Racing Spark Plug 5495

【NGK R7440B-11T Racing Plug 5495 ngk r7440b-11t-5495】
The racing plugs recommended for two-wheelers and four-wheelers come in various types, designed to further improve performance when used in races, circuit driving, or with increased engine output due to tuning.
Therefore, their shape differs from the manufacturer's standard plugs, and plug life and low-speed performance may be slightly compromised.
However, on the other hand, they are developed and designed to fully demonstrate performance and withstand even extremely tuned engines and very harsh operating conditions, and are set to a wide range of heat ratings.
Please select the appropriate plug for your engine to achieve full performance.
Precautions when choosing racing plugs
From the part number of your genuine plug or the plug you are currently using, determine the screw size, plug type, and shape, and then select the corresponding type.
Please refer to the manufacturer's website for guidance on how to choose the firing end shape.
The heat range must be selected considering the increase in combustion temperature due to increased engine output and operating conditions, in order to maintain the plug's firing end temperature within the optimal range.
Simply increasing the heat range will not improve engine performance.
Generally, heat ranges 7-8 are used for street driving, 8-9 for track days, and 9-10 for racing.
The presence or absence of a resistor in the plug makes almost no difference nowadays due to improvements in ignition system performance.
Resistor types will become mainstream in the future.
Conversely, non-resistor types may cause engine problems in some models of some vehicle types.
In such cases, always use a resistor type.
*The image is for illustration purposes only, and the design and specifications of the products shown are subject to change without notice. Please be aware of this.