how turbo engine in cars?

Answer 1

Turbo's use the exhaust gas to turn an impeller that will also compress the air going into the intake manifold, increasing the amount of air and fuel in the cylinder will increase the power. Maintenance is increased some with the turbo. Oil changes become more critical and some other operating things must be done to ensure longer life. Like letting the engine idle down to spool down the turbo before shutting off the engine

Answer 2

Turbo is the best value for bolt on horse power, to get the gain in any other way is major surgery in the engine. You can easily double your horse power depending what your starting with.
A turbo powered engine can last as long as regular engine depending on how heavy your foot is. You can also blow your engine in 5 minutes .