[TitaniumTT]

Originally Posted by classicauto

whats the story on the plugs?

Seen new plugs foul almost instantly from being gobbed with vaseline/assembly lube after the first start up. I'd toss a fresh set in and just see what happens.

That would be my first guess as well. I've had new plugs foul within 15 minutes of running from being gobbed up. Just all of sudden lost rotor..... stupid D580 coils

Originally Posted by classicauto

I dunno about the mismatch rotors. I've run a S4 flywheel on an S5 (out of necesity for a breif period of time) and even with that I didn't really get any vibration you could detect just running the car. I'm sure it was wobbling due to the rear bearing being shot after but no noticeable engine vibration at all. And I'd think that difference is greater then one wrong weight rotor......but....its uncertain.

Usually a heavy vibration like this is a misfire - which system its related to though I can't say for sure but would bet ignition.

Have you tried rotating the CAS with it runnning and revving and see if gets worse or better?

Maybe of it's two rotors from different series, different weights it might be off enough to FUBAR it.

My guess would be start at the ignition. Just becuase they're new plugs doesn't mean they;re not fouled. Just becuase they're new wired doesn't mean they're fuctioning properly. Just becuase they're new injectors, doesnt' mean they work either..... speaking of, what the story behind the injectors? I've heard rumors about the cleaning agents they use corroding the injector's frozen if they sit for long enough after a cleaning. Might wannaa send them out and see if they're in tip top shape.