HKS Super Fire Racing M40XL Spark Plug

XL Type

Thread Size: 12×26.5mm

Wrench Size: 16mm

Heat Range: NGK #8

Ultimate spark plug "M".

Ignitionability, durability, anti-insulation all reinforced. HKS has made the best plug for both tuning engines and stock engines.

Features

0.6mm Iridium Alloy Center Electrode

Iridium Alloy Center Electrode reduces voltage requirement as well as improving ignition performance and durability.

Outer Electrode with Platinum Chip

The Outer Electrode incorporates a square platinum chip which improves durability, and when combined with the iridium center electrode boosts ignition performance. The Outer Electrode features a shortened tip design and tapered shape while maintaining the necessary space for proper ignition.

Short Type Outer Electrode (Anti-Vibration)

The outer electrode has been shortened and engineered with the ideal shape to decrease weight for resistance against vibration. This anti-vibration design improves longevity of the outer electrode.

Thermal Edge

After long idling or various combustion conditions carbon buildup can occur causing misfires. The Thermal Edge of the ceramic insulator will discharge to help decrease carbon deposits.

Spark Support Gap

Discharges will occur in the Spark Support Gap (space between the tip of insulator and the base of the outer electrode) to help prevent carbon buildup.

• 

• Performance and Efficiency

  • Increased Ignition Performance
    Decreased voltage requirement strengthens ignition performance under harsh conditions like lean mixture or high boost pressure.
  • Improved Durability
    New material and design improves durability, which allows for use under hard combustion conditions like continuous high load during circuit driving or aggressive tuning.
    * Improper combustion condition and wrong heat range selection might cause damage to the spark plug.
  • Decreased Carbon Deposits
    Thermal Edge and Spark Support Gap help prevent carbon buildup for better ignition under various combustion conditions.

  Special Design RE-type for Rotary Engines

  Rotary engines reciprocating design have a different mechanism and combustion condition. RE-type spark plugs are specially designed to meet the different requirement for rotary engines. The straight shape platinum outer electrode enables reliable ignition performance.

   

  ■Heat Range Conversion Chart

   

  HKS	25	30	35	40	45	50	52.5	55
  DENSO	16	20	22	24	27	31	32	34
  NGK	5	6	7	8	9	10	10.5	11

   

  HKS Plug ignites faster and efficient for the best fuel efficiency and the best performance in all situation and environment. It’s very important to provide safe and stable ignition for engine to perform at a maximum power. HKS Super Fire Racing plug is the best plug item for extreme racing driving and also works fine for the normal tuning engine.

   

  Features

  • 0.6mm Iridium Alloy Center Electrode
    Iridium Alloy Center Electrode reduces voltage requirement as well as improving ignition performance and durability.
  • Outer Electrode with Platinum Chip
    The Outer Electrode incorporates a square platinum chip which improves urability, and when combined with the iridium center electrode boosts ignition performance.
    The Outer Electrode features a shortened tip design and tapered shape while
    maintaining the necessary space for proper ignition.
  • Short Type Outer Electrode (Anti-Vibration)
    The outer electrode has been shortened and engineered with the ideal shape to decrease weight for resistance against vibration. This anti-vibration design improves longevity of the outer electrode.
  • Thermal Edge
    After long idling or various combustion conditions carbon buildup can occur causing misfires. The Thermal Edge of the ceramic insulator will discharge to help decrease carbon deposits.
  • Spark Support Gap
    Discharges will occur in the Spark Support Gap (space between the tip of insulator and the base of the outer electrode) to help prevent carbon buildup.

  Performance and Efficiency

  • Increased Ignition Performance
    Decreased voltage requirement strengthens ignition performance under harsh conditions like lean mixture or high boost pressure.
  • Improved Durability
    New material and design improves durability, which allows for use under hard combustion conditions like continuous high load during circuit driving or aggressive tuning.
    * Improper combustion condition and wrong heat range selection might cause damage to sparkspark plug.
  • Decreased Carbon Deposits
    Thermal Edge and Spark Support Gap help prevent carbon buildup for better ignition under various combustion conditions.

  Special Design RE-type for Rotary Engines

  Rotary engines reciprocating design have a different mechanism and combustion condition. RE-type spark plugs are specially designed to meet the different requirement for rotary engines. The straight shape platinum outer electrode enables reliable ignition performance.

   

  HKS	25	30	35	40	45	50	52.5	55
  DENSO	16	20	22	24	27	31	32	34
  NGK	5	6	7	8	9	10	10.5	11

   

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  Mini	Hatch	One R56	2007	2010	N12B14A	1.4L - FWD Petrol
  Mini	Hatch	First R56	2009	2010	N12B14A	1.4L - FWD Petrol
  Mitsubishi	i		2007	2010	3B20	0.7L - RWD Petrol
  Mitsubishi	Lancer	Evolution X	2008	2013	4B11T	2.0L FQ 360 - 4WD Petrol
  Mitsubishi	Lancer	Evolution X	2008	2013	4B11T	2.0L FQ 330 - 4WD Petrol
  Mitsubishi	Lancer	Evolution X	2009	2010	4B11T	2.0L FQ 400 - 4WD Petrol
  Suzuki	Swift		2013		K12B	1.2L - 4WD Petrol
  Volkswagen	Passat	B6	2005	2009	AXZ	3.2L 4Motion - 4WD Petrol