Hydroturbo

If you know anything about turbochargers, you know that it needs to suck dense air inside to make the inner impellers to spin via intercooler. The impellers then force air into the engine cylinders maiking them able to have a higher compression ratio which enables the engine to use more fuel at a time, which as you know sends a vehicle lurching forward from the boost that the turbocharger provides. Well, I have just thought of a whole new idea for a turbocharger: Why not make a turbo that uses pressurized water to make it's inner impellers to spin. It makes perfect sense. Water is already dense as it is, so why not have a water tank connected to a water cooling, pressurizing pump instead of an intercooler which fuels the turbo with cold pressurized air? If you have real dense, cold water going through the turbocharger at high speeds then the impeller could spin at very high speeds and force tons of air into the cylinders of an engine- contrary to an intercooled turbocharger which is fueled by pressurized air. Also, after the water leaves the turbocharger, it would be dircted back to the water tank via a series of more stainless steel pipes and go thorough the whole cycle again. And because the water is cooled by the pump at the same time, the turbocharger wouldnt get hot to the point where it would blow. Also, there are no electrical components in a turbocharger, so nothing could short out unless there was a leak in the system or the system was not assembled properly. You could use basically any water, although it would probably be safer to use distilled or spring water. If you were to use stainless steel for the metal components for the whole turbo system, the water would not corrode it. The idea was originally planned for a boat's engine, but why would you not be able to use it for a car's engine?