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Freescale Racing


Freescale Racing

As a leader in the automotive industry, it's only natural that Freescale delivers the high-performance processing technology behind automotive racing worldwide. We design and manufacture embedded processing solutions that enable advances in engine management, chassis control, body electronics, safety and infotainment. Built upon decades of innovation, our broad portfolio of products delivers proven reliability for millions of passenger cars worldwide and leading-edge performance and potential for the high-performance racing environments that require it.

We're proud to be an official technology partner to McLaren Electronics, a recognized world leader in motorsports. McLaren's battle-tested engine management solutions deliver fuel injection and ignition control to Formula One™, IndyCar®, among others. In 2011, McLaren and Freescale partnered to help NASCAR® move its entire NASCAR Sprint Cup Series™ lineup from carbureted to fuel-injected engines. As exclusive suppliers to NASCAR, Freescale is the Official Automotive Semiconductor of NASCAR. Likewise, McLaren Electronics is the Official Engine Control Unit of NASCAR.

Freescale's leadership extends beyond the automotive industry. Formerly a division of Motorola, our more than 60 year history includes embedded processing technologies for the consumer, networking and industrial markets. If you've driven a car, surfed the Internet, read an e-book or operated a washing machine, you're likely to have used Freescale technology to do it. Since 1963, we have shipped more than 18 billion products and more than four billion to the automotive industry since 1996. We're a global company with 20,000 employees in the Americas, Europe, China and Japan.

History of Innovation

Our History of Innovation

Freescale has a long history of technology breakthroughs and has developed some of the most world changing inventions. From transmitting the first words from the moon to the sensors for life saving airbags, take a timeline tour to learn more about Freescale's innovations.

Explore our history of technology breakthroughs

Robust Power Architecture® MCU

It might surprise you to learn that a device no larger than a fingernail can enable 900 horsepower at 9,000 RPM. Freescale's robust Power Architecture® MCU acts as the "brain" of the McLaren-built engine control unit (ECU). Variations of McLaren's ECU are used extensively across Formula One™, NASCAR®, World Rally Car, IRL, MotoGP™, Le Mans and other professional motorsports categories.

Within the McLaren TAG-400N ECU for NASCAR Sprint Cup Series™ cars, Freescale's microcontroller evaluates data from sensors all over the engine, then determines the precise amount of fuel to be delivered to the engine's manifold—all at a startling 1,000 times per second. This results in the same hard-charging racing NASCAR fans are accustomed to but without the excess fuel burn. It's in part how NASCAR is putting the “stock” back in stock car. In other words, the same technology that helps generate 900HP on race day is the very same technology bringing millions of race fans to the track each year.

Freescale continues to advance automotive engineering with its latest Qorivva MCUs.

McLaren TAG-400N Engine Control Unit

McLaren TAG-400N Engine Control Unit

Designed specifically for NASCAR Sprint Cup Series cars, the McLaren TAG-400N controls eight-cylinder race engines with Freescale Power Architecture MCUs at its core. A variant of the TAG-400 has been used by the Indy Racing League (IRL) since 2007, proof of the ECU's proven security and reliability.

The TAG-400N provides the following key functions:

  • Control of a V8 normal-aspirated engine—fuelling and ignition over full engine operating range.
  • Absolute security against illegal software or tampering using “box-locking” methods developed and fine-tuned over 15 years in Formula One.
  • Secure NASCAR application inside the unit for enhanced scrutineering, marshalling and performance monitoring.
  • On-board data logging of prescribed primary parameters for NASCAR.

Roush Yates Engines FR9

Roush Yates Engines FR9

In late 2011, Freescale partnered with NASCAR Ford engine builder, Roush Yates Engines, to promote the use of technology in NASCAR and other high-performance racing series. The following specifications of the Roush Yates NASCAR Sprint Cup Series™ FR9 offer a glimpse into the incredible engineering and performance Freescale technology is trusted to support.

  • 358 cid (5.87L)
  • 4.175” Bore
  • 3.260” Stroke
  • 900 HP at 9000 RPM
  • 560 TQ at 7200 RPM
  • 9800 RPM Max
  • 12.0:1 Compression Ratio
  • Compacted Graphite Iron Block

Freescale and McLaren Electronics

Freescale is proud to be the Official Technology Partner of McLaren Electronics, the world leader in control electronics for the professional motorsports industry. Freescale's Power Architecture® microcontrollers (MCUs) make their way into McLaren Electronics' high-performance engine control units (ECUs), which are used extensively across the world's premier auto racing series.

McLaren Electronics is the Official Electronic Control Unit Supplier to the FIA Formula One World Championship, the sole ECU supplier to Indy Car, and the Official ECU Supplier to NASCAR®. These world-class electronic control systems are capable of controlling the engine, gearbox and chassis of a modern race car, as well as providing data logging and telemetry capability. McLaren Electronics is unique in also offering a complete range of rugged, high-performance sensors to complement the broader system capability. In addition to these on-car systems, McLaren Electronics provides real-time telemetry and data analysis across all Formula One race teams.

A new era in NASCAR Sprint Cup Series™ racing

This year's 54th running of the Daytona 500 marked 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, significantly reducing burn of excess fuel and limiting the harmful emissions that come along with it. Also important to NASCAR fans, fuel injection narrows the gap between Sprint Cup Series race cars and those that carry millions of fans to tracks all over the country each year.

The Freescale microcontroller (MCU) inside the McLaren engine control unit (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. Cleaner running engines, improved efficiency and performance. It's why we're proud to have been named the Official Automotive Semiconductor of NASCAR.

Learn how we're making NASCAR engines cleaner and more efficient (pdf)

The partners and technologies behind the Sprint Cup Series switch are here in this at-a-glance guide.

The Freescale "Wide Open" Award

The Freescale-McLaren engine control unit (ECU) delivers a wealth of information to Sprint Cup teams looking to get the most from their race engine's performance. Data pulled from the ECU post-race (no telemetry just yet due to NASCAR rules) offers an abundance of lap-by-lap insight into things like engine temperature, throttle position and much more.

Every race weekend during the 2012 season, with a little help from NASCAR to determine the winner, we'll 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 percent of the race. Follow us at @FreescaleRacing for weekly results.


NASCAR - Extreme Measures
(00:33 min) Top NASCAR drivers go to "extreme measures" to illustrate fuel saving tips.
Fuel-injection Basics (pdf)

Ten things all NASCAR fans should know about the Sprint Cup Series switch to fuel injection, along with carbureted and fuel-injected engine illustrations.

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