How a Racetrack "Stress Test" Redesigned the V8 in Customers’ Driveways

When a 5.0-liter Coyote V8 engine completes a grueling high-speed run under extreme heat and pressure, our engineering team doesn't just check the lap times. They prepare to take it apart.

This is just one example of how we bring crucial lessons from track testing to the vehicles our customers rely on every day, whether they are towing a trailer, running errands, or enjoying oceanside road trips.

To build world-class durability into our most legendary vehicles, teams embrace a proactive mindset: identifying a component's limits in a controlled environment is the ultimate success.

During these high-stress track sessions, engineers discovered an opportunity to further strengthen components like the camshaft drive to better perform under extreme conditions. They refined the design on the track and carried those improvements directly back into the production 5.0-liter Coyote V8 engine. 

A Team Sport

The goal: to break the powertrains, the essential system of engine and transmission that generates and delivers power to the wheels, and then make them better before the customers buy them.

"This requires us to look at failure differently. We now celebrate internal test failures," said Charles Poon, Ford vice president of Vehicle Hardware and Software Engineering, and the Powertrain Engineering team.

“The more issues we identify during testing, the lower the chance of our customers experiencing them.”

This development relies on the dedication of two distinct groups of Ford employees.

On one end, you have the Ford Racing engineers and pit crews, working day and night, analyzing real-time telemetry data as engines endure hours of wide-open throttle, extreme heat, and punishing vibrations.

On the other end, you have Ford Product Development engineers who collaborate with the racing teams to deliver improved designs for issues found in the data analysis. 

The Precision of the Teardown

Engines pushed to their absolute limits on the track and in the lab are sent back to facilities like the Essex Engine Plant, where dedicated mechanics tear them down daily to hunt for weaknesses.

Those weaknesses get turned into opportunities for product improvements, not just fixes — like the camshaft drive upgrade. 

Without racing, it’s possible that Ford wouldn’t have developed this feature for retail customers. Now, customers who tow a heavy load to a job site in an F-150 truck, cruise the highway in a Mustang GT coupe, or chase lap times in a Mustang Dark Horse sports car will experience the benefits.

“Ultimately, testing is not simply about 'finding new defects' — it is about validating our engineering,” Poon said.

“When a failure does occur, our goal is to predict exactly what will fail and when. That level of predictability is how we prove our engineering models truly align with real-world conditions.” 

And like the goal for all of the Ford powertrains, the hunt for additional opportunities to improve engines and transmissions keeps rolling along, too.