In the world of competition diesels, it doesn’t get any more extreme than this. Cutting-edge technology, engines living at 150-psi of boost and thinking outside the box are the norm here, and (thankfully) there are no indications that that will change any time soon. So come along for the ride below. From truck and tractor pulling to drag racing to dyno cells, we’ve got 4,000hp fuel systems to tell you about, single, triple and sextuplet turbo setups making insane boost and some engine eye candy you won’t find anywhere else.
BIG Triples
There are about a thousand cutting-edge things to point out on Shane Kellogg’s Super Stock pulling truck, but we’ll start with the giant turbos hanging off the side of his competition Cummins. Sourced from Columbus Diesel Supply, the two Holset based chargers on the left represent the first stage in this three-turbo, two-stage system, and act as what is often referred to as the atmosphere chargers. Out of view, a high-pressure turbo (also m