Donny is the Winner of the 2012 International Book Awards. Donny Petersen offers the real deal in performancing your Harley-Davidson Twin Cam. Graphics, pictures, and charts guide the reader on a sure-footed journey to a thorough H-D Twin Cam performance understanding. Petersen's insight makes technical issues understandable even for the novice. Donny simply explains what unfailingly works in performancing the Twin Cam. This is the second volume of Petersen's long-awaited Donny's Unauthorized Technical Guide to Harley Davidson 1936 to Present. This twelve-volume series by the dean of motorcycle technology examines the theory, design, and practical aspects of Twin Cam performance. Donny studied privately with Harley-Davidson engineers, having worked on Harleys for over 35 years. He founded Toronto's Heavy Duty Cycles in 1974, North America's premier motorcycle shop. Donny has ridden hundreds of performanced Shovels, Evos, and Twin Cams across four continents doing all of his own roadside repairs. He has acquired his practical knowledge the hard way. Donny has the privilege of sharing his performance secrets the easy way. Donny will walk you through detailed performancing procedures like headwork, turbo-supercharging, nitrous, big-inch Harleys and completing simple hop-up procedures like air breathers, exhausts, and ignition modifications. Donny Petersen feels honored to share the wealth of his motorcycle knowledge and technical expertise.

Many people modify their Harley-Davidson engines--and find the results disappointing. What they might not know--and what this book teaches--is that emphasizing horsepower over torque, the usual approach, makes for a difficult ride. Author Bill Rook has spent decades perfecting the art of building torque-monster V-twin Harley engines. Here he brings that experience to bear, guiding motorcycle enthusiasts through the modifications that make a bike not just fast but comfortable to ride. With clear, step-by-step instructions, his book shows readers how to get high performance out of their Harleys--and enjoy them, too.

For Harley-Davidson aficionados, the very name Sportster conjures an image of a fire-breathing mechanical beast scorching the world’s tarmacan image the Sportster itself often does not live up to. Straight from the factory, in its standard form, the Sportster routinely proves an entry-level motorcycle providing a relatively tame ride. This book aims to change all that and to show every Sportster rider how to free the beast in his or her bike. With expert, detailed advice on the proper mechanical massaging and plenty of helpful diagrams and photos this updated, third edition of Buzz Buzzelli's best-selling handbook shows how the Sportster can be transformed into the superbike of old. Including a history of the Sportster from its birth in 1957 to the recent introduction of a new engine (only the third in its long life), this book has everything it takes to open up the gates of hell and give the Sportster its head.

Now more than ever, Subaru fanatics have a wealth of factory and aftermarket performance upgrades at their disposal. In High-Performance Subaru Builder's Guide, author Jeff Zurschmeide explains in detail the similarities and differences between the Subaru models, and describes how to modify each for performance on the street and at the track. He uses over 300 color photos to show you how to modify your Impreza, Legacy, WRX, or STI for improved acceleration, handling, braking, and style. The book provides detailed chapters explaining how to modify the intake, exhaust, turbocharger, and computer systems for more horsepower and torque--plus info on upgrading your drivetrain to handle all that power. If taking corners is your thing, you'll find chapters on the suspension, steering, chassis, brakes, and wheels and tires. A special chapter even shows you how to get started in your favorite type of racing, including examples of successful racers and their cars.

Performance coach Alan Stein Jr. shares the secret principles used by world-class performers that will help you improve your productivity and achieve higher levels of success. High achievers are at the top of their game because of the discipline they have during the unseen hours. They have made a commitment to establish, tweak, and repeat positive habits in everything they do. Raise Your Game examines the top leaders in sports and business and proves that success is a result of the little things we do all the time. The basic principles provided in Raise Your Game are simple, but not easy. We live in an instantly downloadable world that encourages us to skip steps. We are taught to chase what's hot, flashy and sexy and ignore what's basic. But the basics work. They always have and they always will. Raise Your Game will inspire and empower you to commit to the fundamentals, create a winning mindset, and progress into new levels of success.

This book from Wolfgang Publications shows how and why of performance engine building with 500 color photos. Not a what-to-buy-book - it's a how-to-build book. Take advantage of the knowledge shared by the R&R Cycles crew.

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.

High-performance '94-'04 Mustangs represent the high-water mark for late- model Mustang enthusiasts. From the '94-'95s with the 5.0L, through the '96-'04 models with the 2- and 4-valve 4.6Ls, to the Bullitt, Mach 1, and factory supercharged '03-'04 Cobras - never before has such a range of highly modifiable performance cars been available. These Mustangs were amazing performers straight from the factory, but they can be even better with the right combination of performance parts. Regardless of which '94-'04 Mustang you start with, the availability of high- performance parts is unparalleled. You can build your Mustang for drag racing, road racing, or improved street performance - and High- Performance Mustang Builder's Guide 1994-2004 will show you how! Author Sean Hyland uses over 300 photos to explain how to upgrade your Mustang's engine, suspension, chassis, transmission, rear end, brakes, and body. There's even a special chapter on getting active in various forms of organized racing.