Radium Engineering FHST - Nissan 370Z & Z (400Z) | Walbro F90000267/274/285 Compatible (No Pumps)

Radium Engineering FHST - Nissan 370Z (Z34) & Nissan Z (RZ34/400Z)

When your Nissan 370Z or Nissan Z (400Z) is making serious power, the factory fuel system simply can't keep up. Cornering hard, pulling high-G loads, or running a built motor under boost — fuel starvation is a real threat. The Radium Engineering Fuel Hanger Surge Tank (FHST) eliminates that risk, replacing your OEM fuel hanger with a precision-engineered surge tank assembly that keeps your injectors fed under demanding conditions.

This listing is for the FHST housing and hanger assembly only — no pumps included. It is designed to accept Walbro F90000267, F90000274, and F90000285 series pumps, giving you the flexibility to spec the pump output that matches your power goals.

Due to the saddle-bag style OEM fuel tank and limited factory baffling in the Z chassis, fuel starvation can occur during aggressive track driving. The FHST places a fully functional surge tank inside the OEM fuel tank, helping maintain stable fuel pressure without the cabin intrusion and installation difficulties of a stand-alone surge tank.

What Is a Fuel Hanger Surge Tank?

A surge tank is a small internal reservoir that sits inside your fuel tank, fed by a lift pump. The main high-pressure pump draws from this reservoir rather than directly from the tank floor. This means:

• No fuel starvation during hard cornering, braking, or acceleration
• Consistent fuel pressure at the rail regardless of tank level
• Reliable fuelling for high-horsepower builds that demand more than the OEM system can deliver

Key Features

• Direct OEM replacement fitment — drops into the factory fuel tank location on Z34 and RZ34 chassis with no cutting, grinding, bending, or sheet-metal fabrication
• Accepts Walbro F90000267 / F90000274 / F90000285 high-flow pump series
• Integrated surge tank reservoir — eliminates fuel starvation under sustained lateral and longitudinal G-forces
• CNC-machined billet aluminium construction — Radium's signature precision, built to last
• Dual pump capable — supports twin pump configurations for extreme power builds
• Integrated 1:1 adjustable fuel pressure regulator and fuel pressure gauge
• Anodised finish — corrosion resistant and fuel-safe
• Radium Engineering USA — designed, engineered, and manufactured to motorsport standards

Compatible Pump Part Numbers

This FHST is designed to accept the following Walbro GSS series pumps:

• Walbro F90000267
• Walbro F90000274
• Walbro F90000285

Pumps are sold separately. Select the pump output that suits your target power level.

Vehicle Application

• Nissan 370Z (Z34)
• Nissan Z (RZ34 / 400Z)

Designed for the Nissan Z34 and RZ34 chassis. Always verify fitment against your specific build, especially where the fuel system has been modified. Contact us if you need confirmation for a non-standard application.

Why Radium Engineering?

• ✔ Designed and manufactured in the USA to motorsport tolerances
• ✔ CNC-machined billet aluminium — no cast or stamped components
• ✔ Trusted by professional race teams and serious street builds globally
• ✔ Bolt-on installation with no cutting, drilling, grinding, or fabrication
• ✔ Compatible with E85, pump petrol, and high-power fuel system builds

Radium Part No: 20-1822
Availability: In stock at COORE Australia — fast local dispatch.
Warranty: Covered under Radium Engineering's standard product warranty.
Shipping: Ships from our Australian warehouse. Express options available at checkout.

Not sure which pump to pair with this FHST? Reach out to the COORE team — we'll help you spec the right setup for your power target.