Page 274 - 05. Subyek Teknik Mesin - Automobile Mechanical and Electrical Systems Automotive Technology Vehicle Maintenance and Repair (Vehicle Maintenance Repr Nv2) by Tom Denton

2
258 Automobile mechanical and electrical systems

2.8.2 FIA technical regulations

This section gives a simplifi ed overview of the technical regulations as at 2011,
which relate to the F1 engine (Source: www.fi a.com ). Please note that before
you design and build your own F1 engine, you should refer to the offi cial FIA
technical regulations!

2.8.2.1 Specifi cation
Only four-stroke engines with reciprocating pistons are permitted.
●
Engine capacity must not exceed 2400 cc.
●
Crankshaft rotational speed must not exceed 18 000 rpm.
●
Supercharging is forbidden.
●
All engines must have eight cylinders arranged in a 90° V confi guration and the
●
normal section of each cylinder must be circular.
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.
2.8.2.2 Dimensions, weight and centre of gravity
Cylinder bore diameter may not exceed 98 mm.
●
Cylinder spacing must be fi xed at 106.5 mm ( 0.2 mm).
●
The crankshaft centreline must not be less than 58 mm above the reference
●
plane.
The overall weight of the engine must be a minimum of 95 kg.
●
The centre of gravity of the engine may not lie less than 165 mm above the
●
reference plane.
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, 50 mm. The

geometric centre of the engine in a lateral sense will be considered to lie on
the centre of the crankshaft and at the mid-point between the centres of the
forward and rear-most cylinder bores longitudinally.
Variable geometry systems are not permitted.
●

2.8.2.3 Materials
Magnesium-based alloys, metal matrix composites (MMCs) and intermetallic
●
materials may not be used anywhere in an engine.
Coatings are free provided the total coating thickness does not exceed 25%
●
of the section thickness of the underlying base material in all axes. In all cases
the relevant coating must not exceed 0.8 mm.
Pistons must be manufactured from an aluminium alloy which is Al–Si, Al–Cu,
●
Al–Mg or Al–Zn based.
Piston pins, crankshafts and camshafts must be manufactured from an iron-
●
based alloy and must be machined from a single piece of material.
A supplementary device temporarily connected to the car may be used to start
●
the engine both on the grid and in the pits.