Radium Engineering Fuel Rail – Nissan RB20DET (Silver Top)

The Radium Engineering fuel rail for the Nissan RB20DET (1989-1993, Silver Top) is designed to meet the fuel needs of modified engines while maintaining OEM compatibility. Featuring a large 0.69" internal bore, the rail can support the necessary engine power requirements, making it ideal for both stock and modified setups.

Crafted from CNC-machined 6063 aluminum and finished with a durable black anodized surface, this fuel rail is built for strength and lightweight performance. The integrated gusset mounts provide extra stability, and the laser-etched design adds a high-quality touch to the engine bay.

This fuel rail is compatible with aftermarket injectors that match the OEM fitment. The upper injector bores are machined with an 11mm ID (Denso) for easy installation. If reusing OEM injectors, use the included FKM O-rings. For custom high-flow fuel systems, the front, rear, and center ports use 8AN ORB (3/4"-16 O-ring threads) for flexibility with various adapter fittings.

Features:

• CNC machined from 6063 aluminum for precision and strength

• Black anodized finish for durability and a sleek look

• 0.69" internal bore to support necessary engine power

• Compatible with aftermarket injectors with the same fitment as OEM

• Includes FKM O-rings for OEM injectors (6 pieces)

• 8AN ORB ports (front, rear, and center) for high-flow custom builds

• Integrated gusset mounts for added strength and stability

Installation:
This fuel rail is designed to be a direct fit for Nissan RB20DET engines (1989-1993, Silver Top). It requires no permanent modifications, and installation is straightforward with the included stainless steel mounting bolts.

Notes:

1. If the OEM fuel pressure regulator is being reused, the 20-0303 FPR Adapter is required (sold separately).

2. This fuel rail is compatible with all fuel types, including alcohol mixtures like E85.

Fuel Injector Compatibility:
This fuel rail is compatible with factory or OEM equivalent fuel injectors. For upgraded injectors, consult your aftermarket injector supplier for compatibility details. Radium Engineering cannot specify exact injector dimensions beyond stating ‘OEM equivalent.’

Compatibility:

• 1989-1993 Nissan RB20DET (Silver Top)