New Short Track/Road Course package for 2024
For the second year in a row, NASCAR has implemented a new aerodynamic rule package for the Cup Series, targeting road courses and most short tracks approximately one mile in length. On Wednesday, NASCAR confirmed that Cup teams have been informed through a rulebook bulletin about the modifications to the Next Gen car, applicable to all road courses and most oval tracks of 1.058 miles or less.
The updates to the Cup cars include running a simplified diffuser and several other modifications. This decision was influenced by driver feedback during a test session run at Phoenix Raceway in early December. The key components of the changes are as follows:
- 2023 short track/road course splitter stuffers
- Elimination of engine panel strakes
- A 3-inch spoiler
- Simplified diffuser strakes
It’s noted that the simplified diffuser will not be in use at the Los Angeles Memorial Coliseum for the preseason Busch Light Clash, a non-points event.
Eric Jacuzzi, NASCAR’s Vice President of Vehicle Performance, observed notable improvements in traffic during the test. He mentioned that the car maintained rear downforce even when yawing, a challenge with the current design. He explained that the drivers would find it easier to maneuver on short tracks with less concern about power application.
Jacuzzi further noted that the drivers recognized the car as more forgiving during the test, allowing for more controlled sliding.
The debut of this new package will be on March 10 at Phoenix, marking the first race where these changes will be in effect.
NASCAR also stated that, despite testing the elimination stage breaks for select road course races in 2023, the caution breaks will return for all road course events in 2024.
Photo by Jett White, taken at Watkins Glen International
