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Originally Posted by keithwalton
No it does not do the latter read my post please.
It stops the car hitting 'the wall' when in a slipstream it cannot prevent the car from being overtaken
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The "push to pass" button is a feature of Cart racing, not F1, where all the cars run the same Ford Cosworth turbocharged engine. It provides an extra 50 BHP for the duration of the press (approx 10 seconds) by increasing the turbo boost 2 to 3 inches and the driver has the use of this for 60 seconds during the race.
The so called "push to pass" in F1 is basically a fuel economy system that the cars use to conserve fuel during the race. Pushing the button increases fuel flow to the maximum and also advances the ignition by a couple of degrees.
Both the Cart and F1 systems can be used to assist passing
AND help prevent being passed. The Cart system gives a bigger percentage speed improvement than the F1 system.