Finished up the Dynamat project, thoughts?, Includes semi-big pics Options

[GotToyota]

I finished up my small Dynamat project today after school. I did my doors a few weeks ago, as well as parts of my hatch, but went ahead and got some more to finish it up.



The doors were already finished, but I went back and double-layered some parts that really needed it.



Same goes for the other door.



And what I'm most proud of, that did the most, in my opinion, was the door panels. Both were the same so I didn't bother to take pics of both.

I didn't catch a pic of the hatch, I forgot I needed to take a picture as it was already re-assembled. But I'd like thoughts on how I placed the Dynamat and such. It sounds fantastic and almost all road noise for the most part is gone and is much quieter on the highway.

-Matt

This post has been edited by GotToyota: Oct 9, 2007 - 7:07 PM

[soven]

Dynamat does two things.

1) Mass damping from its weight. Basically weigh anything down and it will lower its resonance frequency and also increase the energy required to excite it.

2) Blocking from its aluminium foil. This is straight out stopping the sound from going through. (so cover as much surface as possible when you want to achieve this)

so, if you want to use dynamat to its full potential and you are short on cash. Put dynamat in the middle of flat big surfaces such as the outer door which you did not dynamat. The inner metal which you have done is a convoluted surface and mass damping isnt really needed. So you basically are only using it as a blocker and since you did it in pieces, it is not really performing all that well.

The dynamat on the door cards is alright but I can do the same with rubber sheets etc to stop it from resonating for a cheaper but messier option.

I would also suggest covering the access hole. You will be surprised at the difference. use thin mdf. Let me know if you need any other help