Racing Plug 4586

【NGK R6601-11 Racing Plug 4586 ngk r6601-11-4586】
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 engines tuned for higher output.
Therefore, their shape differs from standard plugs specified by the manufacturer, and plug life and low-speed performance may be slightly compromised.
However, on the other hand, they are developed and designed to fully exhibit performance even in highly tuned engines and under very severe operating conditions, and are set with a wide range of heat ratings.
Please select the appropriate plug for your specific engine to achieve full performance.
Points to note when choosing racing plugs
Research the screw size, plug type, and shape from the part number of your genuine plug or the plug you are currently using, and select the corresponding type.
Please refer to the manufacturer's website for guidance on how to choose the ignition tip shape.
The heat range needs to be selected to maintain the optimal temperature range of the plug's ignition tip, taking into account the increase in combustion temperature due to improved engine output and operating conditions.
Simply increasing the heat range alone will not improve engine performance.
For mainly street use, numbers 7-8 are common; for track days, 8-9; and for racing, 9-10.
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 the 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 illustrative purposes only, and the design and specifications of the products shown are subject to change without notice. Please understand.