In addition to running twin injection pumps, Barber runs this nasty Mitusa belt-driven lift pump, which flows 240 gallons of fuel per hour and is regulated at 22 psi.
950 Horsepower
So 750 hp is old news you say? Well Tim Barber of TRE Diesel has rattled the rollers to the tune of 949 horsepower and 1,590 lb-ft of torque. How'd he do it? Barber's setup is similar to Spruill's-lots of air and fuel. While he doesn't have any of the trick bottom end mods, Barber's truck did have the head O-ringed, and he also installed an F1 Diesel Helix 2 cam with a set of F1 valvesprings. A set of $1,100 ARP 625 head studs are employed, but that's it for the long block. Airflow is handled by a set of custom twins built with intake and exhaust piping from Maximized Performance. The small turbo comes in at 64mm, the large one at 80mm, and both are made by High Tech Turbo. A Tial 44mm wastegate is used to regulate boost to the large turbo, and total boost ranges from 75 to 80 psi. For fuel, Barber's truck also relies on dual CP3 pumps (PPE) with stock internals. His common rail can spin up to 4,000 rpm because of a TST/TNT stack with the Smarty Race tune, allowing a 4,000-rpm redline. A Snow Performance Stage 2 water/methanol system is used to inject water into the engine, and Barber reported gaining 25 hp on the dyno with water only. While it hasn't been to the track yet, 11s should be no problem for the silver Dodge, and with a larger 88mm turbo on the way, 1,000 horsepower should be possible soon.
Two Dodges, Two Sleepers
We Don't Know What Fast Diesels Are Supposed To Look Like, But We'd never have guessed that either one of these trucks run 11s without popping the hood. Where are the stacks or slicks, or even the flame paint jobs? Both trucks have side exit exhaust systems, and Barber's truck even has the stock wheels. What you can't see is the $5,000 both have in their transmissions to handle this sort of power. Spruill has a full billet Suncoast transmission, while Barber relies on a DTT transmission that he assembled at his shop. Spruill's truck is an '05, while Barber's is an early '04 with the 555 lb-ft H.O. motor. Single turbo or twins, 750 hp or 950 hp, both of these trucks are not to be taken lightly despite their ordinary looks.
Both trucks rely on a simple large conical air filter to make their insane horsepower numbers. | 
Airflow is where the trucks take a different path. Barber uses a more expensive compound turbo setup that produces up to 80 psi, while Spruill uses a single Aurora 5000 at 65 psi. | 
Barber also has an aftermarket intercooler in addition to the twins, and Spruill relies on a stock '06 unit to get the job done. |
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