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Published on February 11th, 2011 | by Michael J Smith


NASCAR To Switch To Fuel Injection In 2012

NASCAR will switch to fuel injection in the Sprint Cup Series in 2012, the sanctioning body announced today.

Fuel injection systems will be tested throughout the year, and should be ready by then. NASCAR had hoped that fuel injection systems would be ready this year

Under a new technology partnership, Britain’s McLaren Electric Systems will provide engine controller systems and Freescale Semiconductor, Inc. will provide processors.

McLaren builds eletronic control systems for motorsports applications. They have sold controllers to teams in Formula 1, World Rally Cup, IndyCar, MotoGP. Freescale makes automotive microcontrollers.

NASCAR currently uses carburetors in its engines. Carburetors mix fuel and air in the engine, and they are relatively simple and inexpensive. Fuel injection, however, offers better fuel efficiency and lower emissions, making them more appealing in today’s emissions-conscious world.

In fuel injection, oxygen sensors detect the amount of oxygen in the exhaust system and the engine control unit adjusts the air-to-fuel ratio in real-time. points out:

ECUs maximize each racing team’s ability to get the most performance and best fuel economy under all race conditions. With this announcement, plans call for every Cup Series race team to use a control system with Freescale’s advanced 32-bit Power Architecture based engine management processors at its core, beginning in 2012. … The ECUs are tamper-proof, ensuring that only approved software may ever be run during a race weekend. Additionally, NASCAR will have special electronic tools at its disposal during every event to ensure the legality of all ECUs.

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About the Author

Michael J. Smith is a NASCAR enthusiast and blogger. In addition to founding this website, Michael is a journalist with over a decade of experience writing for prestigious media organizations.

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