Mine is also smooth normally, but after it has been run hard and long, it is a little rough. I would call it a loping roughness, a methodically, irregular idle. It eventually goes away after lower speed running.
according to the 2002 Corvette video its supposed to do that at idle (I think it was the 2nd clip that shows that)
Guys that video is too cool, I just have to say that again...all day during classes I was dreaming about changing the geares stepping on the pedal.....Wow I am craving now....Aslo I just wanted to say I got $1500 closer to my Z, I invested in AOL stock.....I am so pumped
At 1000 miles My 02 EBZ06 has a lope to it,nice! Great exhaust sound,smooth shifting and a great easy clutch.
My only concern is normal cruising DIC indicates 198 degree coolant temp.Could be thermostat on the high side?.My 99 always ran at 192 degrees.Any comments on temp ?