While waiting for 4th gear to arrive so that I can finish the transmission, I decided to make some progress on the interior. The first step was putting down some vinyl based sound-deadening. This is designed to absorb vibrations in the body panels, and reduce a lot of the 'hum'. The only downside is that it's fairly heavy, which is why it works. (Porsche owners are fanatics about keeping weight down.) I bought 20 square feet, about 12 lbs worth. I knew this wasn't enough to cover everything, but supposedly covering everything isn't really necessary. The larger expanses of flat sheet metal are the most likely to produce unpleasant noise, so the goal is to dampen most of the flat spots. First I sketched out all the interior panels (including all their raised strengthening ridges) and decide where to stick the stuff on.
Then did a whole lot of cutting and sticking..
The next layer is some foam, both to block out airborne noise, and to make a nice soft base for the carpets and such. I covered the back deck completely, since the engine is going to be the biggest source of noise.
I've still got a little more foam installation, but I started laying out the carpet, just to see how everything is going to fit. Installing it all is going to be tricky - the carpet pieces are flat, but there are a lot of curves to fit. But it's really going to look nice when done.
1 comments:
It smelled like a new car when you had the carpet in!
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