The 2012 Daytona 500 was the beginning of a new era in NASCAR Sprint Cup Series™ racing.
For the first time in the more than 60 years—since the sport's inception, in fact—every NASCAR Sprint Cup Series car roared onto Daytona International Speedway with 860 horsepower of fuel-injected muscle under the hood.
As a replacement for the long-trusted carburetor, electronic fuel injection benefits fans and the environment. It significantly reduces burn of excess fuel and limits the harmful emissions that come along with it.
Our MCU inside the McLaren ECU processes data from all over the engine at 1,000 times per second, calculating and directing the precise amount of fuel to be delivered to the engine's manifold. This results in cleaner running engines, improved efficiency and performance.Learn how we're making NASCAR engines cleaner and more efficient >
The partners and technologies behind the Sprint Cup Series switch are here in this at-a-glance guide.
The Freescale "Wide Open" Award
Data pulled from the Freescale-McLaren ECU post-race delivers information, such as engine temperature and throttle position for a lap-by-lap analysis by the Sprint Cup teams about their race engine's performance.
Every race weekend, with some help from NASCAR to determine the winner, we present a check to the previous race's Freescale Wide Open Award winner.
Choosing from the top-five finishers of a NASCAR Sprint Cup Series™, the award goes to the driver with the throttle in the wide open position for the longest amount of time, measured during the final 20% of the race.Fuel-injection Basics - Ten things all NASCAR fans should know >
Why the Sprint Cup Series switched to fuel injection.