Cabin noise

brucelidat · 05-19-2012, 05:58 PM

Plan to go back for brake lines/fluid drain.

MacLean · 05-20-2012, 12:26 PM

Quote:

Originally Posted by brucelidat

He actually undercharged me by a bit. I picked up some post MAFs that I brought along to install as well since I was having all that other stuff done. He was going to charge me $20 for that, but forgot it at the end. So the final tally

Swift springs - $290
spring install - $130
Dynamat install - $140
post MAF install - $0
total - $560

I think it was a pretty good deal overall.

That is a hell of an effen deal.

RiCharlie · 05-20-2012, 09:43 PM

Quote:

Originally Posted by brucelidat

He actually undercharged me by a bit. I picked up some post MAFs that I brought along to install as well since I was having all that other stuff done. He was going to charge me $20 for that, but forgot it at the end. So the final tally

Swift springs - $290
spring install - $130
Dynamat install - $140
post MAF install - $0
total - $560

I think it was a pretty good deal overall.

Well as I said before, for this price I could have driven to California, had a vacation and returned for less than what I paid. It cost me $1200 including materials... This is just so far out of line with what I paid, its incredible! Good for you!

Bonzo · 05-21-2012, 08:46 AM

Quote:

Originally Posted by RiCharlie

Bonzo was right!

WOW!!!!!!!

Even us morons get lucky every once in a while.

brucelidat · 05-21-2012, 11:47 AM

Here are some pics I took during the install.

[IMG]

[/IMG]

Tribalpinoy91 · 05-22-2012, 07:17 PM

Do the two big plastic triangular pieces in the trunk just pop off I'am assuming? Then the carpet just pulls off?

P.S. My Z hasn't arrived yet..

brucelidat · 05-22-2012, 07:18 PM

I don't know. I wasn't watching the entire time. I just stepped in to take some progress shots to post here.

scottIN · 05-22-2012, 07:32 PM

Carpet first, then interior pieces, then foam, then spare.

vermithrax · 05-23-2012, 11:40 AM

Was wondering if mounting a product like Dynamat or Luxury liner pro to the top or underside of the plastic corrugated cover in the hatch would help? Sort of sandwich it between the carpet and the plastic cover maybe?

You would think that that would pretty much seal off the noise coming from below. Has anyone done this? iF so, what were your results and how much did you need?

scottIN · 05-23-2012, 12:07 PM

Quote:

Originally Posted by vermithrax

Was wondering if mounting a product like Dynamat or Luxury liner pro to the top or underside of the plastic corrugated cover in the hatch would help? Sort of sandwich it between the carpet and the plastic cover maybe?

You would think that that would pretty much seal off the noise coming from below. Has anyone done this? iF so, what were your results and how much did you need?

It's somewhere in this thread about doing that.
I've got the plastic, base carpet and then the truck carpet so I don't know how much more I could pack in there.

RiCharlie · 05-23-2012, 02:37 PM

Quote:

Originally Posted by Bonzo

WOW!!!!!!!

Even us morons get lucky every once in a while.

I was referring to a different Bonzo...

Bonzo · 05-23-2012, 03:59 PM

Quote:

Originally Posted by RiCharlie

I was referring to a different Bonzo...

Mwagner07 · 05-29-2012, 06:33 PM

Hello all. Just finished some 12 hours worth of sound damping (the whole rear hatch)
Purchased product from Canada (B-Quite Ultimate). I did a lot of research and this product comes so close to dynamite I had to try it. I used 43 Yards for the whole trunk so purchase the 50 Yard roll. This product is a butyl base and smelled slightly like a new tire. I have had loads of hot days and have not yet once notice any odor from the product. I did notice great noise reduction but read on. I also used the V-comp matting (2 Sheets) placed it on the entire lower back area under the spare tire, but not after the bracing and also cut a duplicate layer that covers the WHOLE rear truck (size of the rear factory trunk mat).
Also I added some B-Quite to the inner left tire wheel well . Started from the lower front of the well to 12 o’clock top. Then I covered that with Duplicolor professional under coating / sound deadener (from Advanced Auto Parts $7.49 can) used 2 1/2 cans.
Interior Sound from the Bose is simply amazing now. The bass hits clean and tight - I LOVE IT!!!
At around 35MPH to 60MPH I notice the rear tire noise still comes through but much less.
Now at 60-65MPH it is virtually gone. and I mean gone. My guess is due to the factory set camber.
Once you hit the 60mph mark the tire camber becomes more neutral and thus the noise is gone..
Any thoughts on that ???

I will have the camber brought to neutral just to test this theory.
(may require some adjustable aftermarket parts)
I understand that the Z is a sports car and will have less refined cabin sound. The point isn’t for people who enjoy that but to help those who are daily drivers and would like a quieter cabin..
I only have a 10 min ride to work, but during lunch many a times just go out and hit the bends and it is much more enjoyable now.
Thanks to all whom keep info flowing into the Z community….

Mwagner07 · 05-29-2012, 08:40 PM

Just wanted to do a quick update.
Cold Tire pressure was sent to 41psi rear 40 psi front. at 90 degree outdoor temp today.

I couldn't figure out why after doing all my mods was the inside cabin gaining noise.. Well it was because when it was 70 out when I did the install everything sounded great.. So I checked pressure at the local gas station (FORGOT MY GAUGE) and added some air. Well then the heat came on this week and the noise went up. Then it occurred to me my tire pressures.

Any how I took my digital tire gauge (accurate to 2 psi) and when out to check my tires.. at 65 degrees outside temp (cold tire) and the rears where 38PSI along with the fronts. I brought them back to 35 Psi cold and the cabin noise from the rear went down even more after a test ride. I could not believe how 6 psi in the rear would add so much more road hum.

ALSO from the sound deadening I did the rain swish noise was greatly reduce.
PS you will lose quite a bit of your exhaust note. (Time to get that back with and aftermarket exhaust)

- I will also have my camber reduced to maximums or as close to neutral as possible as a further test later this week.

Testing makes perfect!

MacLean · 05-29-2012, 09:09 PM

Mwagner07 glad you finished everything up on B-Quite Ultimate install. I would agree that having the wrong psi (too much) would cause a lot of road noise.

05-19-2012, 05:58 PM	#586 (permalink)
brucelidat A True Z Fanatic Join Date: Jun 2011 Location: temple city, ca Posts: 2,432 Drives: 2011 370z 7AT GM Sp Rep Power: 31	Plan to go back for brake lines/fluid drain. __________________ Works Emotion CR Ultimate - FI CBE w/ 18" resonators - Ecutek - eibach sways - Quaife - FI LTH w/race cats - kw v3 - spl - Topgunz SC - 488whp 398trq

05-21-2012, 11:47 AM	#590 (permalink)
brucelidat A True Z Fanatic Join Date: Jun 2011 Location: temple city, ca Posts: 2,432 Drives: 2011 370z 7AT GM Sp Rep Power: 31	Here are some pics I took during the install. [IMG][/IMG] __________________ Works Emotion CR Ultimate - FI CBE w/ 18" resonators - Ecutek - eibach sways - Quaife - FI LTH w/race cats - kw v3 - spl - Topgunz SC - 488whp 398trq

05-22-2012, 07:18 PM	#592 (permalink)
brucelidat A True Z Fanatic Join Date: Jun 2011 Location: temple city, ca Posts: 2,432 Drives: 2011 370z 7AT GM Sp Rep Power: 31	I don't know. I wasn't watching the entire time. I just stepped in to take some progress shots to post here. __________________ Works Emotion CR Ultimate - FI CBE w/ 18" resonators - Ecutek - eibach sways - Quaife - FI LTH w/race cats - kw v3 - spl - Topgunz SC - 488whp 398trq

05-29-2012, 06:33 PM	#598 (permalink)
Mwagner07 Base Member Join Date: May 2011 Location: NY Posts: 34 Drives: 2017 370z Red Nismo Rep Power: 16	Cabin Noise - Now Reduced Hello all. Just finished some 12 hours worth of sound damping (the whole rear hatch) Purchased product from Canada (B-Quite Ultimate). I did a lot of research and this product comes so close to dynamite I had to try it. I used 43 Yards for the whole trunk so purchase the 50 Yard roll. This product is a butyl base and smelled slightly like a new tire. I have had loads of hot days and have not yet once notice any odor from the product. I did notice great noise reduction but read on. I also used the V-comp matting (2 Sheets) placed it on the entire lower back area under the spare tire, but not after the bracing and also cut a duplicate layer that covers the WHOLE rear truck (size of the rear factory trunk mat). Also I added some B-Quite to the inner left tire wheel well . Started from the lower front of the well to 12 o’clock top. Then I covered that with Duplicolor professional under coating / sound deadener (from Advanced Auto Parts $7.49 can) used 2 1/2 cans. Interior Sound from the Bose is simply amazing now. The bass hits clean and tight - I LOVE IT!!! At around 35MPH to 60MPH I notice the rear tire noise still comes through but much less. Now at 60-65MPH it is virtually gone. and I mean gone. My guess is due to the factory set camber. Once you hit the 60mph mark the tire camber becomes more neutral and thus the noise is gone.. Any thoughts on that ??? I will have the camber brought to neutral just to test this theory. (may require some adjustable aftermarket parts) I understand that the Z is a sports car and will have less refined cabin sound. The point isn’t for people who enjoy that but to help those who are daily drivers and would like a quieter cabin.. I only have a 10 min ride to work, but during lunch many a times just go out and hit the bends and it is much more enjoyable now. Thanks to all whom keep info flowing into the Z community….

05-29-2012, 08:40 PM	#599 (permalink)
Mwagner07 Base Member Join Date: May 2011 Location: NY Posts: 34 Drives: 2017 370z Red Nismo Rep Power: 16	Tire Pressure and Sound Just wanted to do a quick update. Cold Tire pressure was sent to 41psi rear 40 psi front. at 90 degree outdoor temp today. I couldn't figure out why after doing all my mods was the inside cabin gaining noise.. Well it was because when it was 70 out when I did the install everything sounded great.. So I checked pressure at the local gas station (FORGOT MY GAUGE) and added some air. Well then the heat came on this week and the noise went up. Then it occurred to me my tire pressures. Any how I took my digital tire gauge (accurate to 2 psi) and when out to check my tires.. at 65 degrees outside temp (cold tire) and the rears where 38PSI along with the fronts. I brought them back to 35 Psi cold and the cabin noise from the rear went down even more after a test ride. I could not believe how 6 psi in the rear would add so much more road hum. ALSO from the sound deadening I did the rain swish noise was greatly reduce. PS you will lose quite a bit of your exhaust note. (Time to get that back with and aftermarket exhaust) - I will also have my camber reduced to maximums or as close to neutral as possible as a further test later this week. Testing makes perfect!

05-22-2012, 07:17 PM	#591 (permalink)
Tribalpinoy91 Track Member Join Date: May 2012 Location: Las Vegas Posts: 607 Drives: 370z PW Rep Power: 14	Do the two big plastic triangular pieces in the trunk just pop off I'am assuming? Then the carpet just pulls off? P.S. My Z hasn't arrived yet..

05-22-2012, 07:32 PM	#593 (permalink)
scottIN Track Member Join Date: Aug 2011 Location: New Castle, Indiana Posts: 764 Drives: '12 370Z Rep Power: 55	Carpet first, then interior pieces, then foam, then spare.

05-23-2012, 11:40 AM	#594 (permalink)
vermithrax Base Member Join Date: Apr 2012 Location: Houston Posts: 128 Drives: 11 370z/sport silver Rep Power: 13	Was wondering if mounting a product like Dynamat or Luxury liner pro to the top or underside of the plastic corrugated cover in the hatch would help? Sort of sandwich it between the carpet and the plastic cover maybe? You would think that that would pretty much seal off the noise coming from below. Has anyone done this? iF so, what were your results and how much did you need?

05-29-2012, 09:09 PM	#600 (permalink)
MacLean A True Z Fanatic Join Date: Apr 2012 Location: Houston Posts: 1,589 Drives: '12 GM Nismo # 0445 Rep Power: 16	Mwagner07 glad you finished everything up on B-Quite Ultimate install. I would agree that having the wrong psi (too much) would cause a lot of road noise. __________________ l Meisterschaft Full Cat-Back Exhaust l F. I. Resonated High Flow Cats l Stillen Gen 3 l M370 Intake Manifold l UpRev l JWT Clutch & Flywheel l ZSpeed HD CSC l Stillen 19 Row Oil Cooler l ZSpeed Powercoated Under Tray l GTSpec: 6, 4, 2 Point Brace l

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