Has anyone ever tried to improve the BX' poor noise insulation? It's not a problem up to maybe 70km/h, but from 100km/h upwards it's not really pleasant to listen to music anymore. I looked at different options but they seem either ineffective or expensive or both.
I looked at these options:
- Alubutyl, very expensive, good sound proofing for the doors, to get better resonance from speakers. Not necessarily a lot of sound proofing from outside noise.
- Foam panels. A bit cheaper but only effective when using a lot, so it's still pricey.
- Bitumen panels. Very ineffective.
Asking in a hifi-forum someone also told me that there might be a range of things that are different in a newer car that make it less noisy compared to a BX, some of which I could add myself, if I new which materials to use, but most of which are impossible to improve:
So, has anyone improved the sound proofing on a BX before? What materials to use? How much better can it get? Is there any potential?Underbody encased
foam panels under carpets (can do this?)
Rubber suspended body on chassis frame
Double or tripple door seals (can do this?)
Window glass with coating
Wheel cages with plastik casing
Seals inside body seams to reduce stream noise
By the way I'm impressed how silent the inner of the car is. No rattling, as in many other cars of that age. It's pretty rock solid