Engine Tuning Workshop Course Outline

I. ENGINE TUNING BASICS

1. The Four-Stroke Cycle
2. Engine Revs vs Engine Cycles
3. Volumetric Efficiency
4. What are Standard Conditions?
5. What are “Absolute” Conditions?
6. What is Air Density?
7. What is Air Flow (Volume vs Mass)?
8. KPA/BAR vs InHg/PSI
9. Brake Specific Fuel Consumption
10. Brake Specific Air Consumption
11. What is Air/Fuel Ratio?
12. What is Lambda?

II. WAVE FORMS

1. Sine Wave
2. Square Wave
3. Amplitude
4. Frequency
5. Pulse Width
6. Duty Cycle
7. Output Control

III. EFI SYSTEM COMPONENTS

A. Sensors
1. Map Sensor
2. Throttle Position Sensor
3. Coolant Temperature Sensor
4. Intake Air Temperature Sensor
5. Engine Speed Camshaft Position Sensor
6. Knock Sensor
7. Oxygen Sensor

B. Actuators
1. Ignition Outputs
2. Fan Relays
3. Air Conditioning Relays
4. Injectors
5. Choosing an Injector
C. Control Tables
1. Base Fuel
2. Base Ignition
3. Boost Control
4. Idle Control

IV. HOW DOES IT ALL WORK?

1. PV = NrT
2. Calculating Injector Pulse Width

V. TUNING THE ENGINE

1. What Air/Fuel Ratio Does My Engine Want?
2. Understanding Ignition Timing
3. Cold Starting
4. Fuel Requirements
5. Ignition Requirements
6. Dyno Tuning
7. Road Tuning

VI. TOOLS OF THE TRADE

1. DVOM
2. Test Light
3. Powered Test Light
4. Vacuum Pump
5. Fuel Pressure Gauge
6. Oscilloscope
7. Dynomometer
8. Air/Fuel Ratio Monitor

VII. TUNING PROCESS: START TO FINISH

1. Fuel Type
2. Compression Ratio
3. Induction Type
4. Set Fuel Pressure
5. Getting Started and Running
6. Set Mechanical Base Timing
7. Tune engine to idle properly after Warm-up
8. Tune No-Load RPM sites
9. Tune No-Load acceleration enrichment
10. Tune light load RPM sites
11. Tune medium to heavy load RPM sites
12. Tune Full load RPM sites
13. Review Data Logs and Power Graphs
14. Make final changes
15. Street or Track tuning and testing

VIII. FUN FORMULAS

1. Horsepower and Torque
2. Horsepower
3. Volumetric Efficiency
4. Cubic Inch Displacements
5. Rev Limits
6. Fuel Injectors