In the pursuit of piecing together the perfect daily driver, many of us allow the end goal to control the course of the build. We get so caught up in the final horsepower number that we neglect to realize how well the truck performs after incremental yet completely necessary mods have been made. Not so for Jake Bosie and his ’12 Ram 2500. In the midst of making the necessary foundational upgrades that would help his fourth-gen support 700-750 hp, he took stock of the setup he’d already come up with: a dyno -proven 576hp, 1,166 lb-ft everyday driver. Though not perfect, so far it’s gotten him to work, towed anything he’s asked it to, and even played on the street. Most impressive, over the course of the past three years the factory 68RFE hasn’t skipped a beat.
100-PERCENT STOCK CUMMINS—FOR NOW
To date, the 112,000-mile 6.7L Cummins hasn’t been touched other than a quick running o f the valves. And even though Jake knows the four-digit torque number the truck is making and the 40 -plus psi of boost he’s cramming into the engine could eventually yield a blown head gasket, he doesn’t lose sleep at night over it. Should the head gasket go while he’s still rounding up the funds and parts that will complete his 750hp recipe, the head will be pulled, cut for fire-rings, and cinched back down with ARP studs.
The first thing you notice under the hood of Jake Bosie’s ’12 Ram is the fact that the stock Holset HE351VE has been replaced. Thanks to Fleece Performance Engineering’s second-gen turbo swap kit and the 6.7L Cummins’ ability to spool an S400 with ease, the decision to run an S467 was a no-brainer. Internally, the Cummins sports the same internals it left the factory with 112,000 miles ago.
At the heart of the Fleece second-gen turbo system sits a BorgWarner S400. Equipped with a 5-inch (od) compressor housing inlet to accommodate the Fleece 5-inch ManTake intake system, it features a cast compressor wheel with a 67.7mm inducer. The popular 74/83mm turbine wheel is employed on the exhaust side, which makes use of a spoolfriendly .90 A/R housing. By starting with a charger that supports as much as 750-rwhp right out of the gate, Jake saved himself the trouble of having to upgrade turbos later on.