Fender Coating to reduce noise
 

Ok, so I finally got tired of listening to all the rocks and pebbles echoing through my wheelwells. I used this stuff called Blue Magic rubber coating.
3 cans about $7 a piece. I sprayed the inside of the wheelwells with 2 coats and removed the plastic fender panels and sprayed them with 2 coats on both sides. I'm getting ready to install the panels and take her for a test drive, I'll post more on the results.

Let us know how it sounds once you take her for a spin. I asked about this a while back too.

http://www.the370z.com/nissan-370z-g...eel-wells.html

Panel Removal
 

Question, how much trouble was it to remove the panel? Can you give us a write up here on the forum on the process you used?

Thanks,

Was super easy, there are only 3 plastic panel clips holding it on, pulled the first 2 out by hand, the other one was a little tight so just used a flathead screwdriver to lift up the center portion of the clip and then it slipped out.

So, how is the end result? How does it sound???

I'm a little disappointed, it made very little difference. :mad: It's helping, but still needs some more treatment. The next step is to use the sound mat on the inside of the fender wells -inside the car and possibly some more coats of the rubber spray. I'll keep you all posted as I make progress and as to what makes the biggest difference.

Sorry to hear. I was hoping for a simple solution. Keep us posted as you progress through the alternatives. Thanks for being the pioneer.

You'll have more success with the sound matting - personally I wouldn't use any more rubber spray mate - spend the money on a nice treat for yourself instead (a CD maybe?).

Mass wins
 

I thought this might be the case with the spray on stuff. Is higher frequency noise (not the tire rolling drone) less pronounced? The sound mat will more than likely damp the structure better and reduce the noise.

Thanks for the info!

My MazdaSpeed6 had a material that resembled the carpet used on speaker boxes in the fender wells. When I first noticed I thought it wouldn't last, but it did. I've been wondering if something like that would be a good solution on the Z.

You will need to get some thickness to the material for it work. Line-X charges approximately $150 for this to be accomplished as they need to pep and take the wheels off. However, you will want a material that remains flexible so that if it ever does dislodge in a large piece it does not wreak havoc inside your fender well; products like Rhino have been reported to come of in large sheets. Dupli-Color Truck Bed Coating is another thought for those who want to use a truck bed lining material, but I would apply it via the spray gun and air compressor (watch their video). Second Skin Spectrum can also be used as an undercoating. I have not got around to coating our Z yet, but it is will done.

The issue is that the inside of the rear fender wells are like a drum; you need simply take your fingers and you can literally tap out a tune on the wells. There is a thin factory undercoating, but it is hard in nature, and adds to the noise. The ultimate will probably be a sandwich solution which will mean removing the rear interior pieces; no so sure I am willing to go to that extent. In a way, I am surprised that Nissan did not use their acoustic engineers to alleviate this issue, or to better address it; 2010 model?

Too bad on the spray, that would have been nice and easy. Post up any further developments though! http://www.camaro5.com/forums/images.../happy0180.gif

you guys are funny g owners are removing the matting in their wheel whells to reduce weight. lol

It's a matter of the Z being a daily driver versus a track car.