Sound proofing experiment on the 370Z

mishuko · 09-09-2015, 02:04 PM

Quote:

Originally Posted by 370bluez

I did... I looked at at least 10 threads. Most don't have any measurements behind their claims. And from what I could tell most seem disappointed even after covering the entire trunk etc.

The proper way to apply material like dynamat isn't to cover every single space of metal but only a portion preferably in the middle of a panel i went a bit overboard since these cars don't even have wheel well liners?! WTF is up with that. Which explains the whole pebble issue.

Unless you're looking for mass damping through the sheer weight of the material. But that would require 2-3 layers of dynamat which would weigh 50lbs and is completely insane.

i agree with that statement about 2-3 full layers being insane but i did double up on the wheel well since there was no insulation as you have pointed out.

one of the things to remember is this is a pure-bred sports car. it's not a luxury sports coupe or anything close to a 'luxury' branded car so you won't be getting the same conveniences that come with the luxury badge.

i tried just the wheel wells and the spare wheel section, went back and did the entire trunk and noticed an improvement. also going from the stock tires to re-11's made a big improvement in road noise.

the road noise is fine minus hearining the pebble pings and long drives (more than a few hours). I did a few 4 hour drives before and after the install and it definitely helped relieve the road noise stress.

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