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Description
Donny's Unauthorized Technical Guide to Harley Davidson 1936 to Present: Volume II: Performancing the Twin CAMDonny 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
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.
Binding Type: Paperback
Publisher: iUniverse
Published: 12/24/2008
ISBN: 9780595527458
Pages: 740
Weight: 2.36lbs
Size: 9.10h x 6.06w x 1.74d
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★★★★★ 5
Purple suite
Color: Lavender Purple, Size: 16, Color: Lavender Purple, Size: 16
Love it was perfect. The color was nice it was soft and the size was perfect . I bought the purple one.
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Reviewed in the United States on April 5, 2026
★★★★★ 1
The suit was ripped badly
Color: Ivory, Size: 6
It had rips all through
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Reviewed in the United States on March 23, 2026
★★★★★ 4
Not quite right for me!
Color: Sage Green, Size: 16
It’s not as high quality as I thought it would be 🤷🏾♀️
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Runs small
Color: Beige, Size: 6
Runs small
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Tela súper cómoda y elástica.
Color: Light Khaki, Size: 36W x 32L, Color: Light Khaki, Size: 36W x 32L
Excelente calidad … mi esposo quedo encantado con el pantalón y el color. Luego compré un saco mismo color y quedó espectacular!!! Lo súper recomiendo
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Reviewed in the United States on May 25, 2026
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