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High-Performance Cams & Valvetrains: Theory, Technology, and Selection

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$36.95
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Product Code: SA533
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High-Performance Cams & Valvetrains: Theory, Technology, and Selection

Your Price:
$36.95
Currently out of stock

Understand the "magic" of how optimized camshafts extract the most performance from every engine component, eliminating valvetrain guesswork.

Camshafts are the coach and conductor of any four-stroke engine from early flatheads to modern Formula 1. Performance engines are amazingly sensitive to how and when the valves to the combustion chamber open and close. The valvetrain configuration and flow characteristics may change significantly between applications, but the fundamental principles are universal. This allows the language, setup, dynamics, energy, and pressure aspects of a valvetrain to be covered in a way that is just as useful for optimizing a sub-15-hp go-kart engine as it is on a 500-plus-hp street engine or a modern 1,500-plus-hp NHRA Pro Stock engine.

In High-Performance Cams and Valvetrains: Theory, Technology, and Selection, farm-kid-turned-physicist Billy Godbold combines his quarter-century of experience with valvetrains at Comp Cams, Lunati, Crane Cams, and Edelbrock with the techniques he uses with professional teams in NASCAR, the NHRA, road racing, dirt-track racing, offshore racing, and land speed racing. He guides you to think about any valvetrain system with his perspective. Often lighthearted and filled with analogies, this book endeavors to make complex concepts easy to understand without watering down important details.

Specific configurations and applications are covered, providing techniques and examples for optimizing camshafts and the valvetrain around intakes, headers, superchargers, turbochargers, fuels, carburetors, and modern EFI applications. If you are planning or building a performance engine, or if you just want to know the science behind how cams and valvetrains work, this book is an indispensable resource.

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Understand the "magic" of how optimized camshafts extract the most performance from every engine component, eliminating valvetrain guesswork.

Camshafts are the coach and conductor of any four-stroke engine from early flatheads to modern Formula 1. Performance engines are amazingly sensitive to how and when the valves to the combustion chamber open and close. The valvetrain configuration and flow characteristics may change significantly between applications, but the fundamental principles are universal. This allows the language, setup, dynamics, energy, and pressure aspects of a valvetrain to be covered in a way that is just as useful for optimizing a sub-15-hp go-kart engine as it is on a 500-plus-hp street engine or a modern 1,500-plus-hp NHRA Pro Stock engine.

In High-Performance Cams and Valvetrains: Theory, Technology, and Selection, farm-kid-turned-physicist Billy Godbold combines his quarter-century of experience with valvetrains at Comp Cams, Lunati, Crane Cams, and Edelbrock with the techniques he uses with professional teams in NASCAR, the NHRA, road racing, dirt-track racing, offshore racing, and land speed racing. He guides you to think about any valvetrain system with his perspective. Often lighthearted and filled with analogies, this book endeavors to make complex concepts easy to understand without watering down important details.

Specific configurations and applications are covered, providing techniques and examples for optimizing camshafts and the valvetrain around intakes, headers, superchargers, turbochargers, fuels, carburetors, and modern EFI applications. If you are planning or building a performance engine, or if you just want to know the science behind how cams and valvetrains work, this book is an indispensable resource.

Pages : 192
Size : 8.5 X 11 (inches)
Format : Paperback / softback
Illustrations : 457 color photos
Publisher : CarTech
ISBN : 9781613257548
Product Code : SA533

Chapter 1: The Language of Camshafts

What is a Camshaft?

Basic Terms

Cam Degrees versus Crank Degrees

Intensity

Specification Cards, Comp Adcole Reports, and Published Lobe Data

More on the Specifications Card 

Adcole Inspection Report 

 

Chapter 2: Valvetrain Blueprinting 

Setting Rocker Height

Setting Lash or Preload 

Calculating Optimal Spring Setup Height 

Degreeing a Camshaft 

Piston-to-Valve Clearance 

Advanced Blueprinting 

Specific Stiffness 

 

Chapter 3: A Dynamic Understanding of Profiles: Velocity, Acceleration, and Jerk 

Velocity 

Acceleration 

Jerk 

Closing Loads Past the Buckling Point 

 

Chapter 4: Energy and Four-Stroke Engine Fundamentals

Follow the Energy 

What is Horsepower? 

BSFC and Efficiency 

The Otto Cycle 

Volumetric Efficiency 

 

Chapter 5: Under Pressure 

Measured and Theoretical Otto Pressure versus Crank Angle

PV Diagrams 

 

Chapter 6: Understanding Valve Events 

EVO 

Overlap 

IVC 

 

Chapter 7: Wave Tuning 

Starting at EVO 

Optimizing Intake Port Length 

Unequal-Length Intake Runners 

 

Chapter 8: Moving Valve Events 

Standard Optimization Techniques 

Improved Optimization Techniques 

 

Chapter 9: Camshaft and Cylinder Head Selection 

Exhaust to Intake Flow Percentages and Flow Curve Shapes

Cylinder Head Configuration 

The Combustion Chamber 

CFM per Cubic Inch 

 

Chapter 10: Other Engine Considerations 

Bore-to-Stroke Ratios 

Rod-to-Stroke Ratios 

EFI versus Carbureted 

Octane and Other Fuel Considerations 

Variable Advance, Centerline, Duration, and/or Lift Systems

Variable Displacement Systems 

Power Adders 

Valve-Spring Selection with Boost

Thermal Management 

 

Chapter 11: Valvetrain Selection

Camshaft Type 

Deciding Target Lift 

Selecting Lift and Profiles around the Valve Spring 

Rocker Ratio, Journal Size, and Lifter Wheel 

RPM and Durability Targets 

Comparing Profile Aggressiveness 

Optimizing the Camshaft for the Application

Why Do Cam Guys Ask so Much about My Vehicle?

 

Chapter 12: Camshaft Selection Examples 

Small-Block Chevy Crate Upgrades: 350 versus 383 

Street versus Racing 

GM 5.3L LM7 Cams: C10 pickup to Circle-Track and Drift

6.4L Hemi: Blower and Cam Packages 

 

Glossary

High-Performance Cams & Valvetrains: Theory, Technology, and Selection

$36.95

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