Installing H&S Motorsports’ Low-Pressure Fuel System For The 6.7L Power Stroke

More Pressure, Power, and Peace of Mind

Mike McGlothlinPhotographer, Writer

Ford’s 6.7L Power Stroke has proven itself as a reliable workhorse engine. Many owners have even compared it to the 7.3L—the initial bearer of the Power Stroke name that was revered for its 500,000-mile durability. However, the 6.7L Power Stroke brings something to the table that the 7.3L never could: the ability to make big horsepower, easily. Thanks to its Bosch high-pressure common-rail fuel system, the piezoelectric injectors employed in the 6.7L are capable of supporting an incredible 650-700 rwhp without modification. Unfortunately, the performance capabilities of the factory turbocharger and both the high- and low-pressure fuel systems don’t allow the full potential of the injectors to be realized.

After replacing the restrictive factory turbo with a higher-flowing fixed-geometry BorgWarner S366 SX-E and adding a second injection pump to the mix, the owner of the ’11 F-250 in this article was well on his way to the 700hp mark—or so he thought. During the initial testdrive, a low fuel pressure warning came across the dash, indicating that the OEM lift pump’s ability to keep up with the demand of the dual injection pumps wasn’t up to snuff. Luckily, H&S Motorsports offers a low-pressure fuel system to address this exact issue. During the course of installing H&S’s comprehensive system, we took note of all the fine details that set this kit apart from other aftermarket offerings. Read on to see why this is the ultimate fuel system for the 6.7L Power Stroke.

Justifying the $1,299 Cost of Admission
*200 gph lift pump—this system has no problem supporting well north of 700 hp
*Adjustable fuel pressure regulator and fuel gauge are included
*In CP4.2/CP3 dual injection pump applications, the factory CP4.2 pump sees slightly more supply pressure than the CP3 (just as it should)
*Direct replacement, bolt-in system (no drilling)—consumes roughly the same space as the factory assembly
*You DON’T have to drop the tank in order to install it
*Retains all of the factory fuel supply line (no cutting or splicing is necessary)
*No nest of wires to install—the only electrical work mandates you tap into the factory lift pump’s source for power