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Thread: Sound insulation: Old cars vs new

  1. #1
    Rest in Peace Conversion King ViPeR_NiPPleX's Avatar
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    Default Sound insulation: Old cars vs new

    Howdy,

    After a 10 hour trip in a celsior and then hopping into my ma61, ive noticed all extra road noise and cabin drone in my car. Has anyone played with putting in new sound absorbsion/deadener to make their older car sound a bit 'newer' ?

  2. #2
    Forum Sponsor Carport Converter TurboRA28's Avatar
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    Default Re: Sound insulation: Old cars vs new

    I use the foam carpet underlay in mine which cuts the noise down a lot.
    1977 RA28 Celica - 1MZ-FE Members Rides
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  3. #3
    Blasphemist Chief Engine Builder Bananaman's Avatar
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    Default Re: Sound insulation: Old cars vs new

    Quote Originally Posted by TurboRA28
    I use the foam carpet underlay in mine which cuts the noise down a lot.
    As opposed to the usual matting stuff? Expensive?
    KE20 CA18DET / RN25 12R / IS200 1G / NA MX5 B6

  4. #4
    Junior Member Domestic Engineer
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    Default Re: Sound insulation: Old cars vs new

    bitumise your wheel arches with a paint on stuff (A LOT of the noise comes from tyre noise).
    I used bitumised felt underlay under my carpet for the floor pan.
    there is something you can put on your firewall and under your bonnet (temp resistant sticky foam sheets).
    have a good look under your car, possibly rebitumise that with the paint on stuff
    use sound deadener sheets in your door skins, and on the underside of the roof (the ones i have played with are effing heavy and i would be afraid to put them anywhere actually, maybe a more lighter material can be found).

    if it is anything like my ra40, most of the shell doesn't have deadener on it.

    you can buy some stuff from bunnings that is used seal roof tiles to other objects and cover holes that is supposed to be a reasonable alternative to the proper stuff, i think it is called FlashTac or something like that.

    after you have done this take your car to a weigh bridge and see if your car now weighs the same as a celsior
    Last edited by barned01; 23-01-2007 at 01:38 PM.

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