OK, here we go, I thought I had posted a big long thing on my motor mounts a while ago but I must have messed up and never hit submit or something.
There is a nice mod that anyone can do with probably any type of motor mount. I was concerned that it wouldn't be possible with RWD mounts until i just did it. I've done it lots of time with FWD mounts though. They are more straight forward because they have have gapping holes in them that are asking to be filled. The RWD mounts you have to be a little more artistic in your ability to fill
around them. The tranny mount is straight forward though.
Go to your favorite autoparts store such as Autozone, Advance, Kragen, whatever you have where you live and get 3M window weld. It's a black silicone substance that cures to a nice firm rubbery type compound. Cut the tip large and fill in the tranny mount and fill around the plates in the two engine mounts and use pieces of cardboard to
sculpt the Window weld in and around the mounts. Then let them cure for a day or so, or better yet bake them in an oven around 150 degrees over night.
I've often wondered how these treated mounts compare with the Nismo mounts that you can buy. Be forewarned you will receive a lot more NVH throughout the cabin of the car and things will rattle and shake. I wonder how the stiffness Vs. NVH compares with filled mounts Vs the Nismo mounts. I know my filled mounts feel great. The engine does not flop to one side when I blip the gas which I hated tremendously.
Anway here's pics...
