So it's been a month now with the 350z box. I've taken it out, bashed the ever living hell out of the tunnel and ensured I have at least 1-2 inches of clearance around the box.
Still have the vibration. Gonna loose my mind.
I spent a lot of time revving the motor (neighbours hate me) trying to figure out if its doing it only under load. I've found:
1) Vibration occurs if clutch is disengaged or engaged in neutral.
2) Vibration is worse under load.
I'm now wondering if it is either bad motor mounts, bad harmonic damper, or a bad clutch.
I have an exedy hyper single and I called exedy to ask if they can go out of balance, tech said it is unlikely and they are balanced to 15,000 RPM.
So is there a chance this could be a harmonic balancer or motor mounts? My balancer and mounts are OEM and ancient, but I can imagine they would cause a vibration this bad.
Thoughts?
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