Two custom-built, non-wastegated HX82 turbos from Columbus Diesel Supply allow the truck to make some very serious horsepower. Cory stated that the compound setup makes an insane 170 pounds of boost. With that much pressure, a serious water injection system was needed to keep things cool. The system is made up of a Vickers pump with a Simpson valve to regulate the water injection timing, which feeds through a total of 12 nozzles. Thanks to the water injection, exhaust gas temperatures stay close to 1,300 degrees during a pull. All of this adds up to an engine that Cory says turns 6,000 rpm and makes more than 1,900 horsepower. He then modestly added, "it makes some power, we broke three billet connecting rods this year."
A Waterman fuel supply pump feeds a six-cylinder Sigma fuel injection pump from Columbus Diesel Supply. And, as Sigmas can handle up to 1,600 cc of fuel, the current setup may still have plenty of room for adjustment. Columbus Diesel also built the massive John Deere injectors Cory is running. A custom-built, four-stage dry sump oil system keeps the engine oil separate from the turbo's oiling system in case of an operating failure. A custom aluminum oil pan from Woodruff holds more than seven gallons of oil, and keeps oil away from the crank. A trick sight glass on the pan allows Cory to check the oil after each pull for possible head problems.
 The sight glass on the aluminum...  The sight glass on the aluminum oil pan is a good way to keep tabs on the oil's condition without draining it. |  The infamous Sigma fuel injection...  The infamous Sigma fuel injection pump from Columbus Diesel Supply feeds the fuel this beast needs to make more than 1,900 horsepower. |  Don't let the 320-foot, Second...  Don't let the 320-foot, Second Place pull at Scheid's Diesel Extravaganza fool you, this truck had a lot more to give. We think with better traction, Cory would've pulled the sled on home to Ohio. |
 The only thing we could get...  The only thing we could get Cory to tell us about the dual HX82 compound-turbo setup was that the high pressure turbo's inducer is more than 3.3 inches in diameter, and the low pressure turbo's inducer is more than 4.2 inches in diameter. The two chargers combined make 170 pounds of boost. |  Although no engine dynamometers...  Although no engine dynamometers are designed specifically for insane horsepower diesels, the finished engine put out an impressive 1,903 hp at 5,300 rpm on J. Fink Equipment's dyno in Polk, Ohio. And, while the finished engine doesn't have a set price tag, Woodruff mentioned that Cory's engine cost well over $65,000 to build. |  The reservoir on the right...  The reservoir on the right supplies the massive turbos with all the oil they need, and the reservoir on the left serves as a catch-can for the engine oil. The turbo oil is kept separate from the engine oil so, in the event of a failure, it doesn't take everything out with one shot. A gear-driven, four-stage Moroso dry-sump oil pump maintains oil pressure, and ensures that all oil is scavenged from the massive oil pan. |