jwawhite said:
Picked up my new '03 Anny Red Coupe from out-of State this week and the interior noise can be deafening --depending on road surface it can be very noisy inside.
Has anyone tried to do something about this? Is it the run flats? Can some insulation be installed at the wells/interior?
I feel (or hear?) your pain....:cry
There are some extensive threads in CorvetteForum.com that discuss fixes people have developed to reduce the noise. You will also note that in virtually all of the articles about the C6, noise reduction from C5 levels was mentioned as one of the critical design goals. Unfortunately, GM has not released a kit to retrofit the C6 developments to the C5, although some are hoping that the Goodyear runflat tires (developed for the C6), the source of the noise, may be available in the 3rd generation design for the C5 sizes at some time in the future. Other runflat tire brands reportedly create less noise, although some claim that is just a feature of a new tire, as they age they appear to become noisier.
Dynamat has been used by some people, it is a "a patented, lightweight elastomeric butyl and aluminum constrained-layer vibrational damper" according to their website. It bonds directly to the surface it is applied to.
There are other materials available, I am looking at material from Soundcoat, which is a lead septum bonded between two sheets of foam. I believe it may be more effective than Dynamat, although the materials are rated by two different techniques, which makes direct comparison impossible (at least by me.... LOL.)
I made a Plexiglas divider for my coupe, which sepaarates the hatch area from the passenger compartment. I believe it works well, proof of the pudding is that when I turn the fader to all rear, I can barely hear the rear speakers at normal volume levels. Of course, the fronts make noise as well....
L
and am used to sidepipes, but even my wife commented it was too quiet.
