WITHOUT Tachometer output
WITH Tachometer output
A programmable ignition is extremely valuable in repair work because it fits a wide range of bikes.
It’s especially useful if the original part has been discontinued or is overpriced.
And of course it is required if you want to tune your engine.
- Wireless Programmable TCI.
- Suitable for ONE or TWO* cylinders
For [2 strokes engines] and for [4 strokes engines with wasted spark*]
* On 4stk engines with 1 pickup on the crankshaft, one spark occurs at the compression stroke and one at the exhaust stroke.
Firing in the exhaust stroke is a wasted spark. Hence the name…
- Easy programming via WiFi connection.
- You need a simple web browser on any smartphone or laptop.
- Compatible Windows, Android, Mac, Linux
- 80MHz MicroController control unit
- Firmware included
- Non volatile configuration
- One programmable ignition timing curve.
- Rev from 10 to 30,000 RPM.
- Adjustable timing in 13 steps from 500 to 20,000RPM.
- 0 deg advance from 1 to 500 RPM. (To avoid kickback)
- Hard rev limiter.
- Legal Temporary rev limiter.
- Live Display of RPM and Timing via Wifi.
- 1 input for an inductive pickup (VR).
- It is possible to use Hall Effect Sensor or Points (An external resistor is required)
- Pickup polarity can be set to Positive, Negative or Automatic detection.
- 1 output for an INDUCTIVE coil type from 1.5ohm to 5ohm.
- 1 input for Kill switch.
- 1 output for 12v Tachometer signal.
(TCI cannot work with CDI coil)
- IGBT Coil driver
- Coil current: Max 15A
- Coil Over Voltage: Max 430v
- Coil protection: shut off after 1sec if there is no pickup signal.
- Power supply voltage: 12v battery (DC 10 to 16 volts).
- Quiescent current 30mA
- Protected against reverse supply voltage.
- Dimensions: 100 x 60 x 25mm (3.9 x 2.4 x 1inch)
- Plastic box potted for Electrical insulation, Protecting components from mechanical shock and vibration, thermal shock or moisture.
- 15cm(6”) 1.5mm2(16AWG) wires soldered with 6.3mm automotive female connectors.
- Made in France.
If there is one separate pickup:
=> This TCI works.
If there are 2 separate pickups (one for low RPM and one for High RPM):
=> This TCI works and uses only the High RPM pickup.
If the engine works with Missing Teeth:
=> This TCI will NOT works
* Twin-cylinders at 360° crankshaft angle:
The engine works with WASTED spark.
If there is ONE twin coil:
=> This TCI works.
See: TCI compatibility
Remember that ignition coils are different from TCI to CDI systems.
– CDI coils have low inductance and an impedance of around 0.3 to 0.8ohm
– TCI coils have higher inductance and impedance of around 1 to 5ohm
(1ohm for electronic ign./ 3ohms for transistorized ign./ 5ohms for points ign.)
PickupClick here for more info
A pickup (aka: VR, Variable Reluctor, Reluctor) is a sensor with one signal and one ground line.
It consist of a wire coiled around a magnet. When a ferrous object passes by the magnet, the magnetic field is modified and a voltage pulse is generated in the coil, resulting in a sine wave.
– 1 input for inductive pickup with 1 signal per crank revolution.
– Pickup must put out 3 to 30Vac
– Points, reluctors, Hall sensors, optical sensors can also be used as long as they give only 1 pulse per revolution. They may need an additional pullup resistor.
– 3 wires digital Hall effect sensors need an external pull-up resistor. The default voltage output is equal to Vcc (+5v to 24v). When a magnet passes in front of the sensor, the output voltage goes low and the ignition will detect the RISING edge meaning the trigger moment will be when the magnet LEAVE the sensor.
– This TCI works with 1 pickup and 1 reluctor (the metal strip on the flywheel) [A,B].
– This TCI works with 2 pickups and 2 bars [E,F].
– This TCI DOES NOT work with 1 pickup and a multi-pulse pickup (ie 2 reluctors on the flywheel) [C,D].
– This TCI DOES NOT work with 1 pickup and a missing tooth flywheel [G].
Pickup PositionClick here for more info
“Pickup Position” is the number of degrees between the very first pulse from the pickup and TDC
To be able to provide the largest advance timing (Example 36° @ 4500rpm) the pickup MUST send a trigger signal BEFORE the piston reaches 36° before top dead center (BTDC).
The “Pickup Position” on the Yam XT600 is 50°. Many Yamahas have a “Pickup Position” of 72 degrees.
This “Pickup Position” is dependent on:
– Where the pickup is mechanically located with respect to TDC?
– Where is the flywheel’s bar located?
– How long is the flywheel’s bar?
“Pickup Position” AKA “Max Advance” = “Base Advance” + “Flywheel’s bar Length”
“Base Advance” value sometime appears is User Manuel.
Length of the flywheel’s bar can be measured this way.
Pickup PolarityClick here for more info
When the bar/magnet on the flywheel passes in front of the pickup, the pickup generates two pulses of OPPOSITE polarity.
A pickup has 2 wires.
– If you ground wire number 1, wire number 2 will put out a Positive pulse first when the rising edge comes, then a Negative pulse when the falling edge leaves. I call it PN.
– If you ground wire number 2, wire number 1 will put out a Negative pulse first, then a Positive pulse. I call it NP.
Check the polarity of the pickup (Negative then Positive/NP or the opposite PN) with a Needle galvanometer (in milliAmp position) while kicking.
For a better understanding, this video can help.
Hall Effect Sensor
The ignition can use 3 wires Hall sensors.
Models : Hamlin 55100, Allegro A1101-A1104, Allegro old 3141-3144, Honeywell SS495, SS49E etc…
Pullup resistor: 370ohm (270 to 1200ohm)
Temporary Legal Rev LimiterClick here for more info
If the Kill switch is switched ON then OFF once during the first 30 seconds after the engine starts, a Temporary Rev Limiter will allow a maximum of 3500RPM for the current run.
After 30 seconds, Kill switch will operate normally and stop the TCI.
The TCI runs without restriction after the bike has been stopped and restarted by the Master Ignition Key.
In countries where 50cc motorcycles are highly restricted, the bike appears to be legal in the event of a control…
It can also be useful if a rookie rider is trying out the bike.
Live Display of RPM vs Timing via Wifi
For diagnostic or tuning purpose, it’s possible to live view RPM and Timing in degrees BTDC on a remote PC connected through Wifi: Video
Because of the impact on CDI performance, please disable this function when you are done!
The last RPM value you enter is the “rev limit” that stop all sparks.
How To setup
To program the ignition, please Print and follow this procedure: Setup Ignition box.pdf
– For test only. Useful to test the ignition box, coil, sparkplug(s).
If “Auto-Spark” mode is set to 1,2,3 or4 during Setup then once the TCI is powered on, it automatically drives the coil at 300 to 10,000RPM without the need of any pickup.
0 = disable.
– Only for testing purpose. This function will fire a spark as soon as a pickup pulse is detected, bypassing the advance timing.
/!\ Don’t use the function on a running engine otherwise the spark will append way too soon and could damage the piston !!
But along with points and mechanical advance system, TCI in Bypass Mode is acting as a simple Transistorized Ignition.
Diagnose with LEDClick here for more info
– If the box is started in RUN Mode: The Led will turn steady ON until a pickup is identified if Pickup is in “Auto” Mode
or flash 1 time then stays Off if Pickup is forced “PN” or “NP” Mode.
The led blinks in time when a pickup signal is detected.
The led turns off when the Maximum RPM is achieved.
The led turns off when the minimum RPM is achieved.
– If the box starts in SETUP Mode : Led blinks 3 times before flashing once every 5 seconds.
The led flashes briefly when data arrives through WIFI.
TCI ignitions need an INDUCTIVE coil type for TCI (Not a CAPACITIVE coil for CDI) with Primary resistance from 1.5ohm to 5ohm like: IMFsoft, Ignitech, Ignitech, AEM.
Why CDI coils don’t work with TCI ignitions?
PHOTOSClick here for more info
VERSIONSClick here for more info
- Version v11r0c0:
- First version
- Version v11r1c0:
- [soft.] Improvements
- Version v11r2c0:
- [soft.] Improvements
- Version v11r3c0:
- [soft.] Improvements
- [soft.] User can choose RPM in AutoSpark mode
- Version v11r4c0:
- [soft.] Display RPM/Timing on Wifi