56
spark plugs enhances the
performance of an engine. Acceleration is improved
when compared against normal spark plugs.
Q
15
A
Does engine performance improve when
is used?
The 0.4 mm iridium center electrode and the specially shaped ground electrode
in an
enable a superior ignitability and a lower required
voltage than any seen in the past. Accordingly, there is less misfire in areas
where required voltage is high, and less misfiring in areas where firing is difficult.
No matter how heavy the conditions, high response driving is enabled. As a
result, acceleration is better than when normal spark plugs are used.
The following graph is an example of an acceleration test.
50
100
150
(km/h)
Speed
Difference of 0.7 seconds
Time
Normal
spark plug
φ0.4
Difference of 6m
Distance run (m)
790
800
810
Spark plug
Center electrode diameter
(mm)
Normal spark plug
φ2.5
Good
Vehicle: 250 cc (2-cycle, water-cooled, V2 cylinders)
Conditions: Fixed in sixth gear
Flat out acceleration from 50 km/h using an automatic driving device
Vehicle: 250 cc (2-cycle, water-cooled, V2 cylinders)
Conditions: Fixed in sixth gear
Flat out acceleration from 50 km/h using an automatic driving device
There was a difference of 0.7 seconds between
and normal spark plugs in the
time taken to reach 150 km/h. There was also a difference of 6 m in the distance covered to reach that speed.
Running distance difference at 150km/h between ordinaly spark plug and
.
(The above is analyzed in DENSO.)
