I had my boxster in the indi shop for a front bumper replacement (looks great BTW), so I also had them install Pedros Enthusiast front motor mount. I was going to do it myself as a weekend project, but the shop already had the car up in the air. When I talked to Pedro, he said that their Enthusiast mount that they had on hand had a little harder compound that would transmit more vibration and that I may want to wait for the next batch of mounts made up with softer material.
Because my car was not going to be in the shop long, I went ahead and got the mount with the harder compound. Well, it may be the cold weather, or it might be the GT3 seats I have, or it might be the lightweight flywheel I have, probably a bit of all three. But there is a fair amount of vibration with the new mount. Car shifts better, no clunking that was going on before, thats all great. I will have to put some miles on it, especially some long trips to see how I settle in with it.
Its interesting, it makes you aware of just how much vibration is comming from the engine when it is more tightly coupled to the body. Makes it more clear why a dual mass flywheel or some mode of damping harmonics seems like a good idea. Also, its clear as others have said that a front mount on a car with 90K like mine was toast,
Ed
