BMW 1970 – 1979
The Compass – a high-performance ignition to suit your 1970s BMW.
The Compass system replaces your points ignition and delivers precise timing, easy starting, improved throttle response and an accurate advance curve. The system is called the Compass because the triggering rotor has two points like a compass! It’s this unique shape of the Compass rotor and the accurate CNC machining process that gives the required timing stability and accuracy you would expect from electronic ignition.
The control box is completely new and has some unique developments on the inside including high levels of voltage spike protection.
Events such as a battery becoming disconnected while the engine is running can lead to voltages spiking outside of the normal range and must be considered in case a fault does occur.
- Reverse polarity protected
- Spike protected to hundreds of volts
- Continuous overvoltage protected
- Pickup inputs protected
Reverse polarity is blocked out by a diode on the power input and the pickup inputs can tolerate full battery voltage should a connection go astray. It’s designed to take anything the bike can throw at it but in case something extraordinary does happen, the box is repairable thanks to an easily removable sealing compound.
There’s no need to replace your ignition coils as the Compass Ignition is compatible with the original Bosch 6-Volt coils. But if you want more spark energy and improved performance from your ignition try the Dual Output High Performance Coil (IGC-3030).
While cranking with the electric starter, the Compass skips the first compression stroke to allow for maximum crankshaft RPM and momentum when it starts sparking – especially important on a high-capacity engine.
The tiny control box (made in Adelaide SA) is easy to hide under the fuel tank and it’s fully sealed against vibration and moisture. It uses a high-speed processor to generate the timing required for coil saturation and the advance curve without delays or jitter.
Improved reliability, maintenance free and better performance in an easy to install package – the Compass System for your BMW ticks all the boxes!
Delivery content: 1 x Compass Ignition system