When the engine is warm and i press the clutch and rev i hear that pitching sound I even can feel it as pulse in the gas pedal. The sound as If i have my radio on when accelerating and it goes right away when the rpm goes down. I have 7.5lb flywheel and a 6 puck clutch. It's becoming very annoying and I hope it's not associated with oil or water pump.

 

Check your pulleys/belts that might be your problem. My PS belt makes a whine kinda makes it sound like its supercharged.

 

I think your right. I noticed the sound is more noticable when i turn the steering wheel! I will check that. Thanks.