Radium Engineering Lotus Elise/Exige Frame Rail Mount Fuel Surge Tank Kit (FST Not Incl)

COMPATIBILITY

• 2004+ Lotus Elise 2ZZ-GE
• 2004+ Lotus Exige 2ZZ-GE

Installation on supercharged models will require relocation or removal of the charcoal canister.

OVERVIEW

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

The kit was designed for non-supercharged models with the 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. Lotus Cup Cars do not use a charcoal canister so this kit is viable. 

To plumb the overflow port on the FST back to the tank, a billet fuel filler adapter is provided for the Elise and Exige. If installing into the rare Lotus Cup Car or Lotus 2-Eleven, Radium part 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. 

TESTING DATA

Shown below is data from an 18 minute track session of our Lotus Elise without a fuel surge tank installed. This data shows why a surge tank is necessary on these cars.

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