| Product Details- 64 Pages
- 95 Photos & Illustrations
- Paperback
- Black and White
- Published in 2002
- Part of the SpeedPro Series
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| How To Choose Camshafts & Time Them For Maximum Power
By Des Hammill | Features
Explains in simple language how to choose the right camshaft/s for your application, and how to find the camshaft timing which gives maximum performance.
Also explained are all aspects of camshaft design and the importance of lobe phasing, duration & lift.
Applies to all 4-stroke car-type engines with 4, 5, 6 or 8 cylinders.
Avoids wasting money on modifications that don't work.
Applies to road and track applications.
In the 1990s there has been a huge resurgence of interest in modifying cars and motor cycles for higher performance.
Description
How to choose the right camshaft or camshafts for your individual application. Takes the mystery out of camshaft timing and tells you how to obtain optimum timing for maximum power. Applies to all four-stroke car-type engines. | Table of Contents
Introduction 5
Using this book & essential
information 6
Chapter 1: Terminology 8
'Duration' 8
'Phasing' 10
'Duration' and 'Phasing' 10
'Valve lift' 11
'Camshaft lobe lift' 11
'Overlap' 12
'Lift rate' 12
'Valve clearance' 12
Mechanical versus hydraulic
camshaft profiles 13
'Full lift' 13
'Full lift timing' 14
'Piston to valve clearance' 14
Chapter 2: Choosing the right
amount of duration 16
270 Degrees of duration 17
280 Degrees of duration 17
290 Degrees of duration 17
300 Degrees of duration 18
310 Degrees, or more, of
duration 18
Camshaft duration and
rpm ranges 19
Pushrod overhead valve engines 19
Single overhead camshaft engines 21
Two valve twin overhead camshaft
engines 21
Four valve twin overhead camshaft
engines 21
Chapter 3: Checking camshafts 22
Camshaft straightness 24
Camshaft journal condition 25
Lobe accuracy 25
Chapter 4: Camshaft timing
principles 27
Checking TDC 28
Marking the crankshaft damper/
pulley 29
Camshaft timing check using the
full lift position 31
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Chapter 5: Camshaft problems 34
Engineering tolerances. 34
Camshaft specifications 34
Lobe Phasing 35
Re-ground camshafts 35
Lack of power (camshaft at fault?) 37
Chapter 6: Timing procedure
- cam-in-block engines 38
Checking for full lift using the lifter 39
Finding 'true' top dead centre 39
Checking full lift via lifter
movement 40
Checking full lift via rocker
arm/valve retainer movement 43
Chapter 7: Camshaft timing
procedure - S.O.H.C. engines 45
Chapter 8: Camshaft timing
procedure - T.O.H.C. engines 48
Two valve per cylinder engines 48
Four valve per cylinder engines 48
Chapter 9: Engine testing 56
Rolling road 56
Track/road testing 57
Drag strip 58
Engine dyno 58
Complementary SpeedPro books 59
Index 64 |
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| | Independent Reviews Review from Retro Car magazine, December 2005
"As usual with these full colour books, they're full of very useful tips, stats, tables and images. They're also easy to read and well laid out." |
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