Why do we use superchargers?
Moreover, are superchargers good for engines?
Increased horsepower: adding a supercharger to any engine is a quick solution to boosting power. No lag: the supercharger's biggest advantage over a turbocharger is that it does not have any lag. Low RPM boost: good power at low RPM in comparison with turbochargers. Price: cost effective way of increasing horsepower.
In respect to this, why superchargers are better than turbos?
A supercharger doesn't work off the exhaust gas, it is attached to your engine and spins with the crankshaft. When the crankshaft spins the supercharger, it forces air into the motor. The turbo is more efficient as it doesn't require engine power to spin it, so it makes more power per boost.
A supercharger is any device that pressurizes the air intake to above atmospheric pressure. Both superchargers and turbochargers do this. Turbochargers are powered by the mass-flow of exhaust gases driving a turbine. Superchargers are powered mechanically by belt- or chain-drive from the engine's crankshaft.