Kataklysm

Went to the track last night and ran a best of 14.2 @ 96 mph. Thats with a 2.0 60' and a .731 r/t. The car is having alot of vibrations, especially when I let it roll forward without touching the gas or brake, it jumps alot. The rpms never bounce, no gauges acting up and I don't get any lights. Its a 95, a4, mac headers, high flow cat, dynomouth, sfc, lca, stb, phb, 160 thermo and 3.23 gears. What could it be? Any info GREATLY appriciated.

Robs97Z28

when was the last time you checked the front wheel bearings?

Kataklysm

Never, car only has 53k on it. It feels like vibrations coming from engine/tranny.

Robs97Z28

what does it act like with the trans in neutral, not rolling, and rev the motor up. does the vib get worse...

stereomandan

Sounds to me like you are misfiring. It could be your IAC also.

Also, have you checked for arcing at night, when you can see it?

Dan

Kataklysm

Its raining outside now, I was planning on going out and messing around with it. When I was fixing a header gasket I saw a wire got chewed up by one of the pulleys, it stripped off the insulation. I'm hoping thats all it is. I'm not hearing any misfiring.

bunker

ussually a dead cylinder or 2 makes huge vibrations at part throttle & under load, major ones you'd never think its the engine.

CrAkD X 95TA

haha yep it was a dead cyl but only cause a pully hacked off the boot. easy fix.

Kataklysm

I'll try to get a pic up of the wire that got demolished in the pulleys.