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2. Spark plug - Wikipedia

   en.wikipedia.org/wiki/Spark_plug

   Spark plug with single side electrode An electric spark on the spark plug. A spark plug (sometimes, in British English, a sparking plug, [1] and, colloquially, a plug) is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within ...

3. Iridium - Wikipedia

   en.wikipedia.org/wiki/Iridium

   The dominant uses of iridium are the metal itself and its alloys, as in high-performance spark plugs, crucibles for recrystallization of semiconductors at high temperatures, and electrodes for the production of chlorine in the chloralkali process.

4. Wasted spark system - Wikipedia

   en.wikipedia.org/wiki/Wasted_spark_system

   A wasted spark system is a type of ignition system used in some four-stroke cycle internal combustion engines. In a wasted spark system, the spark plugs fire in pairs, with one plug in a cylinder on its compression stroke and the other plug in a cylinder on its exhaust stroke. The extra spark during the exhaust stroke has no effect and is thus ...

5. Talk:Spark plug - Wikipedia

   en.wikipedia.org/wiki/Talk:Spark_plug

   An evolution of the "hotter = better combustion" philosophy, Honda has started equipping its new cars with dual probe spark plugs. The spark gap now separates an iridium probe and a platinum probe, supposedly producing a hotter spark. I believe the idea is to increase the intensity of the spark rather than the quantity of them.

6. Niterra - Wikipedia

   en.wikipedia.org/wiki/Niterra

   Niterra was the exclusive spark plug supplier for the IndyCar Series from 2007 to 2011. Since 2012, the company has only supplied Honda-powered IndyCar Series teams. Furthermore, Niterra supports a couple of teams in racing categories such as MotoGP , Moto2 , Moto3 , [ 24 ] the World Rally Championship , the Motocross World Championship , the ...

7. Mitsubishi 4B1 engine - Wikipedia

   en.wikipedia.org/wiki/Mitsubishi_4B1_engine

   According to Mitsubishi, the new cylinder dimensions contribute to a free-revving character (max power at 6500 rpm), linear power delivery and wide torque curve. Mitsubishi used a timing chain instead of a belt for better reliability and iridium spark plugs to lower emissions and to help extend major service intervals for lower cost of ownership.