When it comes to fuel injectors, the opening and closing action creates pressure pulses in the fuel rail. This can sometimes lead to unstable fuel pressure, which is where a fuel pulse damper (FPD) comes into play. By using an FPD, you can achieve a safe and consistent rail pressure. The internal diaphragm of the FPD works hard to absorb those oscillating pulses, stabilizing the fuel pressure across the RPM range. This can be especially helpful in reducing idle surge, particularly if you're using high flow injectors. Plus, if you've ever experienced those frustrating "stumbling" moments due to erratic lean air/fuel ratio spikes, an FPD can help smooth things out, making tuning a lot easier.
One of the great things about fuel pulse dampers is their flexibility in installation. They can be mounted at any angle, even upside down! Depending on your fuel system setup, you might find that using multiple dampers is beneficial, or that placing one on the return line can make a noticeable difference.
Radium Engineering stands out with its FPDs because they offer the flexibility of using common fittings. Their design includes a vacuum/boost reference port, ensuring that your fuel pulse damper performs optimally, even under elevated fuel pressures. This feature is particularly crucial for boosted systems utilizing a 1:1 rising rate fuel pressure regulator.
When deciding between the FPD-R (green top) and the FPD-XR (black top), the main difference lies in their size. The FPD-R is slightly shorter, making it a fantastic choice for tighter spaces.
Both the FPD-R and FPD-XR have specific base "static" fuel pressure requirements:
Base pressure is measured when the fuel pump is running, without a vacuum line connected to the regulator. This is key to ensuring your setup works smoothly.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Radium Engineering is a company that was founded in 2010. The company specializes in designing and producing some of the best aftermarket products in the market. They have produced parts used by various racers and motorsport enthusiasts worldwide. Today, they have established a name for themselves and have become a brand synonymous with performance.
Quality in Every ProductAll of their products are done in house, from research and development, design and manufacturing. They use the latest computer simulation and modeling tools that allow them to create an accurate and precise model. After all is done, they subject their products to an extensive testing procedure to ensure that it is safe to use and performs the way it is designed to.
Not Your Ordinary Stock PartsThe company focuses on manufacturing race-oriented parts and accessories such as surge tank lines and PCV oil catch can systems. They also offer fuel fittings, fuel manifolds, pumps, and fuel regulators designed for high performance applications. All their parts are made out of high quality materials that can withstand extreme forces.
Purchase Radium Engineering Products At Vivid RacingIf you are in search of a high quality fuel system component for your vehicle, then Radium Engineering is the brand for you. Specifically made for high-performance applications, they are the trusted brand of top racers from different racing disciplines everywhere. To know more about Radium Engineering, visit Vivid Racing and check out their list of products that fit your specific needs.