You can be on the dyno tickling the keys of your laptop in search of power. When you get to a point where your changes don’t have the expected effect… and in some cases the engine can run lean at the top end… you know something is off. What is going on? How is the power being robbed? Typically, the culprits can be reduced to either the injectors, fuel pump, or the ignition system. An ignition problem is usually easy to spot as this condition can often be heard and usually represents itself as an erratic power curve on the dyno chart. You should have an idea if you are maxing out your injectors based on their flow and your power expectation. Of course, they could be bad. When the engine sounds smooth and the curve is steady but there just isn’t power where it’s supposed to be, a failing fuel pump can be the cause. If you’re pushing a stock fuel pump RC Engineering says, “once you get to a point in engine modifications where more than a 20-percent increase in fuel flow is required from an electronic fuel injection system, it’s time to consider fuel pump modifications or a fuel pump change.” The conundrum here is determining if the fuel pump in question is capable of delivering adequate fuel flow at the proper pressure and injector duty cycle for your projected horsepower goals.

Enter RC Engineering’s fuel pump test service. It’s like a dyno for your fuel pump. This setup consists of a custom-built, fuel pump test bench that can test multiple fuel pump parameters such as flow rate, operating pressure, max pressure, as well as voltage characteristics. RC Engineering’s fuel pump test validates the entire fuel pump output range from free-flow to maximum pressure and each session results in a computer-generated test sheet that runs down the overall condition of your pump in a single, easy to digest document, analyzing the pump’s performance. If you intend to lean on a stock pump or are considering the capacity of a new pump in a new build, RC Engineering can ensure you have the facts and are confident in the pump’s performance capabilities.