Clutch Noise: Causes and Solutions

Hello,
This is a C4 TDI AEL engine, chipped to 170 horsepower. Since the performance upgrade, I've been experiencing the following problem:
'When I release the clutch relatively quickly when starting, there's a strange noise, it sounds like something is vibrating, humming, or rumbling. It's only brief and only happens when starting. In the first two gears, the clutch makes fluttering noises when I give it a lot of gas, but I've read that this is supposed to be normal because it's a bit overwhelmed by the torque.'
But what is that booming sound, and what are the clutch and engine mounting?
Regards,
Martin.

martin119 wrote:

Hello, But what is that booming sound, and what are the clutch and engine mounting? Regards, Martin

You're probably in the best position to judge that, since no one knows your vehicle.

P.S. If you approach an intersection too slowly, drones are normal because the entire drivetrain revs up. Also, sometimes it happens when you accelerate quickly.

It's probably also partly due to the two heavy flywheels.