Description
Radium Engineering Top Feed Conversion Fuel Rail – Nissan RB25DET
High-flow top feed conversion fuel rail engineered for high-performance Nissan RB25DET non-NEO engines.
Product Overview
The Radium Engineering Top Feed Fuel Rail Conversion Kit (PN 20-0277) is designed specifically for the Nissan RB25DET non-NEO engine, commonly found in the R33 Skyline GTS-T and performance swap applications. This rail converts the factory side-feed fuel injector arrangement into a high-flowing top-feed setup, opening up a wide selection of modern aftermarket injectors for high-horsepower builds.
Machined from extruded 6063 aluminum and finished in a durable black anodize, the rail features a massive 0.69″ (17.5mm) internal bore to satisfy extreme fuel demands while dampening pressure pulses. Four 8AN ORB ports allow flexible plumbing options for fuel delivery, return, fuel pressure regulators, or pulse dampers. The kit includes green O-ring sealed injector seats and dual-length thermal insulating spacers to accommodate various top-feed injector heights and shield fuel from engine bay heat transfer.
Key Features
- ☑ Top Feed Conversion: Replaces factory side-feed setup to allow fitment of high-capacity top-feed injectors.
- ☑ Large Internal Bore: Generous 0.69″ (17.5mm) internal diameter supports high-horsepower fuel flow demands.
- ☑ Four 8AN ORB Ports: Tapped with 8AN ORB (3/4″-16 O-ring) threads for versatile plumbing and accessories.
- ☑ CNC Machined Aluminum: Precision machined 6063 aluminum construction with protective black anodized finish.
- ☑ Thermal Insulation: Features heat-resistant insulating spacers and washers to protect fuel from manifold thermal soak.
- ☑ E85 & Alternative Fuel Compatible: Safe for use with all fuel types including ethanol (E85/E100) and methanol.
Technical Specifications
| Manufacturer | Radium Engineering |
|---|---|
| MPN | 20-0277 |
| Engine Compatibility | Nissan RB25DET Non-NEO (e.g. R33 Skyline GTS-T) |
| Internal Bore Size | 0.69″ (17.5 mm) |
| Port Thread Specification | Four 8AN ORB (3/4″-16 O-Ring Boss) |
| Material / Finish | 6063 Aluminum / CNC Machined Black Anodized |
| Injector Seat Bore | 14mm Lower O-Ring Compatible (25mm Injector Seats 20-0161-06) |
| Fuel Compatibility | Petrol, E85, Ethanol, Methanol |
What’s Included in the Box
- 1x Radium Engineering Black Anodized Aluminum Fuel Rail (20-0277)
- 6x Green O-ring Sealed Injector Seats (20-0161-06, 25mm)
- 3x Short Insulating Spacers
- 3x Tall Insulating Spacers
- 3x Insulating Washers
- 3x Stainless Steel Mounting Bolts (Short)
- 3x Stainless Steel Mounting Bolts (Tall)
Engineered for uncompromising motorsport reliability, Radium Engineering components represent the gold standard in performance fuel delivery systems. Order your RB25DET top feed fuel rail conversion kit from JP Racing today for verified fitment, technical support, and fast UK delivery straight to your workshop.
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