Why less power is actually better for NASCAR at superspeedways
Motorsport.com • • sports
Key Points:
- NASCAR announced a new rules package for the summer Daytona race that reduces engine horsepower from 510 to 465 by using a smaller tapered spacer, aiming to improve passing and reduce reliance on fuel saving strategies.
- The horsepower reduction allows NASCAR to decrease aerodynamic drag and downforce by shrinking the spoiler from 7 to 4 inches and adjusting underbody aero, replicating aero characteristics from previous generations of superspeedway cars.
- Changes also include a new drop gear ratio in the transaxle to help cars maintain peak power during single-car runs, enhancing their ability to complete passes outside the pack.
- These combined adjustments are designed to narrow the speed differential between pack racing and single-car runs, encouraging more aggressive racing and overtaking similar to recent exciting events.
- Fans initially concerned about reduced horsepower may be reassured by comparisons to the O’Reilly Series cars, which run around 410 horsepower in superspeedway configurations, indicating the new package balances performance and racing quality.
