Radium - RA-Series Competition Fuel Cells (FIA FT3-1999)
The Radium Engineering RA-Series Fuel Cells are premier FIA FT3-1999 and SFI 28.3 certified fuel cell containment systems engineered for competitive motorsport disciplines including road racing, drifting, time attack, endurance, and off-road racing. Each cell features a seamless cross-linked polyethylene internal bladder housed inside a lightweight 0.063" powder-coated aluminum enclosure for maximum puncture and impact protection.
Every RA-Series fuel cell is serialized and carries official homologation documentation valid for 5 years from manufacture date. The top opening features an industry-standard 6" x 10" 24-bolt pattern, allowing direct drop-in integration with Radium Fuel Cell Surge Tanks (FCST / FCST-X) or direct filler neck plates.
Key Performance & Safety Features:
- FIA FT3-1999 & SFI 28.3 Homologation: Certified for sanctioned competitive motorsport worldwide. Each bladder includes serialized certification documentation under the removable top inspection window.
- Seamless Polymer Bladder: Engineered from proprietary high-durability polymer impervious to all automotive and racing fuels (pump unleaded, race gas, E85, ethanol, AV-gas, diesel, and methanol).
- Explosion-Suppressing Anti-Slosh Safety Foam: Pre-cut internal safety baffling prevents rapid fuel shifting under high G-forces and suppresses fuel vapor explosion risks.
- Lightweight Powder-Coated Aluminum Canister: Precision bent and welded aluminum enclosure with durable semi-gloss black powdercoat and integrated mounting flanges.
- Modular 6" x 10" 24-Bolt Flange: Direct bolt-on pattern for Radium FCST-X surge tanks, direct fill caps, remote filler necks, and level senders.
- Anodized Aluminum Nut Ring: Internal threaded backing ring ensures leak-free gasket compression and simple one-person top plate installation.
Technical Specifications & Dimensions Chart:
Physical bladder dimensions naturally vary slightly due to rotational molding tolerances. Below are the official external canister dimensions and internal bladder depths:
| Dim | 6 Gallon (20-0606) |
10 Gallon (20-0610) |
10.5 Gal Spare Tire (20-0611) |
14 Gallon (20-0614) |
22 Gallon (20-0622) |
Measurement Description |
|---|---|---|---|---|---|---|
| Capacity | 5.4–6.0 gal (20.3–22.7L) |
9.2–10.0 gal (34.8–37.9L) |
10.3–10.5 gal (38.9–39.7L) |
13.7–14.0 gal (51.9–53.0L) |
21.5–22.0 gal (81.5–83.3L) |
Usable Fuel Volume Range |
| A | 17.1" (434mm) | 27.0" (686mm) | 24.0" (610mm) | 27.0" (686mm) | 27.0" (686mm) | Upper Lid Width (Flange / Diameter) |
| B | 15.5" (394mm) | 15.5" (394mm) | 22.5" (572mm) | 15.5" (394mm) | 22.5" (572mm) | Upper Lid Length (Flange to Flat Side) |
| C | 8.1" (206mm) | 8.1" (206mm) | 8.1" (206mm) | 11.8" (300mm) | 11.8" (300mm) | Total Cell Height |
| D | 8.0" (203mm) | 8.0" (203mm) | 8.0" (203mm) | 11.7" (297mm) | 11.7" (297mm) | Height Under Mounting Flange |
| E | 13.5" (343mm) | 13.5" (343mm) | 20.5" (521mm) | 13.5" (343mm) | 20.5" (521mm) | Lower Canister Length |
| F | 15.1" (384mm) | 25.0" (635mm) | 22.0" (559mm) | 25.0" (635mm) | 25.0" (635mm) | Lower Canister Width |
| G (Depth) | 7.7" (196mm) | 7.7" (196mm) | 7.7" (196mm) | 11.4" (290mm) | 11.4" (290mm) | Internal Depth (Flange to Floor) |
Fuel Cell Surge Tank (FCST-X) & Lift Pump Depth Guide:
Internal depth G is critical when pairing your RA-Series cell with an internal surge tank or drop-in lift pump assembly:
- Shallow Cells (6 Gal, 10 Gal, 10.5 Gal Spare Tire): Feature a 7.7" (196mm) internal depth. Use Radium Shallow Lift Pump Brackets (PN 20-1212 or 20-1215).
- Deep Cells (14 Gal, 22 Gal): Feature an 11.4" (290mm) internal depth. Use Radium Mid-Deep Lift Pump Brackets (PN 20-1213 or 20-1216).
What's Included in the Box:
- Seamless Polymer Bladder (FIA FT3-1999 & SFI 28.3 certified)
- Explosion-Suppressing Anti-Slosh Safety Foam (pre-cut)
- Lightweight 0.063" Powder-Coated Aluminum Enclosure
- Anodized Billet Aluminum 24-Bolt Nut Ring
- Removable Clear Top Inspection Window Plate & Hardware
- FKM Viton 6" x 10" 24-Bolt Flange Gaskets (x2)
- Stainless Steel Fasteners & Mounting Hardware
- Official Serialized Certificate of Conformance Paperwork
Notice: Top fill plates, fuel surge tanks (FCST-X), remote fill necks, and fuel level senders are sold separately.