Insulated Targa Top, Does your cab reverberate a lot? Options

[Brando]

I'm tired of my top reverberating noise like a concert hall..

So, I dug out my old sound insulation for my beetle... clean it off, vacuum it and grab the 3M spray adhesive... I also got a sheet of cloth (polyester??) that's got some 3M super-adhesive backing. It's white but can be colored easily.

I'll see how it sounds in comparison tomorrow on the freeway.

Pics coming soon.

[Brando]

Another thing a fellow past-914 owner friend of mine did...

He replaced his trunk seals (front and rear), and had no leaks. He then used the same kind of aluminum-back insulation from JC Whitney on the whole trunk areas. He said it dampened alot of the noise of the car and made it sound solid. Bumps in the road didn't make it go CLANK THUNK but "bump thud" very lightly. Once I get fresh seals I'll try the same.

I drove around tonight with just the padding in the targa top... WOW what a difference. Didn't sound like an engine running in a closed bathroom.

Shaggy, your question about the engine padding... YES the firewall padding does make a difference. It absorbs alot of the mechanical noise and high-range noise from the engine. Another thing you can do is take your back-pad off and add about an ¾" or 1" of sound-absorbing padding behind there. It does help somewhat. Dynamat fatmat is the good stuff.