Turbo chargers are driven by the exhaust gas. IE the work of the engine pushing the exhaust gas out of the combustion chamber is used for compressing the intake air.
Superchargers are driven by belt and pulleys of the crankshaft. IE it requires power to work.
Turboes can make very high boost pressures but they heat the intake air a fair bit, hence the need for intercoolers. Plus there's always the turbo lag, Turboes usually kick in with a small delay and rpms above 2000.
Superchargers often work from idle, if they’re of the "pump" type e.g. Eaton or Opcon. Superchargers of the "impeller" type gradually increase the boost. Rotrex (used by Autodelta and Novitec), Vortech and Powerdyne are examples of the impeller type Charger.
Turboes are good for high output, but high thermal strain on the engine, and the plumbing is a nightmare: Cooling and oil feed to the turbo + new exhaust manifold.
Superchargers of the roots type give low end torque but are lumpy and often expensive, no thermal stress but they can be a bit noisy
Superchargers of the impeller type gives a steady rising boost and are often compact units easy to fit, very little thermal stress but very little improvement on low down torque.
Depending on how much horsepowers you want = Boost pressure; you might need to have forged pistons with lowered compression installed. You definitely need larger/more injectors and a remapped ECU. For turbo applications, intercoolers are a must have, but generally a good idea on all forced induction projects.
There’s a lot of work involved in making up all of the plumbing, but when it finally works, it's all worth it
Feel free 2 ask any questions if I left something out.