So a few days ago I noticed a weird winding noise almost as if the car was supercharged. Thought it could be the timing belt but happens when in gear (1-6) and accelerating. No noise free revving the car, sound goes away as soon as I let off the throttle or push the clutch in. I also get clutch chatter when idling, pushing the clutch in the chatter goes away. Car accelerates fine, goes into gears smoothly and is not slipping. Any ideas?