IndyCar Engine Specifications

IndyCar engines are some of the most powerful and technologically advanced engines in the world. They are designed to produce maximum power and efficiency while being reliable enough to withstand the rigors of racing.

Engine Configuration

• V6, twin-turbocharged
• Displacement: 2.2 liters
• Bore: 93.0 mm
• Stroke: 63.5 mm
• Compression ratio: 11.5:1

Power and Torque

• Maximum power: 700 horsepower (522 kW) at 10,500 rpm
• Maximum torque: 500 lb-ft (678 Nm) at 9,000 rpm

Fuel System

• Direct injection
• Fuel pressure: 1,500 psi (103 bar)
• Fuel type: Ethanol

Ignition System

• Capacitive discharge ignition
• Spark plug gap: 0.040 inches (1.0 mm)

Lubrication System

• Dry sump
• Oil capacity: 10 quarts (9.5 liters)
• Oil pressure: 90 psi (6.2 bar) at 10,000 rpm

Cooling System

• Water-cooled
• Coolant capacity: 12 quarts (11.4 liters)
• Coolant temperature: 190-210°F (88-99°C)

Exhaust System

• Twin-turbocharged
• Turbocharger boost pressure: 2.2 bar (32 psi)
• Exhaust temperature: 1,600°F (871°C)

Electronics

• Engine control unit (ECU)
• Data acquisition system
• Traction control system
• Anti-lock braking system

Reliability

• Engines must last for two race weekends (approximately 600 miles)
• Engines are inspected after each race weekend
• Engines are rebuilt after approximately 1,200 miles

Cost

• Approximately $1 million per engine