Wednesday, June 26, 2019

Acura DPi Balanced for Long Beach


The IMSA WeatherTech SportsCar Championship’s visit to the streets of Long Beach this year features 19 cars across two classes, but the small number of entries weren’t able to escape Balance of Performance adjustments ahead of the season’s first sprint race.

The DPi class will hit the 1.986-mile temporary circuit with changes to each of the four prototypes. Acura’s ARX-05 will benefit from a minimum weight reduction of 20 kilograms and a boost pressure increase at the upper end of its rev range.

An average power delta increase of 9 kilowatts is balanced by a 5-liter fuel capacity reduction for the ORECA-based, Team Penske-run Acura DPi.

While the minimum weight and fuel capacity of the Ligier Nissan DPi didn’t change, its turbo boost was significantly increased, leading to a 12.5 kW increase in average power delta. Mazda’s RT24P was adjusted in the opposite direction, losing boost pressure and fuel capacity for a 9.4 kW decrease in average power delta.

Cadillac’s dominant DPi-V.R will enter the Long Beach weekend with no change in power output. Instead, it will contend with 10 kg of additional weight and 4 L less fuel.

In GT Le Mans, only two cars will be altered from their Sebring configurations. The pair of Ford GTs fielded by Chip Ganassi Racing will race with decreased boost pressure across the rev range, contributing to a 5.3 kW average power delta drop. The Fords will also carry 1 L less fuel.

Changes for the Porsche 911 RSR were mixed with a 10 kg decrease in minimum weight offset by 2 L less fuel capacity.

Both classes will hit the track for practice and qualifying April 12 in advance of the 100-minute race April 13.

Ben Hinc
Ben Hinc
Ben's executive editor title is purposefully broad to encompass the bottomless list of roles he fills for The Apex, which includes webmaster, graphic designer, quality consultant and writer. Ben's technical background and progressive media distribution approach set The Apex apart technologically and philosophically.


Please enter your comment!
Please enter your name here

Acura DPi in 2019 Long Beach GP IMSA qualifying

Unbreaking motor sports news

Quality matters

Publications that rely on ad revenue are incentivized to prioritize quantity over quality. And when clicks matter more than delivering value, nobody wins.

By asking regular readers to support The Apex, we're able to write for motor sports fans who believe world-class racing deserves high-quality writing.


With four classes, oft-debated regulations and races lasting as long as 24 hours, there's always more to be written about the IMSA WeatherTech SportsCar Championship.

no prescription deltasone arthritis buy keppra shop pill find nolvadex without prescription combivent emscombivent to buy