![[Ｖ]カットが強力なスパークを放つ！パワーアップを実現するハイパフォーマンスプラグ、スプリットファイア・シリーズ](../../images/h3_1_di_en.gif)
Drastic improvement of ignition system and higher performance....
While various high performance car parts such as computer, muffler and turbine are available in the market, there were no drastic improvements for ignition system. It was limited to tune the mechanical ignition system which distributes electricity from the coil to each spark plug through spark plug wires. Then Direct Ignition System was designed. This is the system that ECU directly sends the electric signal to each coil on the top of each cylinder for ignition. The best ignition timing is obtained by the sensor and is controlled by ECU and fuel injection system. It makes an ideal condition for ignition and enables to provide a constant and stable electric power at all RPM. Thanks to the advent of an original ignition system, ignition system made tremendous progress. However, this system left a weak point. That was a reduction of secondary voltage at high RPM. Because of the restriction in design, genuine coil packs were not able to produce enough energy.
BMW dynapack test data
Comparison of the ignition system
Conventional type of ignition system distributes electricity from an ignition coil to each spark plug through spark plug wires. On the other hand, direct ignition system has each coil pack on respective spark plugs. So an increased voltage is provided to each spark plug directly from respective coil pack. The main difference between plug wires and direct ignition system is the distance between coil pack and spark plug.
In case of Plug Wire System, the voltage is increased by one coil pack and sent to respective spark plug through distributor and individual plug wires, and therefore, the voltage will be decreased at each process before the electricity reaches to spark plug. But, incase of Direct Ignition Systems, each coil directly sends an increased voltage to spark plug without any loss of electricity. Moreover, the best ignition timing is gained by computer and is controlled by ECU along with fuel injection system. The strong point of Direct Ignition System is to provide an accurate ignition and to maintain stable secondary voltage at high RPM.
SplitFire Super Direct Ignition System is High Performance Ignition System.
Compared with the standard coil, SplitFire Direct Ignition System has an increased wire turn of coil, and high quality materials are used for the parts to provide high performance.
The left side photo shows a comparison of spark at standard ignition system and at SplitFire Super Direct Ignition System.
The difference of spark between Direct Ignition System and Standard system is very clear. This difference brings great advantage for sports driving. It helps complete combustion to improve combustion efficiency, and also increases power and torque. SplitFire Super Direct Ignition Systems are specifically designed for limited engine models, and they are all bolt-on type for easy installation.
The special circuit adopted for this unit helps to start engine at lower voltage. It provides the excellent starting performance even lower voltage. It also eliminates noise and RFI (Radio Frequency Interference) for audio equipment because plug wires were eliminated. Drastic improvement for ignition system! Excellent Power and Response! Feel the efficiency of the innovative ignition tuning!
【NEW】for BMW
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