Fender Coating to reduce noise

Minicobra1 · 02-28-2009, 10:15 PM

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.

Pushing_Tin · 02-28-2009, 10:18 PM

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

Anybody considered Line-X or Arma in the wheel wells?

mspeasl · 02-28-2009, 11:10 PM

Quote:

Originally Posted by Minicobra1

I 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.

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,

Minicobra1 · 03-01-2009, 12:00 AM

Quote:

Originally Posted by mspeasl

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.

k.alexander · 03-01-2009, 12:08 AM

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

Minicobra1 · 03-01-2009, 02:27 AM

Quote:

Originally Posted by k.alexander

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

I'm a little disappointed, it made very little difference.

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.

par4bmw · 03-01-2009, 02:44 AM

Quote:

Originally Posted by Minicobra1

I'm a little disappointed, it made very little difference.

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.

chubbs · 03-01-2009, 02:45 AM

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?).

Nikon FM · 03-01-2009, 10:25 AM

Quote:

Originally Posted by Minicobra1

I'm a little disappointed, it made very little difference.

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.

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!

nicknick · 02-13-2011, 08:12 PM

Quote:

Originally Posted by Minicobra1

I'm a little disappointed, it made very little difference.

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.

just curious, will sound mat hold onto water/moisture and will it cause rust on metal parts due to holding onto moisture?

JoeyD · 03-01-2009, 11:25 AM

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.

Minicobra1 · 03-01-2009, 04:38 PM

Quote:

Originally Posted by JoeyD

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.

Yeah, my Mini Cooper S has the same carpet like material in the fenderwells, I thought it was kind of cheap at firlst, but it does a good job, can't here any rocks hitting inside at all. Maybe some outdoor carpet at Home Depot will do the trick

LaSeeno · 03-02-2009, 02:01 PM

I had my entire rear dynomatted and it helped a "little". You can still hear quite a bit of pebble action.

wellarmed · 03-24-2009, 09:11 AM

The inner rear wheel well already has a fairly thick soft rubberised coating. The plastic panel that is removable is bare hard plastic and in my opinion the culprit when it comes to the tink tink sound of rocks being pitched up against it. A real thick coat of the spray stuff on the outside of that plastic panel will help for that specific noise.
The road noise from the drone of the tires on certain pavement is more pronounced because of the steel drum effect of the rear hatch area.
In my opinion the only thing that is going to quiet that down is a triple layering of the B-Quiet sound deadning material covering every square inch of bare metal on the inside behind the seats.
Just pull out all the stuff back there and start laying down the sticky rubber. I'm thinking 100 sq ft will put enough sound capturing material back there to really do the job.

mjd77 · 02-18-2010, 02:36 PM

Quote:

Originally Posted by JoeyD

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.

My RX-8 has this too and I wish Nissan would do something similar for the Z.

03-01-2009, 12:08 AM	#5 (permalink)
k.alexander Base Member Join Date: Feb 2009 Location: Philadelphia, PA Age: 46 Posts: 240 Drives: 09 Nissan 370Z PG M6 Rep Power: 715	So, how is the end result? How does it sound??? __________________ -Are you coming to bed? -I can't. This is important. -What? -Someone is WRONG on the internet.

03-01-2009, 02:45 AM	#8 (permalink)
chubbs A True Z Fanatic Join Date: Jan 2009 Location: Zeeland Posts: 1,046 Drives: 2016 370z Auto-Grey Rep Power: 7587	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?). __________________ . '03 Grey >>> '06 Black >>>'10 Silver >>> '16 Grey ^

03-01-2009, 11:25 AM	#11 (permalink)
JoeyD Enthusiast Member Join Date: Jan 2009 Location: Raeford, NC Posts: 305 Drives: 09 NISMO 370Z Rep Power: 187	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. __________________ When was the last time you did 230MPH in something with 4 seats?

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02-28-2009, 10:18 PM	#2 (permalink)
Pushing_Tin A True Z Fanatic Join Date: Nov 2008 Location: Eugene, OR Posts: 2,875 Drives: E63 AMG Rep Power: 228	Let us know how it sounds once you take her for a spin. I asked about this a while back too. Anybody considered Line-X or Arma in the wheel wells?

03-02-2009, 02:01 PM	#13 (permalink)
LaSeeno Base Member Join Date: Feb 2009 Location: Mars Posts: 129 Drives: NA Rep Power: 17	I had my entire rear dynomatted and it helped a "little". You can still hear quite a bit of pebble action.

03-24-2009, 09:11 AM	#14 (permalink)
wellarmed Base Member Join Date: Feb 2009 Location: Tucson, Az. Posts: 42 Drives: 09 370Z Rep Power: 17	The inner rear wheel well already has a fairly thick soft rubberised coating. The plastic panel that is removable is bare hard plastic and in my opinion the culprit when it comes to the tink tink sound of rocks being pitched up against it. A real thick coat of the spray stuff on the outside of that plastic panel will help for that specific noise. The road noise from the drone of the tires on certain pavement is more pronounced because of the steel drum effect of the rear hatch area. In my opinion the only thing that is going to quiet that down is a triple layering of the B-Quiet sound deadning material covering every square inch of bare metal on the inside behind the seats. Just pull out all the stuff back there and start laying down the sticky rubber. I'm thinking 100 sq ft will put enough sound capturing material back there to really do the job.