…when the car is on pit lane.
That means when the car is pulling into or out of the pits, those new 1.6 liter V6s sitting behind the drivers should stay as quiet as Eric Cantor when he realizes he needs to borrow a pen from President Obama—no sparking and no fuel allowed. Those V6s will be restricted to 15,000 rpm, while the maximum output for the KERS system has been jacked up to 120kW (161 hp)—double the current output. The minimum weight for the cars themselves gets a bump from 1,408 lbs. to 1,452 lbs., as well.
Of course, the FIA's full list of new rules runs 77 pages long (if you're really bored, you can check it out here), so there's plenty of other facts and figures to go around. We won't spoil them all for you, but we will mention that laser fuel ignition remains verboten through 2014. [via FIA, Pitpass]