Having never driven another Z other than my own, I have a question for everyone. My car (DSB Performance 6sp) has roughly 500 miles on it and ever since I bought I though that their was alot of vibration and rumble in the drivetrain. Here is what I mean. You can feel a sort of cyclical vibration (and hear a rumble) in the clutch and gas pedal during while driving and accelerating. It is in all gears and much more noticable than I remember from previous cars (many Hondas as well as a 94 RX7 TT).

I am wondering if others get the same sensation. Maybe their is not much isolation in the system ? It almost feels like a slight "knocking" every revolution. I wonder if something is out of balance /misaligned ? By the way, it does not do this coasting.

Thanks
Johnny
Savannah Ga