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._x000B_Also explained are all aspects of camshaft design and the importance of lobe phasing, duration & lift._x000B_Applies to all 4-stroke car-type engines with 4, 5, 6 or 8 cylinders._x000B_Avoids wasting money on modifications that don't work._x000B_Applies to road and track applications._x000B_In the 1990s there has been a huge resurgence of interest in modifying cars and motor cycles for higher performance.
Reihe
Sprache
Verlagsort
Verlagsgruppe
Maße
Höhe: 250 mm
Breite: 207 mm
Dicke: 9 mm
Gewicht
ISBN-13
978-1-903706-59-6 (9781903706596)
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Schweitzer Klassifikation
Hailing originally from New Zealand, Des Hammill is a professional engineer with many years of practical experience of building race-winning engines and solving technical problems. The author of several books in the SpeedPro series, Des writes in an easy to understand manner and gives step-by-step guidance. Des also takes his own photographs and creates his own line drawings.
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 -------------------------------------------------------------------------------- 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
