Radium Engineering New Evo X In-Tank Fuel Pump Hanger

Radium Engineering New Evo X In-Tank Fuel Pump Hanger

Clackamas, OR - Radium Engineering has been hard at work redesigning the in-tank fuel pump hanger for the Mitsubishi Lancer Evolution X. Originally released in 2016, Radium's in-tank fuel pump solution for the Evo X has been used all over the world. After almost four years of production, it was time to apply new technology and design methods to this product.

A clean sheet design was started in late 2019, with focus on function, ease of installation and fuel starvation protection. The result is a very different looking fuel pump hanger from the previous version, with many new features that put it way ahead of any others on the market.

Radium Engineering Mitsubishi Evolution X In Tank Fuel Pump Hanger pasmag 01

Easier Installation

The previous version of the Evo X in-tank hanger used a two-piece collector box that had to be assembled inside the tank during installation. This new version uses a single collector that fully encloses the fuel pumps and can be pre-assembled before installation into the fuel tank.

Also, the previous version reused the steel hold-down flange that came with the OEM hanger. This new version, does away with that flange and bolts directly to the studs on the fuel tank.

This product is also compatible with the Deatschwerks DW400 fuel pump in single or dual configuration. Please note that Radium does not stock DW pumps, so this configuration is only available as "pumps not included".

Notes on Configurations:

  • 1. No pumps included - This is for customers that already have compatible fuel pumps on hand. Parts are included to install one or two fuel pumps in the hanger.
  • 2. Single pump included - This configuration comes pre-assembled with a single pump included. Parts are NOT included to add a second pump.
  • 3. Dual pumps included - This comes pre-assembled with two fuel pumps.

Radium Engineering Mitsubishi Evolution X In Tank Fuel Pump Hanger pasmag 02

Preventing Fuel Starvation

The stock Evo X fuel system is perfectly adequate for a stock vehicle being driven conservatively on the street. However, when the car is modified for more power, or driven on a race track, major shortcomings in the fuel system become big problems. One issue is fuel starvation. The fuel tank is shaped like a saddle bag, with the drive line in the middle. This design is suffers from fuel starvation quite easily during aggressive driving.

For this project, Radium redesigned the venturi jet pump system so that it does not become a restriction for returning fuel from the regulator. This ensures proper fuel pressures are maintained, even with very high flowing pumps.

To help prevent fuel starvation from occurring, Radium Engineering designed a new collector box that completely encloses the fuel pump(s). Fuel is allowed to enter the collector through any of three ways:

  • 1. Fuel can enter through a one-way valve in the bottom of the collector.
  • 2. The return from the regulator is routed into the collector box.
  • 3. The built-in venturi jet pump vacuums fuel from the opposite side of the tank and deposits it into the collector box.

All of these devices work together to keep the collector box full even in the most extreme circumstances.

Radium Engineering Mitsubishi Evolution X In Tank Fuel Pump Hanger pasmag 03

Fitting and Electrical

The Radium designed stainless steel electrical studs are used on this product to handle the high current that aftermarket pumps can demand. These have proven to be extremely reliable in other Radium products and are hermetically sealed and impervious to all fuel types. As before, the factory fuel level sender and fuel temp probe are reused.

The fuel hanger is machined with a -8AN ORB feed port and a -6AN ORB return port. The kit comes with proper fittings installed to attach the factory feed and return lines (shown above). However, these can be removed and replaced with -AN fittings, which are also included with the kit.

Radium Engineering highly recommends upgrading the fuel lines and regulator when installing dual fuel pumps.

Radium Engineering Mitsubishi Evolution X In Tank Fuel Pump Hanger pasmag 04

FUEL HANGER, EVO X, PUMPS NOT INCLUDED, WALBRO GSS342, AEM 50-1200

  • Part Number: 20-0640-00
  • MSRP: $519.95

FUEL HANGER, EVO X, SINGLE PUMP INCLUDED, WALBRO GSS342

  • Part Number: 20-0640-01
  • MSRP: $609.95

FUEL HANGER, EVO X, DUAL PUMPS INCLUDED, WALBRO GSS342

  • Part Number: 20-0640-02
  • MSRP: $699.95

FUEL HANGER, EVO X, PUMPS NOT INCLUDED, WALBRO F90000267/274/285

  • Part Number: 20-0642-00
  • MSRP: $519.95

FUEL HANGER, EVO X, SINGLE PUMP INCLUDED, WALBRO F90000274

  • Part Number: 20-0642-01
  • MSRP: $679.95

FUEL HANGER, EVO X, DUAL PUMPS INCLUDED, WALBRO F90000274

  • Part Number: 20-0642-02
  • MSRP: $839.95

FUEL HANGER, EVO X, SINGLE PUMP INCLUDED, AEM 50-1200

  • Part Number: 20-0643-11
  • MSRP: $634.95

FUEL HANGER, EVO X, SINGLE PUMP INCLUDED, AEM 50-1200

  • Part Number: 20-0643-12
  • MSRP: $749.95

FUEL HANGER, EVO X, PUMPS NOT INCLUDED, DEATSCHWERKS DW400

  • Part Number: 20-0644-00
  • MSRP: $519.95

For more information, visit www.radiumauto.com

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