Book excerpt: Countless collector car owners are skilled at performing mechanical work, but for many of them, electrical work seems like a black art, too complicated and too confusing. However, electrical upgrades are absolutely essential for a high-performance classic car or a modified car to perform at its best. With a firm understanding of the fundamentals, you can take this comprehensive guide and complete a wide range of electrical projects that enhance the performance and functionality of a vehicle. In this revised edition (formerly titled Automotive Electrical Performance Projects) brilliant color photos and explanatory step-by-step captions detail the installation of the most popular, functional, and beneficial upgrades for enthusiasts of varying skill levels. Just a few of the projects included are: maximizing performance of electric fans; installing electronic gauges; upgrading charging systems; and installing a complete aftermarket wiring harness, which is no small task. Each facet is covered in amazing detail. Veteran author Tony Candela, who wrote CarTech's previous best-selling title Automotive Wiring and Electrical Systems, moves beyond the theoretical and into real-world applications with this exciting and detailed follow-up. This Volume 2 is essential for any enthusiast looking to upgrade his or her classic vehicle to modern standards, and for putting all the knowledge learned in Automotive Wiring and Electrical Systems into practice.