to blow out the smoke the car produced
In brief, you will blow the engine.
YES
it is so that your car doesn't blow up
You could blow your engine up.
There are several ways to blow up a cars engine. If your car loses all its oil and you don't shut off the engine you could blow it. You could blow it by over revving the engine for long periods of time. If the engine doesn't have water in it it could run hot and quit.
a blow piston or a head gasket in your engine
Because it will stop and then car will braked . Engine will be blow up .
it is drawing the hot air off the engine.
How do you blow a engine turbo.
Probably not. You will either blow a fuse or blow your speakers before you do any damage to the electrical system in your car.
It can cause massive Engine failure and blow up the whole car, so be careful.