As of recently. I have started to get a weird vibration around 2200 rpm. It's not a constant rpm and if it's under load the vibration doesn't really happen. I get the vibration if I rev the car when in neutral, when the rpms drop in between shifts, and under slow deceleration. It starting happening soon after a shop built a custom top mount turbo setup. The noise went away when my wastegate got repositioned after an incident with the radiator...lol. then the wastegate clamp came lose Rotated down , and took a chunk out of my radiator again. I then rotated the wastegate again and the vibration came back. Now when I rev the car now I can see the wastegate tube from the manifold and wastegate vibrate and make the noise. the tube for the wastegate is not cracked or anything.

I do not have balance shafts and I do have an exedy twin disk. I have been told the exedy twin can cause some vibrations. What does everyone think

 

Clutch would not have caused the vibration. Most likely it because of the MISSING BALANCE SHAFT.

 

Are you complaining about a vibration, or a noise?

Your'e going to get harmonic vibrations because you don't have balance shafts.

 

It'sboth actually. I know I'm going to get more harmonic vibration. I'm just double checking everything to make sure it's not something terrible. I kind of figured it was because of the balance shaft delete. I'm going to have the shop weld a brace on that wastegate tube to stop it

 

So I'm not sure if it matters. I am running a fluidamper crank pully. A local guy was saying that it could be that. It's been on the car for a couple years. Anyone have this issue? I am going to put the stock one back on this weekend and see what happened. It's only the tube to the wastegate and the wastegate that vibrate

 

That fluidampr part should help reducing the vibration - not to add to it.
I assume your wastegate and the tube to it is a v-band, correct? Your brand may be worn and should be replaced if it's allowing your gate to rotate.

 

no. The v band was not tight enough so it came loose on a long trip and rotated down. After I cranked it down really good, it stayed and has stayed.