Radium Engineering FSTR RA Fuel Surge Tank with Integrated FPR
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Radium Engineering FSTR RA Fuel Surge Tank with Integrated FPR - Universal
Radium Engineering builds some of the most trusted fuel system components in motorsport, and the FSTR RA Fuel Surge Tank is a prime example of that engineering pedigree. This all-in-one unit combines a compact surge tank with an integrated RA-series fuel pressure regulator, giving you consistent fuel delivery and adjustable pressure regulation in a single, space-saving package — no remote FPR required.
Video
How does a RADIUM Fuel Surge Tank work?
This listing covers the Radium Engineering FSTR RA universal fuel surge tank (SKU: 20-1933). Being a universal fitment item, it suits a wide range of custom fuel system builds across performance street cars, track cars, and purpose-built race vehicles.
Important: This unit requires -6AN ORB fittings for all connections. A vacuum or boost reference line is required for correct operation in forced induction applications. Fuel pump is sold separately.
Key Features
- Integrated RA-series fuel pressure regulator — eliminates the need for a separate remote-mounted FPR
- Adjustable fuel pressure range: 2–6 bar (30–90 PSI)
- 1:1 rising rate regulation maintains consistent pressure under boost
- Multiple -6AN ORB (9/16"-18 O-Ring Boss) ports for versatile plumbing
- Integrated vacuum/boost reference port
- CNC-machined billet aluminium construction
- Hard anodised finish for long term corrosion resistance
- Compatible with petrol, E85, and alternative fuel types
- Compact design suited to tight fitment applications
- Universal fitment for custom installations
Compatibility details, installation notes, and fitment recommendations are provided in the tabs above. Please confirm your fuel system configuration and plumbing requirements before ordering.
Pairs Well With
- Radium Engineering O-Ring Service Kit - Standard FST / FST-R (4" OD) - Replacement Seals
- Radium Engineering Diaphragm Service Replacement FPR - Universal - MPR/FST-R/DMR
- Radium Engineering Fuel Surge Tank Mounting Bracket - Universal (Side / Floor Mount)
- Radium Engineering High Flow Inline Fuel Filter - Universal
- Radium Engineering Fuel Pressure Gauge - Universal - 0-100psi / 0-6.9 BAR with 8AN ORB Adaptor
Not sure if this surge tank suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Vehicle Compatibility
Universal fitment — verify dimensions before ordering.
Product
- Brand
- Radium Engineering
- Part number(s)
- 20-1933
Details
- Product
- Fuel surge tank, regulated (FSTR RA)
- Pump capacity
- 1 internal pump (sold separately)
- Regulator
- Integrated RA-series, machined into top cap; 1:1 vacuum/boost referenced or static
- Adjustment
- Tool-less, approx. 1psi (±0.5psi) per detent
- Vacuum port
- 360° swivelling, double O-ring sealed, 10-32 thread
- Vacuum fittings
- 3/16" (5mm) barb, 3AN male, 1/4" push-to-connect, vacuum plug
- Ports
- 6AN ORB (9/16"-18)
- Material
- CNC-machined billet aluminium, anodised
- Fuel compatibility
- All petrol types, methanol, ethanol, E85
Contents
- Radium FSTR RA fuel surge tank with integrated regulator

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