Cabin noise

Dwight Frye

The Nissan 370Z fits the definition of a true GT (Gran Turismo), a high performance vehicle designed for high speed, long distance travel in comfort and style. I love my Z but find that the road noise really takes away from the comfort of mid to long cruises. You cannot even hold a conversation with a passenger at 70 MPH with the stereo off and windows up with raising your voice considerably and the excessive noise takes a lot away from the enjoyment of music regardless of how loud it is. Yes, I know it's a sports car, I've owned many. I like a good exhaust note and engine growl when pushing it, but when at speed and in 6th gear there is no excuse for the car to be as loud as it is. Nissan dropped the ball on the design. I'm also convinced that the majority of the noise is tire related, as soon as I hit a smooth patch of non-grooved asphalt on the freeway the sound drops at least 10 db.
Tire noise levels will be a major factor when it comes time to replace the OEM's.

sonic370

the 370 is a 2 seater it's gonna have some cabin noise...
but i don't like to use the word noise or even loud...

20% is not much of an improvement using materials...

i think on the sports package which i have it the bridgestones....

even the 50 grand vettes have some road noise....

the over weight stangs and camaros are quite.... but i'll pass on those..

RiCharlie

I think i may have used the term 20% at some point but that is just a very subjective guess.. I think it would be better to say that it was enough of a sound dampening to change the entire way I view the car. Sometimes even a slight improvement is a big deal..Sometimes the TV is too loud but just turning it down a bit makes a very big deal. As I said, 20% was just a guess..it could be 40%..only a measuring device could determine how much sound was dampened but it's well worth it IMO

LunaZ

I find my cabin to be very quiet!

Attached Images

cabin.jpg (61.1 KB, 1030 views)

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IDZRVIT

But wouldn't the sound of the melting snow in spring bother you?

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NitroZ

I agree. Nissan could have done a better job. It's ridiculous. I was able to quiet mine down quite a bit, probably by 50%. Although I don't like adding weight, I did use Dynamat in the cargo area under and among the spare tire. Then I sprayed the foam inside the areas I could not get to without taking everything apart. Next, I found a real piece of carpet that was very thick online and threw away the paper thing OEM carpet. This helped a lot. It even had a Z emblem right in the middle. Lastly, I pulled all the plastic molding that surrounds the back window and used sound deadening on all sides. I just cut the shapes to fit in-between the lines. After that, it's now very quite. I was surprised on how much noise was coming in from there but on my car, it was clearly and improvement.