Radium Fuel Rails | Nissan RB25DET NEO / RB20DET / SR20VE (20-0537 / 20-0757 / 20-0331)

Four RB and SR rail options, and two of them change what injectors you can run.

Radium Engineering fuel rails for Nissan RB and SR engines, CNC machined billet aluminum with AN ORB ports. The RB25DET NEO and RB20DET rails are upgrade rails; the SR20VE rail is a top feed conversion.

Choose Your Engine

• Fuel rail, RB25DET NEO (20-0537)
• Fuel rail, RB20DET (20-0757)
• Top feed conversion, SR20VE (20-0331)

What You'll Feel

• Fuel flow that stops limiting a built or boosted RB
• Access to the full top feed injector market on the SR20VE conversion
• ORB ports for a regulator, gauge, or pulse damper

Features

• CNC machined billet aluminum, anodized
• AN ORB threaded ports
• Stainless steel mounting hardware
• Compatible with all fuel types including E85

The Details

The RB25DET NEO rail is specific to the NEO head, which Nissan introduced on the later RB25 and which differs from the earlier RB25DET. Confirm which you have before ordering; Radium builds a separate top feed conversion rail for the earlier RB25DET, stocked here under its own listing.

The SR20VE rail is a conversion, meaning your injectors change from side feed to top feed. That opens up the far larger top feed aftermarket rather than leaving you with scarce side feed options.

Fittings and hose are selected separately, and clearance should be left around any port carrying a larger accessory.

Kit Includes

• Fuel rail with mounting hardware
• NOT included: AN fittings and fuel injectors

Applications

• 20-0537: Nissan RB25DET NEO
• 20-0757: Nissan RB20DET
• 20-0331: Nissan SR20VE, top feed conversion

Important Notes

• The RB25DET NEO rail is NEO head specific; the earlier RB25DET uses the 20-0277 conversion rail
• All fittings sold separately