Book excerpt: The photos in this edition are black and white. Lightweight and high-revving, sport compacts are today's most popular cars. They have developed a cult following among today's youth and are fueling a multi-million dollar industry in modification parts and equipment. While most owners of sport compacts can afford the simple bolt-ons available, some owners want to take their modifications a step further. There is intense competition to be the fastest, and quite often the only way to win is to go to the next level - by installing a supercharger/blower or turbocharger on your engine. This book is an enthusiast's guide to understanding, installing, and using turbochargers and superchargers on sport compact cars. It covers the basics of each system and compares their pros and cons. Typical installations are covered and explained in detail, as is building and tuning smalldisplacement 4- and 6-cylinder engines to maximize performance and reliability with forced induction.