Redstone engines never explode in current BC.
Plus with the new power transport pipe you can abuse the hell out of the new system
right now i've got a 12x12 "power grid" of redstone engine to power any device that needs powering. (via a power transport pipe)
It's been powering a refinery for quite a long while now refining a bunch of fuel pumped out. previously it was powering the pump. Will probably hook it to a quarry next after the oil's done refining. (the refinery is *SLOW*, let it run overnight twice and it's still got quite a bit to go)
what's the quarry going to feed? my recycler array, of course. (after suitable sorting so only the cobble and dirt heads into the array) Of course any metals will be dumped straight into central processing and from there dumped into a chest under my base. (item transport pipe)