Racing Plugs 4614

[NGK R7282A-105 Racing Plug 4614 ngk r7282a-105-4614]
Racing plugs recommended for two-wheeled and four-wheeled vehicles are available in various types aimed at further performance improvement when used with increased engine output due to racing, circuit driving, or tuning.
Therefore, their shape differs from the manufacturer's standard specified 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 their performance even in extremely tuned engines and very severe operating conditions, and are set with a wide range of heat ratings.
Please select the appropriate plug for your individual engine to fully unleash its performance.
Precautions when choosing racing plugs
Please check the thread size, plug type, and shape from the part number of the genuine plug or the plug you are currently using, and select the corresponding type.
Please refer to the manufacturer's website for how to choose the spark plug tip shape.
The heat rating needs to be selected considering the increase in combustion temperature due to increased engine output and operating conditions, in order to keep the spark plug tip temperature within the optimal range.
Simply raising the heat rating alone will not improve engine performance.
For mainly street use, numbers 7-8 are used; for track day specifications, numbers 8-9; and for race specifications, numbers 9-10.
The presence or absence of a resistor in the plug makes almost no difference these days due to improvements in ignition system performance.
Resistor types will become the mainstream in the future.
Conversely, non-resistor types may cause engine trouble in some models of some vehicle types.
In such cases, please be sure to use the 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.