It's normal to seek more power and a better powerband, and to apply that power more usably through electronic controls. This past year, there was an added complication: a new rule requiring use of no more than five engines for the last seven events. The rules-makers imagined they were saving the sport money but, as usual, the result is the opposite. The easy response to the engine rule would be to chop a thousand revs off the top and get on with it. That would cut peak piston acceleration by 10 percent and, by postponing the first appearance of piston cracking (currently The Biggie in engine durability), achieve the necessary extra reliability.