[Z06] Noise Reduction
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 988
Likes: 4
From: Livermore CA
Noise Reduction
Anyone tried any road noise reduction techniques such as dynomat under the carpets and in the door panels of your ZO6 or any other tips? I'd gladly give up a few pounds of weight (dynomat is heavy) to cut some decibels on concrete highways.
Drifting
Joined: May 2004
Posts: 1,822
Likes: 2
From: San Clemente CA
If you don't already have one, a partition is the best bang for the buck. It will quiet the cabin considerably, especially rear suspension and exhaust noise. With my partition, the biggest culprit is the tires on concrete surfaces. Otherwise, the car is very quiet and civilized for a such a great performer! 
Instructor
Joined: Mar 2004
Posts: 179
Likes: 0
From: Sunnyvale Ca
I had the Dynomat installed in most of the car when I had the sound system upgraded. The extra weight was insignificant. It had a positive effect on the noise level although I was hoping for more. I would say it was worth the investment. 
Pro
Joined: Sep 2003
Posts: 684
Likes: 1
From: Las Vegas NV
I installed 2 layers of Dynamat. You can check the pics out under "my Corvette Photos" Took about a day and a half to do. I have a supercharger, headers and borla stingers. Was very loud before. It did help quite a bit. I still need to do the roof of the trunk lid and the doors which should also help. I may install a third layer.
The total weight was about 65-70 lbs.
Supercharger + More weight in the rear = more traction
The total weight was about 65-70 lbs.
Supercharger + More weight in the rear = more traction
Advanced
Joined: Apr 2002
Posts: 96
Likes: 0
From: Norristown PA
Tell me about the Pilot Sports
Originally Posted by Rob's 73
Tires are the biggy. Running Mich Pilot Sports and the sound is easily cut by half.
Drifting
Joined: May 2001
Posts: 1,770
Likes: 2
From: IL
Originally Posted by slamar1
I installed 2 layers of Dynamat. You can check the pics out under "my Corvette Photos" Took about a day and a half to do. I have a supercharger, headers and borla stingers. Was very loud before. It did help quite a bit. I still need to do the roof of the trunk lid and the doors which should also help. I may install a third layer.
The total weight was about 65-70 lbs.
Supercharger + More weight in the rear = more traction
The total weight was about 65-70 lbs.
Supercharger + More weight in the rear = more traction
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Racer
Joined: Jun 2004
Posts: 265
Likes: 0
From: malibu ca
I've both dynamated and partitioned my ride. With the new Route66 exhaust instead of PRT's and the NittoRII tires, it's pretty quiet in the car. You can have a conversation with a friend, without raising your voice.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Do an advanced search under Frost King! This is a VERY worth while MOD and makes a big difference in cabin noise from the tires and wind over the body!
Melting Slicks
Joined: Apr 2000
Posts: 3,286
Likes: 8
From: San Jose California
Someone else on the forum shared with me that the void behind the drivers seat, to the front of the inner rear fender skirt is a huge source of noise. I removed the fender skirt (very easy to do) and filled this void with standard fiberglass insulation. You need to pack around the gas tank filler tube. Since the drivers side was so easy to do, I removed the passenger rear fender skirt and put some insulation up there too.
Chuck
Chuck