TECH
FULL FLOW
INSTALLING FLEECE PERFORMANCE ENGINEERING’S POWERFLO IN-TANK LIFT PUMP
TEXT AND PHOTOS BY MIKE MCGLOTHLIN
This ‘12 Ram will be graced with one of Fleece’s cutting-edge products: its PowerFlo in-tank lift pump module. Designed as a direct replacement for the factory sending unit assembly—and with the goal of supporting higher horsepower while maintaining quiet, air-free operation—the PowerFlo lift pump is ground-breaking on multiple levels.
From a reliability standpoint, the pump’s active fill technology keeps air from ever infiltrating the fuel system. From an operational standpoint, its in-tank design makes it less audible than external (chassis- mounted) lift pumps. From a performance standpoint, the system employs two proven, OEM-style gerotor pumps, which provide a combined flow of nearly 170 gph at rated pressure—enough to support 800-rwhp. And from an installation standpoint, there are no holes to drill in the tank, no fuel lines to run, and no wires to splice. The install is as easy as it gets.
While the factory lift pump on our ‘12 6.7L Cummins was keeping up with the stock injectors and CP3 just fine (despite us running aftermarket tuning aggressive enough to kill the 68RFE transmission), we have a goal of eventually matching the recently-installed S467 with a set of 100-percent over injectors and a stroker CP3. So, there was no time like the present to lay the groundwork for our future, 750-rwhp endeavor by installing Fleece’s Power-Flo lift pump. After less than three hours of labor, the PowerFlo unit was in place and the truck’s lowpressure fuel system had effectively been prepped for its pending injection system upgrades.