Advanced Engine Control Unit
This is a more advanced version of my original engine control unit. It comes with a RPS limiter which can be disabled from the properties menu.
The Throttle Override will also override the RPS limiter and allow the engine to rev up as high as it can go, so beware of overheating.
For smooth operation, ensure that your modular engine setup includes a flywheel of the appropriate size (1x1 flywheel for 1x1 cylinders type deal).