Standardized push-to-pass parameters are among the engineering updates incorporated into the 2013 IZOD IndyCar Series rulebook.

Push-to-pass, which was introduced to the new engine-chassis package last July on the streets of Toronto, will have parameters for each of the road/street course events, including doubleheader races at Detroit, Toronto and Houston. The option gives drivers a turbocharger boost from 21.7 Psi to 23.2 Psi and additional 200 RPM with the push of a button located on the steering wheel.

There’s no delay in activation or refresh time.

“If the driver chooses to use one, they can’t cancel it. It’s use it or lose it,” INDYCAR vice president of technology Will Phillips said. “That in itself makes it more difficult to choose to use as a defense mechanism rather than as an overtaking opportunity. You’ll have to be careful because there are only 10 opportunities to use it during a race. The length of each push of the button should cover the longest straight, if that’s where they choose to use it, of each circuit.”

IZOD IndyCar Series-controlled push-to-pass parameters