I have a vibration that i can't find i get worse the higher i rev it ... I don't think its drivetrain because i can push in the clutch and rev it and there is no difference anyone had this kind of trouble before?

 

you may want to check your tires or alignment. just a thought.. i've had simular experiences. where does it come from, front back, or engine, left or right??

 

if this vibration ocurrs when driving if not, then disreguard my message

 

Yeah it does it setting still and reving the engine.

 

Have you recently changed any belts or anything?

Is the motor coming from rolling only or with the motor running (at a stop)?

 

Yes, I just bought a JDM engine and they changed the timming and BS belt. I just put it in last week and everything was doing fine until yesterday it started this aweful vibrating or grinding noise at high revs. I can crank it up in the driveway and rev it up to about 4k and it starts sounding aweful.

 

What kind of noise? I am thinking something with the balance shafts or something wasn't tensioned right.

 

maybe its your exhaust hitting the body of the car. Check your hangers and stuff like that.

 

well, its hard to explain the noise but it kind of sounds like a bad wheel berring (thats not what it is but thats what it sounds like) my timming belt is really tight will that cause that problem?

 

maybe they didnt line your balance shafts up when putting the belt on. i think thats what happened to mine, after a few thousand miles of that i got to replace all my bearings