Board Thread:Questions and Answers/@comment-178.116.142.88-20130219121620/@comment-1661144-20130219131728

i don't think redstone engines can be linked with conductive pipes anymore.

It used to be possible, but required ludicrous amounts of those engines to get any significant Mj generation (they produce 0.05 Mj/tick)

edit: straight from buildraft wiki:

As of 3.2.2, redstone engines can no longer be daisy-chained or hooked up to conductive pipes.