Corvette, BMW Adjusted in GT Le Mans

BoP adjustments have been made for the first time since Long Beach in GT Le Mans, most notably with a power increase to the Corvette C7.R.

The Pratt & Miller-built car will now have a 0.9mm larger air restrictor, bringing it to the same 31.5mm (x2) size as the Porsche 911 RSR.

BMW’s M8 GTE, meanwhile, faces a slightly reduced turbo boost for CTMP, despite struggling for pace at Watkins Glen.

Both the Audi R8 LMS and Porsche 911 GT3 R will have larger air restrictors in GT Daytona, with the Porsche having been given a 3mm increase, with a 1mm larger opening for the Audi.

While IMSA is typically required to publish BoP changes at least seven days prior to the start of each event, allowances have been given for CTMP, which falls the week after Watkins Glen.

“IMSA Technical Committee performed it’s standard post event data analysis for both the IMSA WeatherTech SportsCar Championship and the IMSA Continental Tire SportsCar Challenge,” a statement from the series read.

“After careful consideration, and in advance of this week’s Mobil 1 SportsCar Grand Prix at Canadian Tire Motorsport Park, IMSA will issue an updated Balance of Performance Table as permitted by IMSA 2018 Sporting Regulation attachment 2.4.5.”