Mitsubishi's 4G63t engine is among the most powerful engines ever in the sport-compact world. It's not uncommon to find one of these four-cylinder, iron-block, aluminum-headed, 2-liter turbocharged monsters making more than 1,000 horsepower with the right modifications and tuning - well above the 200-300 hp produced in the factory-made engines. Bolted into such cars as the Mitsubishi Lancer Evolution, Eclipse, and Galant, and the Eagle Talon and Plymouth Laser, the 4G63t has more than a cult following among sport-compact enthusiasts, who know and respect this engine's immense performance potential at the track or on the street.
Up until now, in-depth performance information on the 4G63t has been hard to find. For this book, author Robert Bowen went straight to the source, Robert Garcia of Road/Race Engineering in Santa Fe Springs, California. RRE is the most well-known and respected Mitsubishi turbo performance shop in the United States, and Garcia is its in-house engine builder. Mitsubishi enthusiasts will benefit from Garcia's expertise and be able to build better, stronger engines than ever before.
TABLE OF CONTENTS:
Author Bios
Foreword
Acknowledgments
Introduction
Chapter 1: Introduction to the 4G63t
- Sirius Engines
- The 4G63t in the USA
- The Lancer Evolution
- The Evo in America
- Finding and Buying a Turbocharged Mitsubishi
- Engine Swaps
- Buying a Core Engine
- Maintenance
- Power Goals and Budgeting
- Other Factors
- Paper Engine Building
Chapter 2: Basic Bolt-On Modifications
- Expectations
- Staged Tuning
- Gauges and Instruments
- DSM versus Evo Bolt-Ons
- Air Filter or Air Intake
- Exhaust
- More Boost
- Tuning or Chipping
- Other Parts
Chapter 3: Turbocharging and Intercooling
- Volumetric Efficiency
- Enter the Turbo
- Turbo Theory
- Compressor Efficiency
- Turbine Efficiency
- Turbo Lubrication and Cooling
- Ball- Vs. Sleeve-Bearing Turbos
- Wastegates
- Better Boost Control
- Intercooling Theory
- Intercooler Construction
- Intercooler Spray
- Chemical Intercooling
- Bypass Valves and Blow-Off Valves
- Stock Turbos and Intercoolers
- Stock Turbo Manifolds
- Turbo Swaps
- Turbo Swap Collateral Damage
- Intercooler Upgrades
Chapter 4: Intake and Exhaust: Making the Turbo’s Life Easier
- Pre-Turbo Airflow
- Turbo/Intercooler/Intake Plumbing
- Throttle Body
- Intake Manifolds
- Insulating Spacers
- Exhaust Systems
- Exhaust Manifolds and Headers
- Manifold Swapping and Porting
- O2 Sensor Housing & Wastegate Plumbing
- Exhaust Heat Control
- Downpipes
- Exhaust System and Mufflers
- Emissions Equipment and Legality
Chapter 5: Fuel System
- Octane
- Fuel Injectors
- Fuel Pressure Regulators and Gauges
- Fuel Lines
- Fuel Pump Needs
- Fuel Pump Wiring
- Upgraded Pumps
Chapter 6: Engine Management and Tuning
- Stock ECU Sensors
- Limits of the Stock ECU
- Why Tune the ECU?
- Hacking the MAS and MAS Swapping
- Piggybacks and Airflow Computers
- MAF Translator
- Blow-Through MAF
- Advanced ECU Fooling (Speed Density)
- Reprogramming the Stock ECU
- Standalone Engine Management
- Building Your Own ECU
- Choosing an Engine Management System
- ECU Tuning and Emissions
- Ignition System
- Ignition Modifications
- Tuning Basics
Chapter 7: Cylinder Heads, Camshafts and Valvetrain
- Head Swapping
- Head Gaskets
- Head Bolts and Studs
- Port Flow
- Combustion Chamber
- Valvetrain
- Camshafts
- Cam Drive
Chapter 8: The Bottom End
- Stock 4G63t Bottom Ends
- Machining a Block
- Oiling System
- Pistons, Pins and Rings
- Compression Ratio
- Connecting Rods
- Crankshafts
- Engine Bearings
- Crank Walk
Source Guide
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