Whether you're simply upgrading injectors on your stock injectors in your FD RX7, or carrying out an engine conversion with a 13BREW, this Radium Engineering Secondary Fuel Rail Kit will help you get the job done neatly and most importantly, correctly.
This high-flow secondary fuel rail has been designed for the 13B-REW rotary engines with a large internal bore to support both stock & high-horsepower applications. Each rail is CNC machined from billet 6061 aluminium and anodized black for sleek looks and full compatibility with all popular fuel types including ethanol E85.
A unique feature of the Radium Secondary Fuel Rail is that it features 4 injector ports as standard, making it compatible with the OEM FD RX7 13B-REW manifold as well as aftermarket 4-injector setups including the Elite & Xcessive lower intakes. Installation on an OEM intake simply requires the use of the two supplied 2AN orb plugs to block off the two centre injector ports.
NOTE: The factory air control valve will not be able to be used with this kit & an ACV Delete Plate will be required (See extras tab). Also, if using an Elite Rotary Shop 4-port intake manifold (as shown below), 2 extra injector seats are required. For the Xcessive Manufacturing 4-port intake manifold, the included 11mm insulating spacers will be used.
Each rail features three 8AN ORB ports off the shelf, with the extra centre port supporting additional fuel system accessories such as the OEM fuel temperature sensor or an aftermarket pressure sensor with the use of an adaptor available separate (See extras tab). If not required it can simply be blocked with the supplied in-hex blanking plug.
- Secondary Fuel Rail
- 2x 11mm Insulating Spacers & Washers
- 2x 20mm Insulating Spacers & Washers
- 2x Stainless Mounting Pedestals
- 2x Stainless Allen Head Bolts
- 2x 14mm Injector Seats
- 1x -6 fitting
- 1x -8 Fitting
- 1x 8AN In-Hex Plug
- 13B-REW (FD3S 13B)
- Aftermarket 4-port Intakes (Elite & Xcessive)
The Radium Engineering Installation Guide can be found HERE