Radium Engineering Top Feed Fuel Rail Conversion
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Radium Engineering Top Feed Fuel Rail Conversion - Nissan Silvia (S13 SR20DET)
The Radium Engineering top feed fuel rail (SKU 20-0558) converts the OEM side-feed injector setup on the rear-wheel-drive Nissan S13 SR20DET to top-feed, opening up a wide range of high-flow aftermarket injectors. It is CNC machined from aluminium with a 0.69in internal bore and a black satin anodised finish that is safe with all petrol and alcohol blends, including E85.
The rail bolts to the factory fuel rail mounting points. Three 8AN ORB female ports (both ends and the underside centre) plus a 1/8in NPT top port allow feed, return and sensor connections; the underside port can take a Radium FPD-R fuel pulse damper (P/N 20-0776) or be plugged. It suits the S13 SR20DET RWD intake manifold and some aftermarket manifolds that accept the OEM rail.
Note: Requires 34mm top-feed injectors with 14mm upper and lower O-rings (e.g. Injector Dynamics ID1050/ID1300/ID1700/ID2600-XDS-34-14-14); taller injectors are not recommended due to bonnet clearance. Reuse the 3 OEM 5mm spacers (Nissan P/N 17522-10V00) under the supplied brackets for thermal insulation and correct rail height. Injectors and fittings are sold separately. Installation by a professional is recommended.
Features
- Converts OEM side-feed to top-feed injectors
- CNC machined aluminium, black satin anodised
- 0.69in internal bore for high flow
- 3x 8AN ORB female ports (ends and underside centre)
- 1x 1/8in NPT female top port
- Underside port accepts Radium FPD-R pulse damper (20-0776)
- Mounts to factory fuel rail mounting points
- Compatible with all fuel types including E85
Pairs Well With
- Radium Engineering Injector Seats for Top Feed Conversion Fuel Rails - Nissan SR20DET (S13/S14/S15) / RB25DET (R33/R34)
- Radium Engineering Fuel Pump Hanger - Nissan Silvia (S13) / Skyline (R32 Excl. GT-R)
- Radium Engineering Fuel Hanger Plumbing Kit - Nissan Silvia (S13) / Skyline (R32 Excl. GT-R)
- Radium Engineering Fuel Filter Kit - Nissan Silvia / Skyline (All Models)
Need help confirming fitment? Contact our team at sales@chicaneaustralia.com.au.
Vehicle Compatibility
| Make | Model | Chassis | Years | Engine / Notes |
|---|---|---|---|---|
| Nissan | Silvia | S13 | 1988–1993 | SR20DET (RWD intake manifold) |
| Nissan | 180SX | S13 | 1989–1998 | SR20DET (RWD intake manifold) |
Product
- Brand
- Radium Engineering
- Part number(s)
- 20-0558
Details
- Material
- CNC machined aluminium, black satin anodised
- Internal bore
- 0.69in
- Ports
- 3x 8AN ORB female (ends + underside centre), 1x 1/8in NPT female (top)
- Injector requirement
- Top feed, 34mm length, 14mm upper/lower O-rings
- OEM spacers reused
- 3x Nissan 17522-10V00 (5mm)
- Fuel compatibility
- All petrol and alcohol blends including E85
Contents
Black anodised aluminium fuel rail
4x 30mm black anodised aluminium injector seats
3x stainless steel mounting brackets
6x stainless steel mounting bolts
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