HPI | Horse Power Ignition
These digital programmable 6V/12V ignitions are mainly used for race engines.
They are mainly used to replace points ignitions (contact breaker)
The advantages are: a very low starting RPM, and huge sparks.

There are two different types:
• The Oscillator type is a CDI (Capacitor Discharge Ignition) - very low power consumption
• The Transistor type is a TCI (Transistor Controlled Ignition) - needs at least 3 amperes

Complete blank set

Common engine configurations
Installation manuals

Under construction
Seperate parts

All parts are seperatly available:
signal discs, baseplates,
CDIs/TCIs, HT-coils...

Click here to see the list.
Blank sets

In most cases you will have to make some adjustments for these sets to fit onto your engine.
Programmable CDI

Draw your own ignition curves, and program them into the CDI.

Available for both types:
Oscillator and Transistor


Yamaha: XT500 (1976-1979)


Yamaha: TX500 (1973-1975), XS500 (1975-1979)


Ducati: Desmo 125 MK3, Desmo 150 MK3, Desmo 175 MK3, Desmo 200 MK3, Desmo 250 MK3, Desmo 350 MK3, Desmo 450 MK3, Scrambler 450 (1969-1976)


Moto Morini: V-Twin Engine (125/250/350/500cc)


Yamaha: XS650 (XS-1) (1970), XS650 (XS-1B) (1971), XS650 (XS-2) (1972), XS650 (TX650) (1973-1974), XS650 (1975-1979), XS650S Heritage (1978-1979)


Ducati: Monster 400 (2004-2008)