7
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Storing two patterns of setting data in the memory
Two patterns of setting data including air correction factor, throttle opening, air
correction engine revolution speed, deceleration air upper limit, etc, can be stored
in the memory. There are two files that can be stored in the memory. The setting data
can be selected in an instant according to each driving stage such as circuit driving,
town driving, and winding driving. When driving on the same stage, two patterns of
setting data can be compared. These patterns of setting data can be used for various
purpose.
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Setting disable function by password
If the setting data or initial set points are changed by disoperation or mischief, the car
condition may be deteriorated, or in the worst case, the engine may be damaged. In
the SAFC II, when the user sets a password optionally, changing the setting data or
initial setup items is disabled.
■
Warning function to make hazard known
It is possible to set warning values for the airflow using ratio, suction tube pressure,
Karman swirl sensor frequency, knocking, and engine revolution speed.
When each item is set, the car condition can be precisely judged. The setting for the
engine speed can also be used as a shift timing point.
◆
Knocking
Spontaneous ignition is caused by the heat and pressure of mixed air in the burning
portion of non-combustion gas which is far from the plug and the heat of combustion
chamber wall, so that the gas in the whole combustion chamber generates high-
pressure waves momentarily. In this phenomenon, strong metallic noise is output from
the engine unlike car knocking by which the car body becomes jerky, with the result
that the valve is damaged and the piston is seized, thereby giving fatal damage to the
engine.
As countermeasures, fuel adjustment, ignition timing adjustment, compression ratio
adjustment, improvement of intake-side squish area, use of mirror type combustion
room wall, and profile improvement of the exhaust-side cam shaft can be mentioned.
●
During driving, the driver must not operate this product in any case.
It will interfere with driving operations or result in an accident.
●
On general public roads, observe the road and traffic law to drive
the car carefully.
WARNING
！
