Mazdas Retain Speed in Rolex 24 BoP


The Mazda RT24-P duo that dominated the Roar Before the Rolex 24 test earlier this month has largely avoided a major Balance of Performance setback entering the Rolex 24 at Daytona.

During the Roar’s qualifying outing to determine pit and garage locations for the season-opening race, the Nos. 77 and 55 Mazda DPis were an astounding 0.863 and 0.838 seconds faster than their closest competition, which came from Ricky Taylor’s top lap in the No. 7 Acura ARX-05.

Despite the massive gap, a 2-liter reduction in fuel tank capacity and the requirement to utilize their cars’ high-downforce rear wing settings are the only BoP adjustments issued to Mazda Team Joest by IMSA ahead of the twice-around-the-clock event.

Team Penske’s Acura DPi cars will undergo the same fuel tank update as the Mazdas while the six Cadillac DPi-V.Rs in the Rolex 24 field face a 1-liter reduction. Beyond avoiding a reduction in fuel capacity like the three other DPi cars, the Nissan Onroak DPi has had its lambda increased by one hundredth to 0.85.

In GT Le Mans, the BMW M8 GTE will take the first green flag of the 2019 IMSA WeatherTech SportsCar Championship season with a 2-liter larger fuel tank, raising its total capacity to 90 L. Only the Ferrari 488 GTE and Ford GT have smaller tanks at 87 and 88 L.

The Acura NSX GT3 has lost 3 L of fuel while the GT3 contenders from Lamborghini and Porsche have gained 2 and 3 L, respectively. A 15-kilogram minimum weight decrease for the BMW M6 GT3 and 1-millimeter larger engine restrictor for the Lamborghini Huracan GT3 round out the BoP alterations in GT Daytona.

This round of BoP changes will be in effect when Rolex 24 practice begins Thursday, Jan. 24, 2019. The race itself will begin Saturday, Jan. 26.

Aaron Durant
Aaron Durant
Aaron brings a developing design and editorial vision to The Apex every day and co-hosts The Braking Point podcast every week. As editor-in-chief and an avid reader, Aaron enjoys aligning his relentless care for quality with an interest in counterintuitive approaches.

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