ISR Performance Fuel Rail Adapter - Nissan SR20DET

The ISR Performance fuel rail adapter for the Nissan SR20DET is the small piece that makes a fuel system upgrade come together. When you move from the stock fuel feed to an aftermarket line, regulator or AN plumbing, the SR fuel rail needs an adapter at the rail to accept the new connection, and this is that part.

Role in the Fuel System

• Adapts the SR20DET fuel rail to accept an upgraded fuel line connection.
• Commonly used when installing an adjustable fuel pressure regulator or converting to braided AN fuel lines.
• Eliminates the need to cobble together hardware store fittings at the rail.

Fitment

Nissan SR20DET engines, including S13 and S14 240SX swaps.

When You Need It

Fuel system work on an SR usually starts with a higher flow pump and larger injectors, and at some point the factory rubber feed line and non-adjustable regulator become the limiting pieces. The adapter lets you tie a proper fuel line into the rail cleanly so the rest of the upgrade can be done correctly.

Install Notes

Relieve fuel pressure before opening any connection. Confirm the thread and seal type on your rail and fuel line match before final assembly, and pressure test the system with the engine off and the pump cycled before starting.

All ISR Performance products are designed for off-road use only.