February '17

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FEBRUARY 2017 THE SHOP 37 PERFORMANCE increased pressures as the rpms increase. This has been a huge issue with the gerotor pumps—as the pull or rpms go up, the pressures drop off dramatically, which starves the injection pump and injectors. I experienced this with the old mechan- ical OE lift pump when we tried the truck out at the dragstrip. It started out strong, but lagged at higher rpms. I decided to install the smaller Fuelab Velocity 100 pump on my truck. The pump is rated to handle the fuel needs up to 700 hp. Well, my old 12v for the street will never go over that mark unless I make more involved changes to the engine's components such as pistons, head, bolts, gaskets, etc. Yes, all of the items I have added over the past couple of years would add up to more horsepower than that—if I followed all of their combined horsepower increases. But those ratings are only for the most bench test-rated horsepower increases. In reality, they do not add up to what your engine is actually going to produce. Many beginners fall into this falsehood. We see it at the dyno competitions all the time—the beginner gets his printed readout of what his truck is producing in horsepower and torque. Then he goes bal- listic saying the dyno is wrong, because all the performance parts he's added should produce a certain horsepower rating on paper. It never works out that way, but the mod- ifications still provide more power than the truck produced originally. My truck feels powerful, but I am a realist and know that it is nowhere close to 700 hp. SIMPLE STEPS While the Fuelab Velocity 100 is more than enough for my truck, the company also offers the Velocity 200 that can fuel street trucks up to 1,000 hp without adding an external regulator to turn them up even more. The 200 and 100 numbers refer to the gallons-per-hour rating for output volume to the diesel injection pump. Installation only took about 45 minutes, even with us messing with the photos and shop-talking at Gilmore Performance in Missouri. Matt Gilmore is the owner and has put many lift pumps of all kinds on Dodge diesels. First comes a quick disconnect of the existing fuel line from the tank right above the rear axle frame. Then attach the bracket and pump to the inside frame on the driv- er's side of the truck. Attaching the wiring harness is an easy Make sure to get the positive and negative wires in the proper sides. Adding Loctite on the pump mount plates is a must for us truck owners who run over a few things. Matt Gilmore of Gilmore Performance mounts the pump and bracket to the driver's side frame in front of the fuel tank on the inside frame.

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