NGK Iridium IX Spark Plugs!
Hi guys,
has anyone ever had any experience whatsoever with iridium spark plugs??
NGK IRIDIUM SPARK PLUGS FOR PULSAR 150/180/200/220 DTSI.THE WORLD’S BEST SPARK PLUG.Price:Rs. 550
When it comes to spark plugs, NGK is the World Leader.
1966 – NGK Spark Plugs (U.S.A.), Inc. was established as a subsidiary of NGK Spark Plug Co, Ltd., of Japan ( www.ngkntk.co.jp ).
Iridium IX
• Fine Iridium tip ensures high durability and a consistently stable spark
• Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines
• Trivalent Metal Plating – superior anti-corrosion and anti-seizing properties
• Outstanding acceleration, high fuel efficiency and durability
• Ultimate design, technology and performance.
Spark Plug Basics
The primary function of the spark plug is to ignite the air/fuel mixture within the combustion chamber under any operating condition.

Spark plugs must provide a path and a location for electrical energy from the ignition coil to create a spark used to ignite the air-fuel mixture. A sufficient amount of voltage must be supplied by the ignition system to spark across the spark plug gap. This is called “Electrical Performance.”

The spark plug firing end temperature must be kept low enough to prevent pre-ignition, but high enough to prevent fouling. This is called “Thermal Performance”, and is determined by the heat range selected.
Plug Replacement Time:
Unfortunately, there is no fixed answer to this. As spark plugs grow older, they lose their sharp edges as material from the centre and ground electrodes are slowly eroded away. As the gap between these two points grows, the voltage required to bridge the gap increases proportionately. Even the best ignition systems will be strained to supply enough voltage to completely burn the fuel. It is at this point, that the spark plug would need a replacement.
Replacing worn out spark plugs with new ones (with sharp new edges) effectively restores the ignition system’s efficiency. Misfires are reduced, power is restored, economy of operation is enhanced and emissions are reduced.

Performance gain after installing the plug: A common misconception is that changing spark plugs will result in a large power increase. In most cases, removing even seriously worn out spark plugs will only result in tiny power gains, typically about 1-2% of total engine output.Many people think that simply supplying more spark to the firing tip can and will combust more fuel.

to be continued.

Part 1

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