Quote:
Originally Posted by Bad Anvil Garage
It actually does bother me a bit. Makes it feel like there's something "wrong" with the car. I just want to know from GM why it does this.
|
It is just some sort of NVH/resonant vibration from the drivetrain that is brought about by some specific frequency under certain rpm's and loads. That's even what GM would tell you. Many cars have this, it may just not be in a noticeable range while driving, or it may be better dampened or insulated. Remember our cars are performance cars, so that means less of all the stuff that would normally block something like this. Motor Trend even mentioned some NVH was noticeable in this range during their SS vs M4 test video, and they said "it fit the brash nature of the car". So they surprisingly actually didn't care at all.
Now, even with that being said, even though it really doesn't bother me, as I don't drive in that range all that much (leisurely driving is below it, and hardcore driving is above it), sometimes I do hit it though, like merging a little hard on the highway. So if we knew for sure what it was, and it was something we could swap out (like mounts) I would be game, as they wouldn't be too much money to eliminate the issue. But unless someone is the guinea pig, or somehow tests for the source, I doubt there will ever be a resolution. The rest of the car is so badass, I don't even dwell on such a minor thing, especially being that it is "normal" and on everyone else's too.