Solid Metal motor mount?
 

I just picked up an OEM motor mount to replace my failed one, but the rubber doesn't look anywhere near sufficient which I guess is why they fail so often. I'm thinking about sending it to my machine shop and having a solid metal bushing installed. Has anyone done this? Does it make the car miserable?

Depends on what level of NVH (noise, vibration, and harshness) you find acceptable.

When my stock engine mount failed, I installed a semi-solid or "performance" motor mount which transmittted quite a bit of vibration from the engine to the chassis and cockpit. I was able to sit at a light and see the reflection in the rear-view and side mirrors vibrate. I would guess that a solid mount would be much worse.

For me, this level of vibration might be acceptable in a track-only car but not for my daily driver so I switched back to a stock motor mount (which I'll probably have to replace again in 50K miles).

I was going to point you at Pedro's up-rated engine mounts, but it looks like they've been discontinued: http://www.pedrosgarage.com/Site_2/TechnoMount.html

A solid metal motor mount may cause problems with knock sensors. There was quite a ruckus about the semi solid ones (which I have) on another forum. The semi solid increases NVH a lot, a solid metal one would indeed be unbearable if it does not mess up the knock sensor.

I really like the Wevo mount, you might as well.

Since the new stock mount has a large cavity on ether side I'm going to fill it will polyurethane and see how that goes. I've done it before on a BMW mount with success.

Most people don't realize the amount of vibration the engine can transfer in a mid-engine configuration. There has been more people here switching to a race mount, realizes they feel the vibrations in their bones and went back to the 987 mount than I can count.

Even if you can stand it I don't think your girlfriend/wife will. :cheers:

I installed the old Pedro Race Mount a while back. It is essentially solid PU. While the initial feeling was WOW, this feels so tight, the enjoyment does seem to trail off with time.

The only downside I have experienced is that my car seems to have a LOT more rattles now than prior to the solid mount.

Also, and I am only speculating here, I think that it may have made the transmission mounts work harder and wear faster. Perhaps someone with greater technical knowledge of these things could confirm or refute this??

I have solid mounts (engine and trans) on the '73 911 and you wouldn't want it in a street car.

Maybe going by looks isn't the best measure.

Solid mount = unbearable + it will likely trigger the knock sensors and retard timing and performance.