Book excerpt: Diesel engines work differently than the gas engines most horsepower enthusiasts are used to, so different performance principles apply. In High-Performance Diesel Builder's Guide, author Joe Pettitt teams up with diesel and turbo industry leader Gale Banks to explain how diesel engines work and how to set them up to make big power. Pettitt uses over 325 color images and covers how to upgrade your intake, exhaust, turbo, and fuel systems to build more boost and make more power. There's even a chapter on nitrous and propane injection. This is the first and only diesel performance book on the market.