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SUPER FIRE RACING
【SUPER FIRE RACING MR Series】
Ruthenium Electrode
M12 Long Reach High Heat Range Tuning Sparkplug with Protruding Electrode
Concept and Features
M12 Long Reach Sparkplug with proturding electrode for such vehicles as Honda Civic Type R and Suzuki Swift Sport.
The lineup is equivalent NGK No. 8 and No. 9 heat values. New series of plugs inherits the best from existing M series and features Ruthenium Alloy Electrode to provide a reliable spark for all vehicles, including vehicles with increased boost or lightly tuned vehicles.
On top of extended lifetime, use of Ruthenium alloy allows a better fuel burn, resulting in quicker throttle response, smoother idle and better cold starts.
Warning
Use of this spark plugs on a vehicle not compatible with this type of spark plugs may lead to serius engine damage. When replacing sparkplugs, be sure to compare the shape of a new plug with the installed one. Please select an appropriate spark plug for yor vehicle.
Features
Ruthenium Alloy Center Electrode reduces voltage requirement as well as ignition perfomance improvement and durability.
Brass Terminal offers film fitting to plug wire or coil-pack.
Plating coating for better insulation and excellent corrosion resistance.
Outer electrode with platinum squre chip improves ignition, maximum durability, combustion speed and quality.
The outer electrode has been shortened and engineered with the ideal shape to decrease weight for resistance against vibration.
The tuning parts are also evolving with the appearance of spark plugs in consideration of fuel efficiency improvement and environmental performance.The use of spark plugs with an ignition position projecting 2 mm more than usual has been increasing. As you are aware, in sports vehicles such as the new Honda Civic Type R and Suzuki Swift Sport, this type of spark plug has also been adopted. We expect more and more cars will use this type of spark plug in the future.
Details on spark plug sizes
The original shape of Suzuki Swift Sport (XL projecting type) is a bracket projecting type, but HKS adopts a shell projecting type to improve resitstance agains pre-ignition resistance and securing strength.
HL Type
(φ9, 14mm, M12-L26.5）FK8
XL Type
(φ10.5, 16mm, M12-L26.5) ZC33S
HKS SPARK PLUGS for BMW B Series Engine/TOYOTA GR SUPRA
Features
- This spark plug is the M12 and Bi-HEX14 shape that is compatible with the GR Supra and BMW B series engine (B58, B48 and B38) vehicles.
- We are offering NGK heat range 8 equivalent spark plug, which is ideal for replacing genuine products, and NGK 9 equivalent spark plug, which provide a higher grade of peace of mind with tuned car.
- Durability is ensured by alloying the central electrode with ruthenium.
- The center electrode diameter set at 0.6mm reduces the required voltage and improves ignition performance. (Stock: 0.8mm)
- Ground electrode with platinum alloy tip improves durability and ignitability. Shortened ground electrode length contributes to electrode strength and durability.
- The ground electrode contains a copper core to suppress temperature rise of the electrode and improve durability.
- The MR45XLB is designed to minimize the dimensions protruding into the combustion chamber, making it less susceptible to the heat inside the cylinder, which rises under tuning, and further improving durability in high-output vehicles.
Ignition point protrusion differs by 1.2 mm
The MR45XLB, which has a higher heat value, is designed to be less affected by heat inside the cylinder to improve durability in high-horsepower vehicles.