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Am I nuts? Sound dampening convertible

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  • Am I nuts? Sound dampening convertible

    So, I have some work to do in my doors this winter (window motors), and I also planned on ripping out the seats and console to replace the carpet as it's got a couple of small burn marks and is worn through where the driver's heel would sit - obviously, the previous owners didn't use mats.

    Anyway, I think I am going to yank the seats and console and try to give the carpet a really good cleaning before I spend $200-$300 on aftermarket carpeting. Really, it looks darn decent other than the couple burn marks, and the wear spot would be covered with some good floor mats.

    Where am I going with this background?

    While I have the interior pulled apart anyway, I was thinking of throwing down some CLD tiles (Dynamat-type) to quiet down the car's "tinny-ness", and then thought I'd put down a layer of closed cell foam and some mlv to further quiet it up. All together, we're looking at something like $200 in sound deadening. I could also go lighter on that, and just concentrate on the trouble areas - for instance, my 'vert has absolutely no insulation between the rear side interior panels and the steel for the wheelwell. I could concentrate on the doors and areas like that, let's assume it'd cost me half as much. Again - I'd want to do this the "right" way, and not just dynamat the entire interior. I'd use CLD as it was intended, sparingly, on panels that resonate.

    I mentioned this to a fellow grease monkey, and he told me I am crazy. I see where he's coming from - the car is a 'vert, and it won't be very quiet no matter what. I am envisioning, though, making the car sound more upscale and "solid" with the sound dampening. Doors won't sound as hollow when closing, bumps shouldn't clang and rattle the interior nearly as much.

    What say you all? Any experience here?
    2000 SS Convertible #1414 - Light Pewter 6 Speed

  • #2
    spend the money on a good set of subframe connectors. They make a big difference on a vert.
    When in doubt, Whip it out !

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    • #3
      Use foam or felt material as a gasket between your dash/interior components to reduce rattles. Same for the doors. Try to insulate the lock/handle rods and mechanisms to reduce their rattling and make sure the door is aligned well and isn't sagging so that the striker engages smoothly. Putting some CLD in the doors couldn't hurt, but fixing the rattles will probably help more for the desired effect when closing.

      Otherwise, honestly, CLD tiles probably won't do much for you. Most of your noise is going to come in through your convertible top and the window seals. They'll help a little I'm sure, but I'd guess that any gains won't be noticeable because of all the noise coming in through the top. Now, if you were putting in an audio system and wanted to reduce resonation from the bass, that is a different story.
      Last edited by birdie2000; December 5th, 2012, 03:50 PM.

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      • #4
        Originally posted by farmington View Post
        spend the money on a good set of subframe connectors. They make a big difference on a vert.
        I will be installing UMI 3 point bolt-ins before the spring. Hopefully those help a lot!

        Originally posted by birdie2000 View Post
        Use foam or felt material as a gasket between your dash/interior components to reduce rattles. Same for the doors. Try to insulate the lock/handle rods and mechanisms to reduce their rattling and make sure the door is aligned well and isn't sagging so that the striker engages smoothly. Putting some CLD in the doors couldn't hurt, but fixing the rattles will probably help more for the desired effect when closing.

        Otherwise, honestly, CLD tiles probably won't do much for you. Most of your noise is going to come in through your convertible top and the window seals. They'll help a little I'm sure, but I'd guess that any gains won't be noticeable because of all the noise coming in through the top. Now, if you were putting in an audio system and wanted to reduce resonation from the bass, that is a different story.
        Thanks for the info - I can source the foam locally, so maybe that'd be a good bet in strategic locations behind/between interior panels. It's not terriblly expensive by any means. I do have a halfway decent system in it, but really, because it's a convertible it won't ever sound as good as what it's capable of. I am happy enough with that.

        I appreciate the input - if anyone else has some recommendations or experiences to share, I'd love to hear them. I am leaning towards using mostly foam, maybe some CLD, in strategic places and see how that does.
        2000 SS Convertible #1414 - Light Pewter 6 Speed

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        • #5
          Honestly, I don't even worry about it because I drive mine top down about 98% of the time.
          When in doubt, Whip it out !

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