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Ford DP Given Restrictor Break, Weight Added to BMW Z4 GT3

Ford-Riley, BMW Z4 GT3 receive BoP adjustments ahead of CTMP…

Photo: IMSA

Photo: IMSA

IMSA late Friday issued Balance of Performance adjustments ahead of next weekend’s Mobil 1 Sportscar Grand Prix at Canadian Tire Motorsport Park.

The Ford EcoBoost-powered Rileys have been given a 0.4 mm larger air restrictor for the upcoming TUDOR United SportsCar Championship round, as well as a to-be-announced change in turbo boost pressure.

No adjustments have been made to any other cars or engines in the Prototype class, which effectively leaves the much talked about P2/DP balance unchanged from the most recent round at Watkins Glen.

GT Daytona competitors are also left relatively unaltered, except for the BMW Z4 GT3, which has been given a 30 kg weight increase.

Additionally, the Aston Martin Vantage GT3 must now run the DP specification Crawford rear wing.

No changes have been released for GT Le Mans cars.

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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