Radium Engineering Fuel Rail (Top Feed Primary)
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Radium Engineering Fuel Rail (Top Feed Primary) - Mazda (13B)
This Radium Engineering high-flow primary fuel rail converts the Mazda 13B-RE and 13B-REW rotary to top-feed injectors, suiting the Mazda/Eunos Cosmo and Mazda RX-7 FD3S (SKU 20-0445). Its large internal bore supports any power level, and the black anodised aluminium body is compatible with all popular fuels including E85.
Three 8AN ORB ports allow flexible plumbing, with the centre port free for accessories such as the OEM fuel temperature sensor (via adapter 14-0421), a pressure transducer or a Radium fuel pulse damper. Billet 14mm injector seats work with or without the OEM diffuser inserts and use FKM O-rings suited to boosted engines.
Note: Suits aftermarket top-feed injectors with 34mm height and 14mm O-rings, such as Injector Dynamics ID1050, ID1300, ID1700 and ID2600 XDS-34-14-14. Fittings are sold separately. Installation by a professional is recommended.
Features
- Large-bore black anodised aluminium primary rail
- 3 x 8AN ORB ports
- Billet 14mm injector seats with FKM O-rings
- Works with or without OEM diffuser inserts
- Thermal insulating spacers and stainless hardware included
- E85 compatible
Pairs Well With
- Radium Engineering Fuel Rail (Top Feed Secondary) - Mazda (13B-REW)
- Radium Engineering FPR/FPD Adaptor - Subaru / Nissan / Mazda RX-7 (FC/FD) - 8AN ORB 11mm Bore
- Radium Engineering Fuel Hanger Surge Tank - Mazda RX-7 (FD3S)
- Radium Engineering Fuel Filter Mount - Mazda RX-7 (FD3S)
- Radium Engineering Fuel Hanger Feed - Mazda RX-7 (FD3S)
Need help confirming fitment? Contact our team at sales@chicaneaustralia.com.au.
Vehicle Compatibility
| Make | Model | Chassis | Years | Engine / Notes |
|---|---|---|---|---|
| Mazda | Eunos Cosmo | JC | 1990-1995 | 13B-RE |
| Mazda | RX-7 | FD3S | 1992-2002 | 13B-REW |
Product
- Brand
- Radium Engineering
- Finish
- Black anodised aluminium
- Part number(s)
- 20-0445
Details
- Position
- Primary, top feed conversion
- Ports
- 3 x 8AN ORB
- Injector seats
- Billet 14mm with FKM O-rings
- Injector compatibility
- Top feed, 34mm height, 14mm O-rings (e.g. ID1050/1300/1700/2600-XDS-34-14-14)
- Fuel compatibility
- All popular fuels including E85
Contents
Black anodized aluminum high flow fuel rail
14mm billet injector seats with FKM O-rings
Thermal insulating spacers and washers
Stainless steel mounting hardware

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