| Article
5: Engines |
| 5.1.2 | Subject only to Article 5.2, engine capacity must not exceed 2400
cc. |
| 5.1.4 | All engines must have 8 cylinders arranged in a 90º “V” configuration
and the normal section of each cylinder must be circular. |
| 5.1.5 | Engines 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 |
| 5.2 | Alternative
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. |
| 5.4 | Engine
dimensions |
| 5.4.1 | Cylinder bore diameter may not exceed 98mm. |
| 5.4.2 | Cylinder
spacing must be fixed at 106.5mm (+/- 0.2mm). |
| 5.4.3 | The crankshaft centreline must not
be less than 58mm above the reference plane. |
| 5.5 | Weight and
centre of gravity |
| 5.5.1 | The overall weight of the engine must be a minimum of 95kg. |
| 5.5.2 | The
centre of gravity of the engine may not lie less than 165mm above the reference plane. |
| 5.5.3 | The
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. |
| 5.5.4 | When 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. |
| 5.5.5 | When 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. |
| 5.6 | Variable
geometry systems |
| 5.6.1 | Variable geometry inlet systems are not permitted. |
| 5.6.2 | Variable
geometry exhaust systems are not permitted. |
| 5.6.3 | Variable valve timing and variable
valve lift systems are not permitted. |
| 5.7 | Fuel systems |
| 5.7.1 | The
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. |
| 5.7.2 | Only
one fuel injector per cylinder is permitted which must inject directly into the side or the top of the inlet port. |
| 5.8 | Electrical
systems |
| 5.8.1 | Ignition 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. |
| 5.8.2 | Only
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. |
| 5.8.3 | The
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. |
| 5.9 | Engine actuators
With the
following exceptions hydraulic, pneumatic or electronic actuation is forbidden:- Electronic solenoids uniquely for
the control of engine fluids ;
- Components providing controlled pressure air for a pneumatic valve system ;
- A single
actuator to operate the throttle system of the engine.
|
| 5.10 | Engine
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. |
