Launched in 2002, Sumo Power is one of the UK's biggest names in performance parts,
supplying high quality aftermarket solutions for the majority of Japanese cars.
With our extensive range of quality brands as well as contacts in the best tuning companies around the globe,
you'll always be in safe hands with Sumo Power. Our excellent sales staff and customer service
aims to cater for all your tuning needs through our unrivalled mail order service.
All of the brands we deal with are available on our 'Tuning Parts' page. If for any reason you cannot find
exactly what you're looking for, remember to give our team a call or contact us through our website for more help.
Sumo Power Limited is a limited company registered in England and Wales, Registered Number: 08887906
Registered Address: Unit 1 Faraday Business Park, Littleport, Ely, Cambridgeshire, CB6 1PE
SUPER FIRE RACING
【SUPER FIRE RACING M Series】
Ultimate spark plug "M".
Ignitionability, durability, anti-insulation are 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 and improves ignition performance and durability. - Outer Electrode with Platinum Chip
The outer electrode incorporates a square platinum chip which improves durability, and combining 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 under various combustion conditions, carbon buildup can occur causing misfires. The thermal edge of the ceramic insulator discharges to help decrease carbon deposits. - Spark Support Gap
Discharge occurs 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 improve 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 may 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社 | 16 | 20 | 22 | 24 | 27 | 31 | 32 | 34 |
| NGK社 | 5 | 6 | 7 | 8 | 9 | 10 | 10.5 | 11 |
* Above information is the reference for heat resistance.
| Spark Plug Type | Thread Size | Wrench Size | Heat Range | Code No. |
|---|---|---|---|---|
| JIS Type | 14x19mm | 16mm | NGK #7 | 50003-M35 |
| JIS Type | 14x19mm | 16mm | NGK #8 | 50003-M40 |
| JIS Type | 14x19mm | 16mm | NGK #9 | 50003-M45 |
| ISO Type | 14x19mm | 16mm | NGK #7 | 50003-M35i |
| ISO Type | 14x19mm | 16mm | NGK #8 | 50003-M40i |
| ISO Type | 14x19mm | 16mm | NGK #9 | 50003-M45i |
| G Type | 14x19mm | 20.8mm | NGK #7 | 50003-M35G |
| G Type | 14x19mm | 20.8mm | NGK #8 | 50003-M40G |
| G Type | 14x19mm | 20.8mm | NGK #9 | 50003-M45G |
| X Type | 12x19mm | 16mm | NGK #8 | 50003-M40X |
| XL Type | 12x26.5mm | 16mm | NGK #8 | 50003-M40XL |
| XL Type | 12x26.5mm | 16mm | NGK #9 | 50003-M45XL |
| LONG REACH Type | 14x26.5mm | 16mm | NGK #7 | 50003-M35iL |
| LONG REACH Type | 14x26.5mm | 16mm | NGK #8 | 50003-M40iL |
| LONG REACH Type | 14x26.5mm | 16mm | NGK #9 | 50003-M45iL |
| HL Type | 12x26.5mm | 14mm | NGK #8 | 50003-M40HL |
| HL Type | 12x26.5mm | 14mm | NGK #9 | 50003-M45HL |
| HL Type | 12x26.5mm | 14mm | NGK #10 | 50003-M50HL |