Radium Fuel Surge Tank Kit, Frame Rail Mount, Elise/Exige, Fst Sold Separately

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  • Regular price $499.95

This comprehensive installation kit includes everything required to install a Radium FST-R in a US Market 2ZZ-GE powered Lotus Elise/Exige. The kit locates the FST-R on the right hand side of the vehicle near the alternator.

1. The physical FST-R is sold separately 
2. If installing the newest Radium FST-R (20-0933), the provided electrical power plug in this install kit will simply need to be cut off and replaced with the ring terminals provided with the new FST-R.

The kit was designed for 2004-up Lotus Elise/Exige models with a nonsupercharged 2ZZ-GE engine. This location is compatible with A/C equipped cars and is ideal if the clamshell is modular. However, for the OEM supercharged Elise/Exige, Lotus relocated the emissions charcoal canister to this area. The charcoal canister will have to be removed or relocated. NOTE: Lotus Cup Cars do not use a charcoal canister so this kit is viable. 
A billet fuel filler adapter (shown below) is provided that is suitable for the Elise and Exige.

If installing into the rare Lotus Cup Car or Lotus 211, Radium 14-0062 will need to purchased separately to adapt to the larger fuel filler hose associated with these vehicles.

This kit is compliant with all popular alcohol fuels including E85. All factory fuel lines are replaced with high quality -6AN PTFE hose. It is also compatible with both the OEM fuel rail as well as a Radium Fuel Rail

The install kit is designed to be used with the Radium FST-R which has an integrated fuel pressure regulator built-in. This means that no external regulator needs to be purchased.


-Preassembled PTFE hoses with -6AN hose ends 
-Anodized Aluminum Fuel Return Adapter
-Nickel Plated Frame Rail Mounting Bracket
-OEM Style and -AN Adapter Fittings
-Stainless Steel Hardware
-Installation Instructions
-Wire Harness with Weather Sealed Relay and Fuse
-Plug N' Play Adapter Harness for Fuel Pump Activation Trigger


Shown below is an 18 minute track session of our Lotus Elise without a fuel surge tank installed.


X Axis: Fuel Pressure above 1500RPM Note: Pressure SHOULD be ~47.5psi constant