Radium Engineering Top Feed Fuel Rail Conversion Kit, Toyota 1JZ-GTE, Non VVT-i

The extruded rail features a large 0.69" internal diameter bore to suit even the most fuel hungry engines. They are CNC machined from a custom 6063 aluminum, media blasted, black anodized, and laser etched for a high quality surface finish. This kit is compatible with all fuel types including popular alcohol mixtures such as E85. All ports are tapped with 3/4"-16 female threads (-8AN ORB). If the fuel rail was purchased after August 25, 2017 the fuel rail features 2 bottom ports (4 ports in total). The Radium fuel rail converts the OEM side feed fuel injector setup to top feed, allowing the use of high flow fuel injectors (NOT INCLUDED). The kit includes 2 different sets of mounting feet allowing various height fuel injectors to be used (short spacers shown). The anodized aluminum mounting feet secure the fuel rail to the intake manifold reusing the OEM Toyota thermal insulating spacers. The fuel injector bores and the included press-fit injector seats are designed for 14mm injector O-rings. These seats include O-rings to prevent boost pressure leaks. They are CNC machined billet aluminum, anodized, and laser etched. Use the tall spacers to accomodate this size injector: Below are some of the many fuel injectors that are a direct fitment with this Radium fuel rail kit using the tall spacers: Injector Dynamics ID725-48-14-14 Injector Dynamics ID850-48-14-14 Injector Dynamics ID1000-48-14-14 Injector Dynamics ID1050x-48-14-14 Injector Dynamics ID1300-48-14-14 Injector Dynamics ID1700-48-14-14 Injector Dynamics ID2000-48-14-14 Evolved Injection EI550-48-14-14 Evolved Injection EI650-48-14-14 Evolved Injection EI850-48-14-14 Evolved Injection EI1000-48-14-14 Evolved Injection EI1200-48-14-14 Evolved Injection EI1300-48-14-14 Evolved Injection EI2200-48-14-14 Deatschwerks 17U-00-0050-6 Deatschwerks 17U-00-0060-6 Deatschwerks 17U-00-0072-6 Deatschwerks 17U-00-0095-6 Deatschwerks 16S-12-2200-6 Use the shorter spacers to accomodate this size injector: Below are some of the many fuel injectors that are a direct fitment with this Radium fuel rail kit using the short spacers: Injector Dynamics ID850-34-14-14 Injector Dynamics ID1050x-34-14-14 Injector Dynamics ID1300-34-14-14 Injector Dynamics ID1700-34-14-14 Injector Dynamics ID2000-34-14-14 Evolved Injection DPI550-38-14-14 Evolved Injection DPI650-38-14-14 Evolved Injection DPI850-38-14-14 Evolved Injection DPI1000-38-14-14 Evolved Injection DPI1200-38-14-14 Evolved Injection DPI1300-38-14-14 Evolved Injection DPI2200-38-14-14 RC Engineering SM2-0310 RC Engineering SM2-0370 RC Engineering SM2-0450 Deatschwerks 16U-00-0042-6 Deatschwerks 16U-00-0050-6 Deatschwerks 16U-00-0065-6 Deatschwerks 16U-00-0090-6 Deatschwerks 16M-00-1500-6 Deatschwerks 16M-00-2200-6 To reuse the OEM fuel pressure regulator, select the 14-0285 8AN ORB to M12x1.25mm Fitting (shown below). INCLUDED: 20-0235 Toyota 1JZ-GTE Fuel Rail: -Black Anodized Laser Etched Aluminum Fuel Rail -Black Anodized Aluminum Mounting Feet, Tall and Short -Stainless Steel Mounting Feet Bolts (x6) -20-0216-06 Toyota Injector Seat Kit, 6 Cylinder Fuel Pulse Damper(s) Do I need pulse dampers? The opening and closing of the 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 should be used (especially with high flow injectors). The internal diaphragm will absorb oscillation pulses and stabilize fuel pressure. This correction can be measured throughout the RPM range and can often help an erratic surging idle.