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.
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.
for NISSAN VG ENGINE
SF-DIS-009
【Main Application】
CZ32/GCZ32 FAIR LADY Z etc
for NISSAN RB ENGINE
SplitFire Super Direct Ignition System was developed to improve power
of ignition system adopted in the domestic high power engine.
The further detailed analysis of the latest ignition system was conducted. The
structure of coil pack adopted for each cylinder was drastically modified. It
enables to provide a constant, stable voltage and complete combustion. Also it
improves power, torque and combustion efficiency. Further the special circuit
adopted for this unit helps to start engine at low voltage. It provides the excellent
starting performance even at lower voltage. It also eliminates noise and RFI
(Radio Frequency interference) for audio equipment because plug wires were eliminated.
This ignition system is effective for not only normal cars but also hard tuned
cars and brings out the potential of cars at street and racing scene.
Basic Component Parts
Ignition Coil/ For Spark Plug/ Terminal Nut (For JIS/ ISO only SF-DIS-001)
SF-DIS-001 |
SF-DIS-005 |
SF-DIS-008 |
for NISSAN SR ENGINE
Genuine coil packs used for NISSAN SR20DET were not satisfactory to provide
enough energy because of the design restriction.
"SplitFire Super Direct Ignition System" can provide 150% of
electricity to spark plug compared to the genuine coil at all RPM by the
modified structure of coils. It also improves power, torque and combustion
efficiency by complete combustion.
The special circuit adopted for this unit helps to start engine
at lower voltage. It provides the excellent starting performance
even at lower voltage. It also eliminates noise and RFI (Radio Frequency
Interference) for audio equipment because plug wires were eliminated.
By conducting radical research and development of ignition system of the
SR engine, SplitFire Super Direct Ignition System enabled to improve the
performance of engines of not only normal cars but also hard tuned cars.
For responding customers' eagerness, we added SplitFire Direct Ignition
System for NISSAN SILVIA CA Engine in our lineup.
Basic Component Parts
Ignition coil/ Control Case/ Main Harness/ Sub Harness/ set of screw and spacer
SF-DIS-004 |
SF-DIS-007 |
OPTION PARTS
This is a conversion harness for the installation of SplitFire Super Direct Ignition System with an old type NISSAN RB engine. Make sure to check the application table below.
For RB20DE, RB20DETOption Parts Application Table
| Car Make | Car Model | CC | Engine | Year | |
| 01 | SKYLINE | HR31 | 2000cc | RB20DE | 1985.8~1989.5 |
| 02 | HR31 | 2000cc | RB20DET | 1985.8~1989.5 | |
| 03 | CEFIRO | A31,CA31,LA31 | 2000cc | RB20DE | 1988.9~1990.8 |
| 04 | A31,CA31,LA31 | 2000cc | RB20DET | 1988.9~1990.8 | |
| 05 | LAUREL | HC32 | 2000cc | RB20DE | 1986.10~1989.1 |
| 06 | HC33 | 2000cc | RB20DET | 1988.12~1991.1 | |
| 07 | HC33,HCC33 | 2000cc | RB20DET | 1989.1~1991.1 | |
| 08 | FAIRLADY Z | PZ31,PGZ31 | 2000cc | RB20DET | 1985.10~1989.6 |
>> It's a Japanese page.
>> It's a English page.