The Mazda RT24-P has been given a weight increase ahead of this weekend’s IMSA WeatherTech SportsCar Championship round at Road America.
It is among several Balance of Performance adjustments confirmed by IMSA last week in advance of Sunday’s two-hour and 40-minute race.
The Multimatic-built and run Mazda DPi will be 10 kg heavier than it was last time out at Watkins Glen International.
It comes after the Mazda was given a slight increase in power ahead of the Sahlen’s Six hours of The Glen, where where Harry Tincknell, Oliver Jarvis and Jonathan Bomarito were victorious.
No other changes have been made to the DPi class although there have been several adjustments in GT Daytona.
It includes a 10 kg minimum weight increase for the Lexus RC F GT3 and a power reduction for the class championship-leading Aston Martin Vantage GT3.
The Aston has lost roughly 6.7 horsepower following a reduction in turbo boost across all RPM levels.
Ross Gunn and Roman De Angelis took over the class points lead with their win in the most recent GTD round at Lime Rock Park in their The Heart of Racing Aston Martin.
Additionally, the Aston loses 1 liter of fuel capacity, while both the Audi R8 LMS GT3 Evo and BMW M6 GT3 face a two-liter reduction.