On the 4. 0 or 4.2 engine, it is available with a "supercharger". It looks more like a turbocharger than a supercharger. Is the term supercharger a British term or something like that? A friend showed me the differences today and supercharged doesn't seem to match up. Any answers out there?

 

The 4.0L S-Type was never available with a supercharger.

The 4.2L S-Type R was supercharged.

The Jaguar V8's have never been turbocharged from the factory.

A supercharger is driven mechanically by the rotation of the crankshaft, using a belt system.

A turbocharger is driven by the flow of exhaust gases.

This is what a supercharged 4.2L in an S-Type R looks like:



The supercharger is in the V of the engine, under the intake pipe that runs over the top.

 

Thanks Cam, that is what I was looking for.

 

Turbos have a lag that SCs don't have. Look up Blower Bentleys

 

Supercharging is a better alternative for producing extra power from a petrol engine. Turbocharging is a better alternative for producing extra power from a diesel engine.