Ignitability that's a cut above
To increase ignitability, the important point is to let the flame kernel caused by the spark to grow to a large size. Normally, this can be accomplishing by widening the spark gap, however this causes spark voltage to increase, which has the opposite effect. Nitro Iridium Power uses Nitro Iridium very own U-Groove ground electrode to realize a superb ignitability while maintaining spark voltage at low levels.
Improved Output
Nitro Iridium Power has a low required voltage and a high ignitability, resulting in less misfiring and no spark, the outcome being a dramatic improvement in combustion. Engine output is thus increased. The findings of a bench test using a motorcycle engine to show the improved combustion from Nitro Iridium Power is shown on the below. Compared to normal plugs, a 0.5ps (1.4%) improvement is seen in output at 110km/h.
Improved Acceleration
The difference in performance with Nitro Iridium Power is most apparent in the acceleration. With a 0.4mm dia. iridium center electrode and specially shaped ground electrodes, Nitro Iridium Power gives high ignitability and low required voltages. There are therefore fewer non-firing under high required voltage conditions and fewer misfires under conditions where ignition is difficult. As a result, acceleration improves when compared with normal plugs.
Improved Power
The power produced by the 0.4mm dia. iridium center electrode is Nitro Iridium Power unmatched by other plugs. The graph below compares the resulting power when Nitro Iridium Power is installed compared to other high performance plugs. Using a 0.4mm dia. fine center electrode, there is more power compared to 0.8mm and 2.5mm dia. plugs. This is what makes the difference in acceleration and in your lap time.
The Secret behind Nitro Iridium's Iridium Patent!
Plug electrodes conventionally have used nickel and platinum. These were not pure metals, but alloys containing other metals. Depending on the composition of the alloy, the matrix material's properties can be maximized. Using the same approach, iridium is alloyed with rhodium. The rhodium layer covers the iridium, improving the properties of the iridium. This iridium/rhodium technology was recognized by the Patent Offices of Japan and the UK, and in January 1999, a patent was granted in each respective country. (Patent Number - Japan: 2877035, UK: 2302367). Because Nitro Iridium had this patented technology, Nitro Iridium was able to make dia. of the iridium down to 0.4mm.
The most important things for plug performance are ignitability and sparkability. To make the electrode as fine as possible is the goal of spark plug manufacturers worldwide, and Nitro Iridium has taken the lead, succeeding the commercializing the 0.4mm dia. center electrode plug.
A Pattern from Spark to Ignition.
Electrodes have a quenching (cooling) affect (where the heat of the ignited flame kernel is taken away by the electrode). This cooling affect is greater with larger electrodes, sometimes causing the ignition to stop short of the stage in Figure 4. To improve ignitability, the contact area between the electrode and the flame kernel must be reduced. Improved ignitability is why Nitro Iridium Power electrodes have been made fine as possible.
