Radium Engineering Fuel Rail | 1989-2002 Nissan Skyline GTR R32/33/34 (20-0217)

The RB26's factory rail was engineered for 276 advertised horsepower; nobody builds an RB26 for 276 horsepower.

The restrictive OEM rail chokes fuel delivery under high pressure exactly when a big-power RB needs consistency most. The Radium Engineering Fuel Rail for the Nissan RB26DETT is designed specifically for OEM R32, R33, and R34 intake manifolds: a large 0.69" internal bore in a custom 6063 aluminum extrusion, CNC machined, black anodized, and laser etched. Press-fit machined spacers and washers completely isolate the rail from heat transfer via the manifold and mounting bolts, and the 11mm ID (Denso) upper injector bores accept aftermarket injectors matching OEM fitment, with included O-rings letting the factory JECS injectors carry over too. Three 8AN ORB ports plus a 1/8" NPT gauge port. All fuels including E85.

What You'll Feel

• Consistent fuel delivery to all six injectors where the restrictive OEM rail falls behind under pressure
• Rail volume ready for the single-turbo and E85 builds the platform lives for
• Cooler fuel through complete thermal isolation from the manifold and bolts
• Injector freedom across the 11mm Denso-bore aftermarket plus OEM reuse with the included O-rings
• Ports for the DMR regulator, pulse damper, and gauge the fuel system deserves

Features

• Designed specifically for OEM R32/R33/R34 RB26DETT intake manifolds
• 0.69" internal bore, CNC machined custom 6063 aluminum extrusion, black anodized, laser etched
• Press-fit machined spacers and washers completely isolate the rail from manifold and bolt heat transfer
• 11mm ID (Denso) upper injector bores accept aftermarket injectors with OEM fitment; included O-rings enable OEM JECS injector reuse
• 3x 8AN ORB ports (both ends and center) plus 1x 1/8" NPT gauge port
• All fuel types including E85

The Details

The port layout maps to Radium's ecosystem: 8AN ORB adapter fittings carry feed and return, the end ports accept a direct-mount DMR regulator, the center port takes an 8AN ORB pulse damper, and the NPT port hosts a gauge or sender with PTFE paste. Injector guidance follows the OEM-fitment rule, with any aftermarket injector matching the factory dimensions dropping in, dimensions confirmed with the injector manufacturer. For stock-style plumbing, the companion 20-0217-PK plumbing kit (sold separately) makes it a complete bolt-on: hose from the filter to the rear port via 6AN hose end and adapter, an FPR adapter mounting the OEM regulator to the front port, hose to the frame rail hard line, stainless EFI clamps, and plugs for the center and gauge ports. In Radium's own R32 fuel delivery system, this rail anchors the engine end alongside the FPD-R damper, DMR, and 0-100 psi gauge.

Kit Includes

• 1x Black anodized laser etched RB26DETT fuel rail
• Press-fit thermal isolation spacers and washers
• 6x Injector O-rings for OEM JECS injector reuse
• Mounting hardware; injectors and fittings NOT included

Applications

• 1989-2002 Nissan Skyline GT-R R32, R33, R34 (RB26DETT, OEM intake manifolds)
• Stagea 260RS and RB26 swap applications with OEM manifolds
• Plumbing kit 20-0217-PK sold separately for factory-style hookup