Noise Reduction Techniques
I've had a lot of success making my shark quieter. Did the full Dinamat
treatment to the floors and side panels, very minor improvement. The biggest
change with the Dinamat was when I did the doors, which helped much more than
the floor (with Dinamat).
Still not satisfied, I then removed the rear wheel arch liners on the front
half of my 89GT. Most of the noise I was hearing, besides my RMB, was tire
noise. I then stuffed "Closed Cell" foam into the two cavities and
injected the foam in a can you can buy at Home Depot. Took about two cans on
the driver's side and one can on the passenger side.
WHAT A DIFFERENCE! This final step almost completely eliminated all of the tire
noise! I discovered my stock stereo speakers had frequency and tonal range I
didn't know existed, the equivalent of adding about 20 watts to my stereo amp.
Total cost less than $20.00.
Try it, you won't be disappointed. One last point, be sure to use closed cell
foam, it won't absorb moisture and hold that moisture up against your body
panels. If you can't find the closed cell foam you could use just the injected
foam in a can, but it will take a lot more.
Jim Mayzurk