IndyCar implements new spec fuel meter
At the behest of its engine suppliers, the IndyCar Series has implemented a new mandatory fuel flow meter for 2025 that must be carried within every Dallara DW12 chassis.
Made by Sentronics, whose Flowsonic fuel flow meters are found in Formula 1, IMSA, and the World Endurance Championship, the devices offer a newfound ability for Chevrolet and Honda to standardize fuel flow and consumption rates across all of their respective teams.
Prior to the adoption of the Flowsonic sensors, manufacturers would work closely with each IndyCar entry to measure the volumetric flow rates through the fuel injectors, but it was a laborious process that required constant calibrating and was rarely 100-percent accurate.
With the inclusion of the Flowsonic device, the constant fuel-rail/injector calibration is no longer required which should also remove any concerns about the accuracy of the fuel flow and consumption rates along with giving teams and manufacturers a real-time look at fuel burn rates they can trust while fashioning their pit stop and refueling strategies.
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