GM Family 2 Engine Turbo Project     The Family II is a straight-4 piston engine that was originally developed by Opel in the 1970s, debuting in 1979. The project engine is a Holden built C18LE, a variant with 8-valves driven by an over-head cam, with a cast-iron block and alloy head. The C18LE has a compression ratio… Read More


It’s all about the airflow!   Rabbit ECU controls the fuel flow into your engine by way of first calculating the air mass flow through the intake ports. Dividing this air mass flow rate by the target AFR gives the desired fuel flow rate. This is in turn divided by engine speed and injector flow… Read More