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WeatherTech Championship

IMSA Sets Starting BoP Ahead of Sebring

Balance of Performance established ahead of first ‘regular’ race of season at Sebring…

Photo: Mike Levitt/IMSA

IMSA has established the starting Balance of Performance for the remainder of the WeatherTech SportsCar Championship season ahead of next weekend’s Mobil 1 Twelve Hours of Sebring.

Released on Wednesday, the tables are reflective of changes since last year’s season-ending Motul Petit Le Mans, with the Rolex 24 at Daytona having its own unique BoP.

No performance-related changes have been made to the DPi ranks since the ten-hour enduro at Michelin Raceway Road Atlanta, with all of the changes in the common GTD Pro/GTD BoP.

The Acura NSX GT3 Evo22 has been given a 20 kg weight break and increased turbo boost at lower RPMs compared to its previous Evo configuration while the BMW M4 GT3 and Chevrolet Corvette C8.R GTD will each weigh in at 1315 kg and 1340 kg, respectively.

As was the case in the season-opening Rolex 24, the nationally homologated Corvette will run with a 15 mm gurney, along with a 41 mm air restrictor opening.

The Lexus RC F GT3 will have slightly more power with a 1 mm larger air restrictor, while the McLaren 720S GT3 has faced a slight boost reduction across all RPM levels.

Finally, the Mercedes-AMG GT3 Evo has been handed a 10 kg weight break compared to its configuration from last year’s season finale.

IMSA reserves the right to make BoP changes throughout the season although any adjustments during Sebring race week are unlikely.

John Dagys is the founder and Editor-in-Chief of Sportscar365. Dagys spent eight years as a motorsports correspondent for and SPEED Channel and has contributed to numerous other motorsports publications worldwide. Contact John

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