We will NOT respond to random emails or phone calls requesting status, returns, or cancellation. OEM quality damper features 3/8 NPT male thread with impregnated pipe thread paste. If you need help with an order start by selecting the Orders link on our site or the Order Support button in the email received a time of purchase and submit the appropriate form. Updates on special orders are available upon request only and we do not provide phone support for special order status updates. In these cases we work extra hard to expedite getting the order shipped quickly. Special orders are sent directly to the manufacturer and usually drop ships directly from them in many cases but occasionally ships to one of our distribution centers and then shipped to the shipping address provided at purchase. Radium Engineering fuel pulse damper The opening and closing of fuel injectors creates pressure pulses in the fuel rail this can lead to unstable fuel. THE ORIGINAL MERCHANT TRANSACTION FEE (3-7% depending on your payment method) IS NON-REFUNDABLE AND WILL BE DEDUCTED FROM ALL RETURNED ORDERS. Along with having the flexibility of using common fittings, Radium Engineering FPDs use a vacuum/boost reference port which allows for proper fuel pulse damper. NO CANCELLATIONS, REFUNDS, OR RETURNS WITH EXCEPTION TO DAMAGED UPON RECEIPT OR RECEIVED A PRODUCT DIFFERENT THAN PRODUCT ORDERED. Contact us before making a purchase if you want to get more info on an estimated ship date which will help avoid cancellation issues. There is NO guaranteed delivery date for any special order and manufacturers often change the expected ship date several times. Otherwise the factory may have to produce or final finish a part which typically ships in 3-6 weeks but can take up to 12 weeks or more for certain parts. If the manufacturer has the item in stock it will normally drop ship directly to you within 5-7 business days depending on your location and the type of shipping required. Many manufactures keep less popular parts they produce in stock and can process orders we submit quickly. This does not mean the part is not currently available. Any dynamic fuel pressure created by a rising-rate FPR outside of this range is acceptable, but only when the base "static" fuel pressure is set within these ranges and the vacuum/boost reference line is connected.Special order parts are defined by Grudge Motorsports, LLC as any product, auto part, performance part, tool, accessory, etc., that we do not currently have in stock, that are on backorder, or that we do not stock as a shelf item which may be due to lack of popularity or the part has various options that make each order unique. IMPORTANT: The ranges above are base static fuel pressures only. Precision CNC machined from 6061 aluminum, this Radium Engineering Fuel Pulse Damper features a vacuum/boost reference port which allows for proper fuel pulse. The FPDs internal diaphragm will absorb oscillating pulses and stabilize fuel pressure. In order to achieve a safe and consistent rail pressure, a fuel pulse damper (FPD) is often necessary. The FPD- R (Fuel Pulse Damper- Range) and FPD- XR (Fuel Pulse Damper- Extra Range) both have unique base "static" fuel pressure requirements:įPD-R base pressure requirement = 40 - 70psi (static)įPD-XR base pressure requirement = 40 - 120psi (static)īase pressure is the fuel pressure measured when the fuel pump is running WITHOUT a vacuum line connected to the regulator. Radium Fuel Pulse Damper Direct Mount Kit. This becomes essential for boosted systems that use a 1:1 rising rate fuel pressure regulator. Furthermore, a fuel pulse damper can help solve erratic lean air/fuel ratio spikes, commonly experienced as "stumbling", that are difficult to tune out.Īlong with having the flexibilty of using common fittings, Radium Engineering FPD's use a vacuum/boost reference port which allows for proper fuel pulse damper performance even at elevated fuel pressures. This correction can be measured throughout the RPM range and can often help idle surge, especially with high flow injectors. The FPD's internal diaphragm will absorb oscillating pulses and stabilize fuel pressure. The opening and closing of fuel injectors creates pressure pulses in the fuel rail which can lead to unstable fuel pressure. In order to achieve a safe and consistent rail pressure, a fuel pulse damper (FPD) is often necessary.
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