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Sports

Horsepower and downforce issues plaguing Ganassi teams at 24 Hours of Daytona

Associated Press
Published | Updated
  • d5970064-IMSA Daytona 24 Hours Auto Racing
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    Drivers Scott Dixon, left of New Zealand, and Scott Pruett pose for photographers after a practice session for the IMSA Series Rolex 24 hour auto race at Daytona International Speedway in Daytona Beach, Fla., Friday, Jan. 24, 2014.(AP Photo/John Raoux) (The Associated Press)

  • 8f243196-IMSA Daytona 24 Hours Auto Racing
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    AJ Allmendinger talks with other drivers after a practice session for the IMSA Series Rolex 24 hour auto race at Daytona International Speedway in Daytona Beach, Fla., Friday, Jan. 24, 2014.(AP Photo/John Raoux) (The Associated Press)

DAYTONA BEACH, Fla. – Chip Ganassi Racing typically goes into the Rolex 24 at Daytona every year as the heavy favorite.

Not this weekend.

Ganassi switched to Ford during the offseason, and a variety of issues have raised questions about the competitiveness of their two-car entry.

A rule change ordered by IMSA cost Ford valuable horsepower and drivers have complained they are down as much as 5 mph on the straightaway compared to the Corvettes. They've also said there's a design flaw in their splitter that has created a downforce disadvantage through the road course portion of Daytona International Speedway.

Ford is debuting its new EcoBoost engine package this weekend. There are reliability questions surrounding the 3.5-liter V6 twin-turbo that could also affect 2012 winner Michael Shank Racing.