The FIA has approved the 2013 engine regulations, but has said it could delay the introduction of the four-cylinder units if the teams request it.
The new rules will see four-cylinder, 1.6 litre turbo engines replace the current V8's in a bid to lower fuel consumption. The teams, however, have been voicing doubts about the switch, and the FIA announced that the 2013 date could be pushed back.
"In consultation with the main stakeholders, and following the outcome of this consultation, a fax vote by the WMSC could be considered by 30 June latest to redefine the implementation date of these technical regulations," an FIA statement said.
The list of confirmed regulations are as follows:
- Power units will be four cylinders, 1.6 litre with high pressure gasoline injection up to 500 bar with a maximum of 12,000 rpm, with extensive energy management and energy recovery systems (now known as ERS), reflecting the decision taken by the WMSC in December 2010
- The aerodynamic regulations have been based on 2011 rules, with modifications in order to improve the aerodynamic efficiency: together with the power train rules, this will enable a 35% reduction in fuel consumption
- The height of the tip of the nose will be limited to ensure better compatibility in a T-bone style accident
- A limitation on transmissions (gear ratios, number of gearboxes) in order to decrease costs
- The overall weight of the car must be no less than 660kg
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