The SM4 is our latest model ECU.

This ECU has many features which allow it to be setup to suit various types of engine configurations. It has very flexible options over how the inputs and outputs are controlled, and allows the user to design their own functions to control all sorts of devices. Precise control of injectors and ignition angle are guaranteed at very low or high RPM or manifold pressures. A very high level of protection from interference and tolerance of trigger input errors has been built into this ECU, ensuring a smooth running engine even under the most demanding conditions.

Variable camshaft control for up to two camshaft. Control of camshaft position is very precise and time taken to advance from full retard to full advance is less the 1 second. Support for most VVT and VANOS systems.

Closed loop control of idle speed and boost pressure makes for a "factory" idle speed stability, and precise control of boost pressure. Boost control can be setup to provide a different boost in each gear.

The optional internal knock control module gives one of the most advanced aftermarket knock control available. Knock control is user definable to use either fuel enrichment or ignition retard or a combination of both the control only the cylinders that have knock.