ELF
WRF 4 STROKE SUPERCHARGED or ATMOSPHERIC
ENGINES UNLEADED
Typical
figures
FIA-WRC
Regul.
DENSITY
Kg/l
at 15°C
0.765
0.735
to 0.765
REID
VAPOUR PRESSURE
bar
at 37,8°C
0.480
0400
à 0.600
RON
101.6
mini
100 / maxi 102
MON
89.4
mini
88 / maxi 90
DISTILLATION
(°C)
30
%
76
50
%
99
90
%
128
95
%
151
FBP
169
maxi
215°C
%
vol. at 70°C
24
15
to 47 %
%
vol. at 100°C
52
46
to 70 %
OXYGEN
%
%
m/m
2.6
2.7
% max
LEAD
CONTENT
g/litre
<0.001
0.005
g/l max
SULPHUR
%
m/m
0.005
0.005
% maxi
BENZENE
%
vol.
0.05
0.1
% maxi
APPLICATIONS
Controlled
fuel for 2002-2003 World Rally Championship:
Complies with the FIA- WRC regulation.
Top cars
in the World championship are turbocharged;
so WRF has been formulated with
this concern in mind. But it can
also be used without restriction
for atmospheric 4-stroke engines.
One can
observe that the fuel regulation
is considering the environmental
purposes as a major concern and
it consequently it is important
to mention the extremely low contents
of sulphur and benzene.
RECOMMENDATIONS
WRF is in
the range of high-density fuels
and it is worthwhile to re-tune
Air/ Fuel ratio accordingly. Comparatively
it is generally necessary to reduce
gasoline flows for optimum results
(usually best equivalent air/fuel
ratios are in the range of 1.10
to 1.15 for atmospheric engines
and around 1.20 for supercharged
engines). Ignition setting should
also be re-tuned in order to reach
optimum performances.
In order
to maintain the original properties,
and according to Health and Safety
regulations of commercial fuels,
this gasoline shall be handled and
stored in a cool place and always
maintained in tightly shut drums.
