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Motorcycle riders, classic car drivers and boat owners may favour different forms of transport, but they all want the same, reliable start and thousands of kilometres of trouble-free travel. That was the concept behind NGK SPARK PLUG’s introduction of Iridium IX: to make the highest performance, modern Iridium technology spark plug upgrade available to the Aftermarket – including vintage motorcycles and cars which did not have Iridium technology fitted ex-works, because it did not exist at the time.
Power for 2-wheels
Recognising particular demand for upgrades from the 2-wheel sector, the company initially launched its Iridium IX technology in 2006, especially for motorcycles.
The goal, explains Kai Wilschrei, Senior Manager Technical Services Aftermarket EMEA at NGK SPARK PLUG EUROPE, was to help riders achieve significantly better performance from their bikes, whether on the road or track. “Motorcycles are often fitted with standard nickel spark plugs as original equipment. But the extreme strength and durability of iridium offers the potential for enhanced ignition reliability and performance. With Iridium IX – short for ‘Iridium IXtreme’ – we were able to give riders improved ignitability that lasted even longer than platinum. They could also enjoy a smoother, more economical riding experience.”
Iridising vintage cars
The benefits of Iridium IX are not restricted to 2-wheels. NGK SPARK PLUG soon expanded the technology to put more power under the bonnet of classic cars too.
“Iridium IX offers an excellent upgrade opportunity for older cars and some younger ones, as well” affirms Kai Wilschrei. “Fitting them as replacement spark plugs assures vintage car drivers of reliable first-time ignition, no misfires and the longest possible service life – with no carbon build-up.”
Wilschrei himself owns a vintage Audi 90 built in 1985, as well as an old scooter. “The first thing I had done after buying the car was to replace the spark plugs with Iridium IX upgrades,” he confirms. “Now the car is much quieter when the engine is idle. Starting performance is also very good. The same goes for my Vespa!”
What riders said
When NGK Iridium IX spark plugs were first launched, more than 230 riders of modern and classic motorcycles tested them out. Here is some of their feedback:
- “The Iridium plug has optimised the running smoothness of my single cylinder.” Rico
- “After five refuelling cycles the plug has already paid for itself. Fuel consumption has dropped to less than five litres per 100 km.” Kirsten
- “The Iridium plug changes driving and response behaviour significantly. What I like most is that the power kick-starts about 1,000 rpm earlier, which is very useful after cornering.” Andre
- “There has been a clear difference to normal spark plugs, especially in winter. Starting behaviour was clearly better and even with a cold engine its smoothness was remarkable.” Othmar
More life on the waves
The Iridium IX effect can also be enjoyed on the water. The high-tech plugs offer workshops and boat owners a simple way to boost the performance of almost every marine engine. “Because the electrode design of Iridium IX plugs reduces the voltage needed for a powerful spark and extends plug life, they are ideal for use on the sea or inland waters. Boat engines start more easily, run better and accelerate more smoothly,” advises the expert.
The advantages aren’t just for high speed trips. Iridium IX spark plugs also improve response at the slower pace of canal narrowboats, on floodplains and moving around harbours or marinas. This is because the anti-fouling annular gap prevents the sooty deposits that often accumulate on nickel marine plugs at low speeds.
“NGK Iridium IX upgrades deliver first-class performance, efficiency and reliability for motorcycles, classic cars and boats, whether in motorsports or on everyday journeys,” concludes Kai Wilschrei. “Everyone should make the move!”
To find out more about NGK SPARK PLUG’s Iridium IX spark plugs visit www.ngkntk.com.
Fitting Iridium IX spark plugs offers end-customers a host of advantages:
- Improved ignition: 0.6mm diameter iridium tip focuses electrical energy around the centre electrode, producing more efficient air-fuel ignition
- Faster starting; quieter running: High ignitability means the engine starts up quickly and runs smoothly, even on cold, damp mornings. Hydrocarbon emissions also reduced
- Better fuel consumption: More ignitable mixture reaches the spark, increasing combustion efficiency and reducing fuel use (In 2-wheel test: 5.64 litres used/100 km with 2.5mm standard plug, vs 5.55 litres used/100 km with Iridium IX)
- Longer lifespan: High melting point means iridium centre electrode lasts longer than standard plug electrodes
- Fewer misfires: Standard spark plugs gradually erode, increasing the distance between electrodes, affecting ignition quality and causing misfires. Consistent Iridium IX electrode distance avoids these issues
- No carbon build-up: Special annular gap prevents the carbon particle deposits that can block ignition voltage: especially beneficial in stop-start traffic
About NGK SPARK PLUG:Worldwide: NGK SPARK PLUG is one of the leading automotive and technical ceramics suppliers, with its corporate headquarters in Nagoya, Japan and sales organisations and production facilities all over the world. The automotive side of the company specialises in the fields of ignition and sensor technology, supplying Original Equipment and Aftermarket customers across the globe. Its product portfolio for the Aftermarket comprises spark plugs, glow plugs, ignition coils and leads under the NGK Ignition Parts brand, whilst oxygen and temperature sensors, NOx sensors, mass air flow (MAF) and manifold absolute pressure (MAP) sensors operate under the brand NTK Vehicle Electronics. With more than 14,500 employees, the company’s automotive and technical ceramics activities generate a total annual turnover of around 3.1 billion Euros worldwide. NGK SPARK PLUG’s European sales (including its EU, UK, France and Eurasia subsidiaries) account for 26% of this global turnover. NGK SPARK PLUG is represented on all continents and has 41 group companies, 24 production plants and five technical centres.
Aftermarket EMEA: NGK SPARK PLUG has seen significant growth across the Aftermarket since expanding beyond motorcycle parts into the automotive sector in the 1970s. With an outstanding commitment to quality, technology and research & development the company has become the world’s number one in spark plugs and oxygen sensors, and a leading provider of glow plugs, ignition coils and leads as well as further sensor technology. Organisationally NGK SPARK PLUG’s regional headquarters in Ratingen, Germany serves the Aftermarket across Europe, the Middle East and Africa. In the EMEA region the company has ten group companies and approximately 1,000 employees, as well as two production plants in France and South Africa and a technical centre in Germany.
For more information please visit: https://www.ngkntk.com/
For further information please contact:
Nicole Rößler, Senior Manager MarCom, Aftermarket EMEA, NGK SPARK PLUG EUROPE GmbH
Harkortstr. 41, 40880 Ratingen, Germany, AG Duesseldorf HRB 43118
Tel: +49 (0)21 02 974 102 E-mail: email@example.com