When it comes to maintaining and tuning the Nissan 180SX S13 with the CA18 engine, selecting the right spark plug is vital for performance and engine longevity. This original Nissan spark plug with NGK heat range 7 is specifically designed for turbocharged and high-output setups where combustion pressures and temperatures reach extreme levels. A colder range 7 plug is essential for effectively transferring heat away from the combustion chamber, reducing the risk of detonation or pre-ignition that can cause catastrophic engine damage under load.
Unlike hotter plugs that retain more heat for mild or naturally aspirated applications, the range 7 spark plug is a proven choice for boosted CA18 engines running higher boost levels, aggressive tuning, or extended track use. By maintaining proper combustion control, it ensures reliable ignition, protects critical engine components, and helps extend overall engine life. Choosing the wrong plug can lead to fouling, misfires, or worse, making the correct heat range selection a crucial detail in any build.
At Terra Firma Automotive, we provide genuine Nissan spark plugs engineered for precision fit and performance. With the NGK range 7 plug, CA18 owners can trust their engines to deliver consistent power, efficiency, and protection in demanding driving conditions. Whether your 180SX S13 is built for the street or track, using the right spark plug is a small but critical investment in reliability and performance.
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