That's a supercharger. The head caused by the compression is only part
of the story and why an intercooler is not as necssary on a
supercharger. Because a turbo runs off the exhaust, the housing gets
very hot which in turns has a great effect on the air being compressed.
Martin
Pete Berveiler wrote:
I believe there are belt-drive turbochargers as well
as exhaust drive. Intercooler is key to performance,
as heat generated in compression robs the power
benefit of the compressed air.