Tennessee has become quite the hotbed for high-powered, twin-turbo'd Dodges these days. Recently, we ran into this '07 Ram 2500 Mega Cab owned by Jason Epling and quickly realized the truck's tough looks were backed up by some serious dyno numbers. When we heard the truck laid down 824 hp and a staggering 1,490 lb-ft of torque, Jason's rig had our undivided attention.
With just 34,000 miles on the odometer, it didn't take long for Jason to accomplish what he set out to do-build a high-powered, daily driven work truck. "They told me I couldn't make 800 hp and still daily drive it," Jason says. But, like many others, Jason will be shooting for more power in the future, which includes breaking the 1,000hp barrier on fuel only.
In the power department, the big Mega Cab got a helping hand from MCN Diesel in Knoxville, Tennessee. From the bottom up-and with big power in mind-the Cummins benefits from a Helix 2 camshaft, a fire-ringed head, ARP head studs, and a set of Sportsman valvesprings. For fuel, a FASS 200 lift pump sends fuel to PPE Dual Fueler CP3 injection pumps, which distribute the high-pressure diesel into a custom set of 200hp injectors that MCN Diesel made by way of electrical discharge machining (EDM).
Cleaning up all that fuel is a big S400 turbo over a massive S510 with a 95mm compressor wheel. Jason told us the combo, also built by MCN Diesel, spools surprisingly well, and makes 80 pounds of boost. Smarty TNT revo programming bumps up the common-rail's power electronically. A Banks intercooler keeps EGTs cool, and exhaust gases make their escape through a big, 5-inch system.
With this kind of power on tap, you can imagine how difficult it would be to not showcase it, so Jason started hooking to the sled at local brush pulls. The reason behind only pulling locally is directly linked to the fact that he runs twins. And, due to the obvious advantage, most sanctioning bodies won't allow twin-turbo trucks to pull in single-turbo, street stock-type classes. But, being that East Tennessee is saturated with twin-turbo'd Dodges, Jason told us there are always 8 to 10 trucks pulling against him, which keeps it pretty competitive. He then added that the big, black Dodge usually finishes in the top three at any given brush pull.
 Wanting to do something unique,...  Wanting to do something unique, Jason Epling went with a big, S510 BorgWarner, which houses a 95mm compressor wheel as the low-pressure turbo. An S400 serves as the high-pressure unit. Mark Newton at MCN Diesel put a lot of effort into making this twin setup fit. |  Keeping close tabs on the...  Keeping close tabs on the twins, Jason said he typically sees 80 pounds of boost from the setup under full throttle. |  Squeezing the twins in required...  Squeezing the twins in required relocating the overflow reservoir and reworking the air conditioning. Also unique is how the compressor side of the secondary charger faces the firewall. This was done to reduce the length of the hot pipe and keep drive pressure up for adequate spooling. |
 The 6-inch Tuff Country suspension...  The 6-inch Tuff Country suspension lift puts the truck on steroids aesthetically, but isn't overwhelming. And despite being lifted, Jason still claims to get 17 mpg. |  This 10-inch drop hitch shows...  This 10-inch drop hitch shows Jason's Dodge hasn't sacrificed any utility, as he tows a box trailer daily. And, proving that his rig is more than just a dyno melter, he towed a 28-foot gooseneck trailer and a Quad Cab Dodge work truck nearly 600 miles to Sun Coast Converters' annual open house and the Redneck Nationals back in February. |  PPE Dual Fueler CP3 injection...  PPE Dual Fueler CP3 injection pumps share the fuel load that needs to be delivered to the common-rail's injectors. The 5x12 injectors (five holes at twelve-thousandths of an inch) were built by MCN Diesel, and in conjunction with the twin CP3s, added nearly 250 hp to the equation. |