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Direct fuel injection (DFI) 911 Carrera

Porsche 911 Carrera - Direct fuel injection (DFI)

Direct fuel injection (DFI)

DFI delivers fuel directly into the combustion chamber with millisecond precision. The spray and cone angles of the multi-hole injectors have been optimised for torque, power output, fuel consumption, emissions and efficient combustion.

With direct injection, the engine management system regulates injection timing individually for each cylinder as well as the injection rate for each cylinder bank. This improves the combustion process and fuel economy.

For faster heating of the catalytic converters after a cold start and optimum torque in the upper load range, up to three injection pulses take place per combustion cycle.

DFI improves the internal cooling of the combustion chamber by having the mixture prepared directly in the cylinder. This allows for a higher compression ratio, which helps to deliver more output at the same time as enhanced engine efficiency. Injection is regulated by the electronic engine management system and emissions are monitored by the Lambda sensors.

Porsche Direct fuel injection (DFI) - Identity 911

Identity 911

Porsche Direct fuel injection (DFI) - Engineering 911

Engineering 911

Porsche Direct fuel injection (DFI) - Exterior design

Exterior design

Porsche Direct fuel injection (DFI) - Interior design

Interior design

Porsche Direct fuel injection (DFI) - Character

Character

Porsche Direct fuel injection (DFI) - Engines

Engines

Porsche Direct fuel injection (DFI) - Efficiency-enhancing measures

Efficiency-enhancing measures

Porsche Direct fuel injection (DFI) - Coasting

Coasting

Porsche Direct fuel injection (DFI) - 7-speed manual gearbox

7-speed manual gearbox

Porsche Direct fuel injection (DFI) - Porsche Doppelkupplung (PDK)

Porsche Doppelkupplung (PDK)

Porsche Direct fuel injection (DFI) - Exhaust system

Exhaust system

Porsche Direct fuel injection (DFI) - Air intake system

Air intake system

Porsche Direct fuel injection (DFI) - Direct fuel injection (DFI)

Direct fuel injection (DFI)

Porsche Direct fuel injection (DFI) - VarioCam Plus System

VarioCam Plus System

Porsche Direct fuel injection (DFI) - Integrated dry-sump lubrication

Integrated dry-sump lubrication

Porsche Direct fuel injection (DFI) - Steering

Steering

Porsche Direct fuel injection (DFI) - Sport Chrono Package

Sport Chrono Package

Porsche Direct fuel injection (DFI) - Dynamic engine mounts

Dynamic engine mounts

Porsche Direct fuel injection (DFI) - Porsche Torque Vectoring Plus (PTV Plus)

Porsche Torque Vectoring Plus (PTV Plus)

Porsche Direct fuel injection (DFI) - Porsche Active Suspension Management (PASM)

Porsche Active Suspension Management (PASM)

Porsche Direct fuel injection (DFI) - Porsche Dynamic Chassis Control (PDCC)

Porsche Dynamic Chassis Control (PDCC)

Porsche Direct fuel injection (DFI) - Wheels + TPM

Wheels + TPM

Porsche Direct fuel injection (DFI) - Front and rear axles

Front and rear axles

Porsche Direct fuel injection (DFI) - Brakes

Brakes

Porsche Direct fuel injection (DFI) - Porsche Ceramic Composite Brake (PCCB)

Porsche Ceramic Composite Brake (PCCB)

Porsche Direct fuel injection (DFI) - Lights

Lights

Porsche Direct fuel injection (DFI) - Porsche Stability Management (PSM)

Porsche Stability Management (PSM)

Porsche Direct fuel injection (DFI) - Airbags

Airbags

Porsche Direct fuel injection (DFI) - Engineered design

Engineered design

Porsche Direct fuel injection (DFI) - Anti-theft protection

Anti-theft protection

Porsche Direct fuel injection (DFI) - Interior

Interior

Porsche Direct fuel injection (DFI) - Steering wheels

Steering wheels

Porsche Direct fuel injection (DFI) - Instruments

Instruments

Porsche Direct fuel injection (DFI) - Seats

Seats

Porsche Direct fuel injection (DFI) - Adaptive cruise control with Porsche Active Safe (PAS)

Adaptive cruise control with Porsche Active Safe (PAS)

Porsche Direct fuel injection (DFI) - Slide/tilt sunroof

Slide/tilt sunroof

Porsche Direct fuel injection (DFI) - Additional Features

Additional Features

Porsche Direct fuel injection (DFI) - Transport

Transport

Porsche Direct fuel injection (DFI) - Porsche Communication Management (PCM)

Porsche Communication Management (PCM)

Porsche Direct fuel injection (DFI) - Burmester® High-End Surround Sound System

Burmester® High-End Surround Sound System

Porsche Direct fuel injection (DFI) - BOSE® Surround Sound System

BOSE® Surround Sound System

Porsche Direct fuel injection (DFI) - Mobile phone / Bluetooth® connection

Mobile phone / Bluetooth® connection

Porsche Direct fuel injection (DFI) - Online services

Online services

Porsche Direct fuel injection (DFI) - Exhaust emission control

Exhaust emission control

Porsche Direct fuel injection (DFI) - Fuel economy and recycling

Fuel economy and recycling

Porsche Direct fuel injection (DFI) - Fuel

Fuel