This steam engine is made up of two smaller engines designed by CrusaderZ, I've augmented it by building a mirrored second version and connecting the two inputs and outputs, aside from water which you will have to build as I did, or alternatively create your own input system for it if you like. It produces 260k stress units at a speed of 128, it can be augmented even further to 256 by adjusting the rotation speed controller at the bottom back of the build.