Fender Coating to reduce noise

Minicobra1 · 02-28-2009, 11:15 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, 11:18 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 · 03-01-2009, 12:10 AM

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, 01:00 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, 01:08 AM

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

Minicobra1 · 03-01-2009, 03:27 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, 03:44 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, 03:45 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, 11:25 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!

JoeyD · 03-01-2009, 12:25 PM

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.

SoCal 370Z · 03-01-2009, 12:49 PM

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?

frost · 03-01-2009, 12:52 PM

Too bad on the spray, that would have been nice and easy. Post up any further developments though!

shumby · 03-01-2009, 12:53 PM

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

SoCal 370Z · 03-01-2009, 12:59 PM

Quote:

Originally Posted by shumby

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.

frost · 03-01-2009, 01:02 PM

Quote:

Originally Posted by SoCal 370Z

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

03-01-2009, 01:08 AM	#5 (permalink)
k.alexander Base Member Join Date: Feb 2009 Location: Philadelphia, PA Age: 45 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, 03:45 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, 12:25 PM	#10 (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?

03-01-2009, 12:49 PM	#11 (permalink)
SoCal 370Z A True Z Fanatic Join Date: Feb 2009 Location: US of A Posts: 2,842 Drives: Answers Rep Power: 34	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? Last edited by SoCal 370Z; 03-01-2009 at 01:01 PM.

03-01-2009, 12:53 PM	#13 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 45 Posts: 6,288 Drives: your sister Rep Power: 237	you guys are funny g owners are removing the matting in their wheel whells to reduce weight. lol __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

02-28-2009, 11:18 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?

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