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2006 Sporting Regulations (31/10/05)
2006 Technical Regulations
(31/10/05)

Formula 1 Regulations
Engine

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Summary & Links to all the important FIA announcementsBack to main 2006 F1 Regulations

Technical Regulations:

Article 5: Engines
5.1.2Subject only to Article 5.2, engine capacity must not exceed 2400 cc.
5.1.4All engines must have 8 cylinders arranged in a 90º “V” configuration and the normal section of each cylinder must be circular.
5.1.5Engines must have two inlet and two exhaust valves per cylinder.
Only reciprocating poppet valves are permitted.
The sealing interface between the moving valve component and the stationary engine component must be circular
5.2Alternative engines :
For 2006 and 2007 only, the FIA reserves the right to allow any team to use an engine complying with the 2005 engine regulations, provided its maximum crankshaft rotational speed does not exceed a limit fixed from time to time by the FIA so as to ensure that such an engine will only be used by a team which does not have access to a competitive 2.4 litre V8 engine.
5.4Engine dimensions
5.4.1Cylinder bore diameter may not exceed 98mm.
5.4.2Cylinder spacing must be fixed at 106.5mm (+/- 0.2mm).
5.4.3The crankshaft centreline must not be less than 58mm above the reference plane.
5.5Weight and centre of gravity
5.5.1The overall weight of the engine must be a minimum of 95kg.
5.5.2The centre of gravity of the engine may not lie less than 165mm above the reference plane.
5.5.3The longitudinal and lateral position of the centre of gravity of the engine must fall within a region that is the geometric centre of the engine, +/- 50mm.
5.5.4When establishing conformity with Article 5.5, the engine will include the intake system up to and including the air filter, fuel rail and injectors, ignition coils, engine mounted sensors and wiring, alternator, coolant pumps and oil pumps.
5.5.5When establishing conformity with Article 5.5, the engine will not include liquids, exhaust manifolds, heat shields, oil tanks, water system accumulators, heat exchangers, hydraulic system (e.g. pumps, accumulators, manifolds, servo-valves, solenoids, actuators) except servo-valve and actuator for engine throttle control, fuel pumps nor any component not mounted on the engine when fitted to the car.
5.6Variable geometry systems
5.6.1Variable geometry inlet systems are not permitted.
5.6.2Variable geometry exhaust systems are not permitted.
5.6.3Variable valve timing and variable valve lift systems are not permitted.
5.7Fuel systems
5.7.1The pressure of the fuel supplied to the injectors may not exceed 100 bar. Sensors must be fitted which directly measure the pressure of the fuel supplied to the injectors, these signals must be supplied to the FIA data logger.
5.7.2Only one fuel injector per cylinder is permitted which must inject directly into the side or the top of the inlet port.
5.8Electrical systems
5.8.1Ignition is only permitted by means of a single ignition coil and single spark plug per cylinder. The use of plasma, laser or other high frequency ignition techniques is forbidden.
5.8.2Only conventional spark plugs that function by high tension electrical discharge across an exposed gap are permitted.
Spark plugs are not subject to the materials restrictions described in Articles 5.13 and 5.14.
5.8.3The primary regulated voltage on the car must not exceed 17.0V DC. This voltage is defined as the stabilised output from the on-car charging system.
5.9Engine actuators
With the following exceptions hydraulic, pneumatic or electronic actuation is forbidden:
  1. Electronic solenoids uniquely for the control of engine fluids ;
  2. Components providing controlled pressure air for a pneumatic valve system ;
  3. A single actuator to operate the throttle system of the engine.
5.10Engine auxiliaries
With the exception of electrical fuel pumps engine auxiliaries must be mechanically driven directly from the engine with a fixed speed ratio to the crankshaft.

Summary & Links to all the important Formula 1 announcements by the FIA

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