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The IndyCar Series is developing a new and tougher bellhousing to deploy in the coming months. After dealing with ongoing durability issues with the new and lighter magnesium bellhousings that debu…
The IndyCar Series is developing a new and tougher bellhousing to address durability issues with the current magnesium bellhousings. Together with Dallara, the series is creating thicker and stronger bellhousings to combat cracking in key areas. The timing for mass production and delivery of the updated units is pending confirmation due to the ongoing racing season. Once deployed, all cars will be equipped with the fortified bellhousings, possibly coinciding with the anticipated shift to hybrid powertrains in July. The original magnesium bellhousings were introduced for the 2024 season, replacing the previous aluminum versions. Design changes in the magnesium bellhousings aim to accommodate the energy recovery systems, requiring robustness improvements to withstand racing stresses. Ilmor Engineering will manage the service and distribution of the new bellhousings with pre-installed ERS units for all teams in the series.