Good evening, have a question: the following scenario: You drive by car (motor charged with turbo) and go off the gas at full gas. Therefore the turbocharger continues to rotate. However, since the throttle valve is closed, an overpressure would now arise in the compressor side and slow down the turbo, or possibly destroy it? 1.) How is the excess charging pressure reduced? Have already researched a bit and am now at the following level. Please correct if what f thanch is. Blow-off valves are installed, which simply let the charging pressure out into the open (hence the hissing of the whole tuned carts). But is ineffective because the turbo has to return to speed at the subsequent gas. Thus a turbo hole arises again. But there are apparently also so-called thrust air valves, which hold the loader at speed with a certain circuit. 2.) Can anyone explain this to me more precisely? Is it too complicated for me on all the other sides :/ 3.)Which principle is used with conventional vehicles? 4.) Is there a difference between petrol and diesel engines? I also read that it is somehow no use with diesel engines. Don’t understand why … Thanks already in advance!