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Manual Smart M160 / 1– UL- Engine
July 05
Ecofly GmbH page 13
3.2. Height
The turbocharger is configured such that the engine will deliver 60/74KW of
power up to 2500m height.
Reduce power setting above 2400m so that the turbocharger does not
exceed its maximum rotational speed.
As a thumb rule:
Reduce power by 50 RPM (i.e. by about 1%) for every 100m increase in height
above 2400m. For example, at 3000m, reduce power by 300 RPM (6*50=300).
We recommend that you reduce the RPM even further above a certain height.
3.3. Manifold Temperature
Maximum permissible manifold temperature is 45°C at 20°C ambient
temperature.
The lower the manifold temperature, the better will be engine performance due
to the more favourable ignition angle and higher air density.
Engine power output is lower at 45–55°C while at 60°C, the ECU will sharply
lower manifold pressure!
Use Super Plus (98 RON) fuel at very high ambient temperatures to prevent the
anti-knocking system from scaling back ignition.
If necessary, use an electric fan to support cooling (in cases where air flow is
poor, e.g. in trike applications).
In general, allow uniform air flow on the surface of the intercooler!
3.4. Manifold Pressure
Manifold pressure at full power setting must show between 0.7 and 1.0 bar (60
KW) or 1.2 and 1.4 bar (74 KW).
The SMART-MIP (engine monitoring unit) which shows total pressure, will
indicate at full load 1.7 to 2 bar (60 KW) and 2.2 to 2.4 bar (74 KW).
If pressure is not high enough, check system for leaks. If no obvious faults are
found, contact the service centre and have the turbocharger recalibrated.
If the manifold pressure exceeds 1.0 bar (60 KW) or 1.4 bar (74 KW), contact
the service centre and have the turbocharger recalibrated.