The battle for the IMSA WeatherTech SportsCar Championship took an unexpected turn after a post-race penalty for the No. 6 Porsche Penske Motorsport 963 following the TireRack.com Battle on the Bricks at Indianapolis. The penalty, which stripped the car of its third-place finish, came as a result of a “procedural issue” involving unauthorized modifications to the vehicle’s wiring harness—a development that could shift the dynamics heading into the season’s final showdown at Motul Petit Le Mans.
IMSA’s in-depth inspection revealed modifications to the wiring loom that did not align with homologation procedures. Specifically, the issue was with a right-hand sidepod wiring loom that powers the leader light panel and transponder on the car. While these changes did not seem to provide any competitive advantage, the violation was enough for IMSA to penalize the car, moving it to the back of the GTP field. This penalty significantly widened the points gap between the No. 6 car of Mathieu Jaminet and Nick Tandy and their No. 7 teammates, Dane Cameron and Felipe Nasr.
Porsche Penske Motorsport team manager Jonathan Diuguid explained that the rule violation stemmed from an update to address Controller Area Network (CAN) errors the team had been dealing with throughout 2023 and early 2024. He emphasized that while the wiring loom change fixed those issues, the team did not follow the proper homologation procedure for the update, which led to the infraction.
“Ultimately, the outcome was that IMSA found a homologation procedure hadn’t been followed,” Diuguid said. “The regulations are clear, and while it was disappointing, we fully respect IMSA’s role in enforcing the rules.”
The impact of the penalty has drastically altered the points standings. Heading into the final race of the season at Road Atlanta, Cameron and Nasr hold a 124-point lead over their teammates Tandy and Jaminet. The No. 01 Cadillac Racing V-Series.R team of Renger van der Zande and Sebastien Bourdais is now just 40 points behind the No. 6, with a real shot at overtaking them for second in the overall standings.
Diuguid acknowledged that the penalty doesn’t change the team’s overall strategy too much, given the No. 7 was already leading the championship, but it does offer new opportunities to aggressively pursue the IMSA Michelin Endurance Cup (IMEC). The team may take calculated risks in terms of race strategy, such as staying out longer during key race intervals to capture valuable endurance points, even at the expense of the No. 6’s final race position.
“We’ll definitely try to capture every single championship that’s possible,” Diuguid stated. “That’s our goal.”
As Petit Le Mans approaches, the ripple effects of the penalty will be felt throughout the grid. With the championship fight narrowing, strategies will be paramount, and the season finale promises high drama as the top teams battle for every last point. Porsche Penske Motorsport will be under intense scrutiny as they attempt to secure both the overall championship and the Endurance Cup, making the stakes even higher for the highly anticipated showdown at Road Atlanta.
