pan as well.
I was thinking of adding some of either of this on top of the dynamat for extra sound proofing
And eventually want to dynamat under the roof lining, and behind the door trims.

I also remember reading somewhere on here that some body put a layer under their roof lining and it made a difference.
http://www.clarkrubber.com.au/convolute ... quare.html

http://www.actfoam.com.au/foam-and-bedd ... x1880x50mm

What's your take guys?
Author:  Che [ Thu Dec 12, 2013 5:21 pm ]
Post subject:  Re: Soundproofing the vitara
Don't bother with that stuff. Studio's don't use that foam to 'soundproof' anything, it's used to stop echoes bouncing from surface to surface. Different thicknesses of the stuff is used to target different frequencies helping make a room sound sonically 'neutral' for recording. Guys that use if for home theatres usually have no idea what it's for. That stuff linked is thin too - it will absorb a wee bit of sound but no more than a layer of carpet already would. But you don't usually see it in cars for a reason.

If you want to stop noise density and mass is your friend. Rubber matting, sheets of rolled tar, or heavy carpet underlay would all be better options. That dynamat stuff would probably be the best option of all.
Author:  shipwrecked101 [ Thu Dec 12, 2013 10:49 pm ]
Post subject:  Re: Soundproofing the vitara
What Che said, I use that foam (well something similar) in my recording studio to stop sound reflections from my monitors not soundproofing. For soundproofing my walls have 90mm of rockwool, with 18mm particle board over top, followed by another 75mm air space and two layers of gyprock...

Obviously this wouldn't be possible in a vehicle.
Author:  royce [ Fri Dec 13, 2013 11:02 am ]
Post subject:  Re: Soundproofing the vitara
do the roof and sides first, they drum a heap more than the floor so make a lot more noise
Author:  jimnynutter [ Fri Dec 13, 2013 12:18 pm ]
Post subject:  Re: Soundproofing the vitara
Wow ok, glad I didn't fork out anything for that foam stuff then.

Just use dynamat for the whole interior then? I looked at some rubber sheeting today while I'm up in wollongong for a psychiatrist appointment but the trade off was weight. for the thick stuff being about 4.5mm thick would that be overkill?
Was 48$ for 900x1000x45mm

But I was thinking, if I dynamat the floor(it's all ready to go right now the carpets out and everything so I may as well)
Author:  Che [ Fri Dec 13, 2013 6:02 pm ]
Post subject:  Re: Soundproofing the vitara
It depends how much you want to spend. As Royce suggest, definitely line the inside of the doors and the rear inners above the wheel arches - that'll be the most effective placement to kill noise. If you truly want to dampen noise the roof will need to be done too, but whether you want to pull the lining off is another matter, and I have no idea how well the Dynamat stuff will adhere to a roof interior (especially if a 45ยบ day rolls around). Thickest stuff on the floors and firewall to dampen mechanical noise and vibrational transfer from chassis to body.

Just remember there's only so much you can do - thin-ish panels and 20yo aerodynamic properties means there's only so much noise you can delete from a Vit.
Author:  Bucketload [ Sat Dec 14, 2013 12:16 am ]
Post subject:  Re: Soundproofing the vitara
I did the floorpan only of my soft top with an ebay knockoff of dynamat (a bit thinner) - can honestly say I don't know if it made any difference at all...
Author:  christover1 [ Sat Dec 14, 2013 4:04 am ]
Post subject:  Re: Soundproofing the vitara
I just turn the hearing aids off, then my Vit sounds like a limo.
Avoid any insulation prone to sucking in moisture, it gains weight and encourages rust.
Author:  neofitou [ Sun Dec 15, 2013 4:02 pm ]
Post subject:  Re: Soundproofing the vitara
Dynamat will stick to the roof very well once you get the lining off, it's what it is made for and its hella sticky. The extreme version is even more up to the task (apparently, I've not used it).
You would be amazed at how solid the car feels after coating the whole inside of a car with it.

Bucketload's problem is he didn't stick it to the roof! :P

Seriously though, you will probably get more benefit from doing the doors in a soft top sierra than the floor.
As it stops the rattle and drumming they would probably feel like a feel like a real cars door instead of a tin can.
Author:  christover1 [ Sun Dec 15, 2013 4:12 pm ]
Post subject:  Re: Soundproofing the vitara
Could be useful as a liner for the camper
Author:  Matthew [ Sun Dec 15, 2013 5:30 pm ]
Post subject:  Re: Soundproofing the vitara
http://www.sounddeadenershowdown.com/

This site has a lot of useful info, unfortunately it has changed over the years. It used to be focused less on the selling.
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