Sound proofing

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morningglory
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Sound proofing

Post by morningglory » Sat Mar 05, 2016 10:50 am

Anyone any experience of trying a bit of DIY sound proofing?

I'm thinking about it as a summer project. I have to think many months in advance before spending such £££. I don't have an Ali G type stereo, I just want a bit more peace on motorways that haven't been resurfaced since Disraeli.

There's this thread http://www.bxclub.co.uk/forum/viewtopic ... ndproofing

and this one http://www.bxclub.co.uk/forum/viewtopic ... ndproofing

Ta

Joe
1994 TZD Estate in 'Canal-Boat Green'

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morningglory
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Re: Sound proofing

Post by morningglory » Fri May 27, 2016 9:45 pm

If anyone is reading this, its worked a treat.

Front footwells and bulkhead had absolutely loads of stuff on so no need to add anything. The rest of the cafr has nothing.
Silent coat deadener stuff used for inner and outer door skins, rear footwells, boot floor and sides and tailgate (about a third of the area covered).
6mm self adhesive closed cell foam all over everything for trim and carpets put back
Heat reflective 20mm closed cell foam in between bonnet and existing sound proofing felt blanket thing

By far the best value is the bonnet stuff. Kills a lot of engine ticking and clicking and everything dulled to a rumble. Whole car is much better for road noise. I am quite sensitive to noise but even my girlfriend (who isn't bothered by noise and could sleep through an army of screaming toddlers destroying the house) is impressed by the difference.

£150 though! Only worth it if you are very particular I reckon.
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rutter123
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Re: Sound proofing

Post by rutter123 » Fri May 27, 2016 10:40 pm

Money well spent this is something ive been meaning to do for many years, where did you buy your sound proofing? And i expect your insulation will be improved as well.
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morningglory
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Re: Sound proofing

Post by morningglory » Fri May 27, 2016 10:47 pm

eBay for the 'Silent Coat' stuff and www.carinsulation.co.uk for the foam and bonnet stuff (they also have an eBay shop).

I spent a looong time researching this as there is so much to choose from and so much stuff from car-modders and boy racers on the internet. The best resource I found was http://www.talkstuff.net/ipb/index.php/ ... brication/ - really helpful forum.

The only problem now is that all I can hear is the bits of plastic trim rattling and creaking inside the car!
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frog
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Re: Sound proofing

Post by frog » Sun Jun 12, 2016 11:03 am

Thanks for this, I've been meaning to look into it for my Valver. I think that in the Australian heat my sound deadening has separated from the firewall. The thick factory foam seems to be hanging down in the drivers footwell and - a fair bit of noise is getting through from the footwells. Looks to be hard to remedy with the dash in!

Did you put the 6mm foam on the doors? How about the roof?
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morningglory
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Re: Sound proofing

Post by morningglory » Mon Jun 13, 2016 1:41 pm

If you take the front footwell carpet up, you should be able to get good access right up and under the dash a bit. Obviously better with the dash out. Footwells seem to have thick deadener, then really thick foam, felt and a thick rubber/plastic sheet, then more felt. I was impressed by how much was in there but that's the most important place.

On the doors, the 6mm foam is between the door card and the inner skin. Its supposed to act as a total barrier to anything from the outer skin so make sure any holes are covered.

Not done the roof though. It is a big panel that will resonate a lot but it would cost loads in materials and most noise comes from the road or engine.
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Dragon Man
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Re: Sound proofing

Post by Dragon Man » Mon Jun 13, 2016 3:11 pm

i just went down my local scrap yard and got loads out of scrap cars. i think i have the most silent fiat panda 4x4 ever!
- JohnDragonMan

Drives: a classic Panda 4x4 called Project Fallout
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Fix it Again Tomorrow. no special tools needed, always able to fix it! :)