Jack Roush discusses possible engine changes

With NASCAR officials focusing on engine changes in the Sprint Cup Series for 2015 that will result in a reduction of horsepower, such a move should involve "a restriction on the intake side," according to Sprint Cup Series team co-owner Jack Roush. Roush, an owner in the series since 1988, isn't suggesting the use of restrictor plates similar to those used at Daytona and Talladega. Instead, he said, a reduction of the throttle bore size "without a plate underneath" would accomplish the objective.

"(It is) straightforward and it is easily reversible if you decided that the quality of the racing was hurt by it," Roush said. "If they want to take 100 horsepower off … reduce horsepower significantly, the least expensive and most palatable way to do that is with a restriction on the intake side."

Today's Cup engines, limited to 358 cubic inches, produce approximately 850 horsepower. Speeds have increased, in part due to a new rules package and the continued development of the Generation-6 car, now in its second year. While officials with the three auto manufacturers currently involved at the series' top level, Chevrolet, Ford and Toyota, have been a part of the discussions, they say it is too early in the process to respond to potential engine changes.

"From an owner's standpoint, NASCAR has got to be mindful of … what it costs," Roush said.

"The race teams can only afford to change so many things at a time. With the expanding technology and the engineering costs that everybody has with the pressure for sponsorship and investment in the sport, a dramatic or unnecessary engine change would not be welcome in my world." More at NASCAR.com

Leave a Reply