RR14S Silver Racing Spark Plug

The Brisk Racing RR14S spark plug is engineered for optimal performance in tuned and race engines, as well as vehicles using alternative fuels like E85, LPG, and CNG. Its design incorporates a smaller diameter silver core and a conventional open spark hook type earth electrode, which provides superior ignition of high-octane fuel mixtures. Silver's excellent thermal and electrical conductivity allows for faster heat dissipation, resulting in a lower spark plug temperature and a more powerful spark, leading to improved flame front propagation and a smoother higher RPM range. This spark plug is compatible with most aftermarket and OEM ignition systems, including modern direct ignition systems found on performance engines. Key features include a 1.5 mm silver wire center electrode for maximum conductivity, a lower voltage requirement that can reduce wear on coils and leads, and the ability to fire properly even if fouling occurs, a common failure point for standard plugs. The Brisk RR14S has a service life of approximately 30,000 km or 18,000 miles for street use, and up to 50 hours of racing time. Popular applications for the Brisk RR14S include the 2011-20 Ford Mustang 5.0, 2011 Chevy Camaro V6, and GEN 3 HEMI Engines (5.7L, 6.1L) found in Dodge SRT and Chrysler 300 models. It is noted to be one step colder than a stock 5.0 Coyote, two steps colder on a 6.1L HEMI, and three steps colder on a 5.7L HEMI. The specifications include a 14mm thread diameter, 25mm (1") thread reach, 16mm (5/8") hexagon, and a tapered seat design. The plug is also specified as having a resistor and a heat range of 14.