Radium FSTR RA Fuel Surge Tank w/Integrated FPR Fuel Pressure Regulator

FSTR-RA

A fuel surge tank is designed to prevent starvation to the engine on vehicles with inadequate fuel tank baffling. The surge tank pump feeds the fuel rail(s). The volume of fuel inside acts as a buffer to always keep the fuel surge tank pump supplied. This volume is maintained by the main fuel tank's (lift) pump as well as the fuel returning from the fuel pressure regulator.

In the case of the FSTR-RA (fuel surge tank regulated-rotating assembly), the regulator is built into the surge tank and recirculates fuel internally. Excess fuel in the surge tank is returned back to the vehicle's main fuel tank.

Installing a surge tank is also an easy way to upgrade the fuel pump of a vehicle without opening or modifying the OEM fuel tank. The FSTR-RA is suitable with all gasoline types including unleaded, leaded, oxygenated, and pre-mixes. Furthermore, they are compatible with alcohol blends of fuel including methanol, ethanol, and E85.
The FSTR-RA houses a single internal fuel pump and has an integrated fuel pressure regulator machined into the top cap. This eliminates the need for an external fuel pressure regulator along with extra fittings and hoses. It simplifies the installation, reduces overall cost, reduces weight, and eliminates potential leak points in the fuel system. Furthermore, this system permits cooler fuel temperatures as the fuel is not returning from the hot engine bay.

REGULATOR

RA-series regulators feature the first tool-less pressure adjustment. A jam nut and set screw are no longer required. With a simple turn of the knob, pressure will be increased or decreased. To aid in adjusting pressure, there are incremental detents that provide haptic feedback to the user. Every detent permits 1psi (+/-0.5psi) of adjustment depending on current fuel pressure. Furthermore, RA-series regulators feature a 360 degree swiveling vacuum reference port that is double O-ring sealed. This is the first in the industry. It permits the installer to quickly point the vacuum fitting in any direction with no tools required.

There are 4 interchangeable 10-32 threaded vacuum port fittings provided to cover all scenarios.

1. Barbed Fitting: A black zinc-plated 3/16" (5mm) barb machined from high strength steel that is compatible with the following vacuum hoses: 5/32" (4mm), 3/16" (5mm), and 7/32" (6mm).
2. 3AN Male Fitting: A black zinc-plated adapter machined from high strength steel that is compatible with 3AN hose ends.
3. Push-To-Connect: A nickel-plated brass fitting with Buna-N O-rings that is compatible with hard plastic 1/4" OD tubing.
4. Vacuum Plug: A black oxide stainless steel screw that is used to maintain a constant (non dynamic) fuel pressure. Beginning in the mid 1990s, vehicle manufacturers started transitioning to returnless fuel systems to lower EVAP emissions. To keep temperatures lower, these regulators are mounted inside the tank and do NOT have the ability to be vacuum referenced. This plug would be required in this scenario.

PORTS/FITTINGS

The 2 ports on top are for fuel entering the FSTR-RA (from the lift pump) and fuel overflowing and leaving the FSTR-RA (to the main tank). They are interchangeable and feature an internal flow deflector that prevents fuel foam and aeration. The side port is the regulated pressure output and is plumbed directly to the engine. No additional fuel pressure regulator is required. However, a fuel pressure gauge/sensor is required to set and monitor fuel pressure. It can be located anywhere between the FST-R output line and the fuel rail(s). 

All three ports are tapped to 9/16"-18 (6AN ORB). Three 6AN adapters fittings are preinstalled to the ports. Additionally, one 6AN ORB fitting that adapts to 8AN male is provided, if needed. If using a fuel pump that does not have an integrated check valve (such as the brushless Ti Automotive E5LM), Radium 20-0534 can be screwed directly to the 8AN male adapter. 

PUMP COMPATIBILITY

The FST-RA can be configured with all 39mm fuel pumps from many leading manufacturers, including:

• Ti Automotive E5LM (brushless)
• Walbro F90000267
• Walbro F90000274
• Walbro F90000285
• Walbro GSS341
• Walbro GSS342
• AEM 50-1000
• AEM 50-1200

NOTES:

1. There many compatible pump manufacturers not listed.
2. The FST-RA is not available in dual-pump configurations.

ELECTRICAL

The stainless electrical terminals easily handle the high current demand that compact multi-pin bulkhead connectors lack. These serviceable connections are hermetically sealed and impervious to all standard and exotic fuels. Non conductive anodized aluminum acorn nuts are provided to prevent any accidental short circuiting. Electrical hardware is included for the fuel pump. Furthermore, the in-tank wiring is insulated with high quality chemically resistant ETFE. Relay kits, such as 17-0031, are recommended to drive these new internal fuel pump.

The FSTR-RA features a built-in electrical strain relief for the fuel pump wires. Furthermore, a billet aluminum dust cap (shown above) is provided to hide all external wires.

OPTIONAL MOUNTING BRACKETS:

The FST-R can be mounted anywhere on the vehicle. Mounting locations near heat sources or moving parts such as suspension components should be avoided. It should also be mounted away from common collision areas. Choose a bracket below that best fits your mounting needs.

• Floor and Wall Mount - This bracket is laser cut from aluminum and type-II anodized black. It can be mounted on the side or bottom of the surge tank.
• Frame Mount - Because this bracket has a 90 degree formed bend and is cantilevered, it is constructed from stainless steel for superior strength. It comes polished which permits components to be grounded to the spare hole in the bracket. This assumes the bracket is mounted to an electrically conductive material such as a steel frame.
• Angled Mount - This mounting bracket is used for vehicles that may have a limited mounting height. It can be secured to a floor and against a wall. This bracket is made from laser cut aluminum and type-II anodized black.

Product Features:

• Full CNC aluminum construction
• Anodized for compatibility with all fuel types
• Integrated adjustable regulator
• Optional 1:1 vacuum reference
• Electrical strain relief with wiring dust cap
• Flow deflector to prevent foam and aeration
• 6AN fittings including one 8AN
• FKM O-ring sealed interfaces 
• Stainless steel hardware 

• We endeavour to ship all regular and stocked items on same day, next day or within 5 business days of your order being placed
• Custom orders may take longer than regular shipping times but will have information about shipping time on the listing
• We take extra care in packaging your orders to ensure you quality parts arrive safely
• PRP accepts no responsibility for damage or loss to items/products/services from courier or shipping companies once we have received receipt for the third-party service
• All Items purchased from PRP are to be installed by a qualified mechanic at a licensed workshop
• Modifying your vehicle is illegal in some states and territories, the customer acknowledges that it is their responsibility to abide by the law and take the appropriate measures to ensure that their vehicle is roadworthy
• PRP assumes no responsibility for any work carried out, modifications made or parts supplied with regards to road use, as all our products are intended for track use only

Refund requests will be reviewed case by case. Due to numerous factors including automatic & immediate 3rd party supplier purchase orders & merchant fees imposed on us, you might be liable to cover an unavoidable restocking/cancellation fee of ≥ 5%. Please review your purchase and consider contacting us for an ETA before placing an order. If your order is for a gearbox, specific turbocharger, engine build, manifold or something generally not in our extensive inventory, this restocking fee is based on the supplier and not dictated by PRP.

• Effective September 2024, refunds will not be provided for change of mind, incorrect choice or custom ordered products.
• Exchanges or refunds for items and customers that are categorized and applicable under the Australian Consumer law, requires the product/s remain unused and returned in original packaging in saleable condition at your expense to our HQ in Australia. They must return in reasonable time. PRP justifies reasonable to 60 days from date of purchase.
• If items are damaged due to courier or otherwise neglect outside of your or PRP's control, you must notify PRP within 14 days of receipt or the claim is void.
• Platinum Racing Products is not liable for refunds or replacements due to lost or stolen property. We will however attempt every effort to assist in the recovery of your goods.
• We reserve the right to offer you a full or partial refund which can be applied over staged or full payment/s within a 30 day period. 
• You agree that if you select "Authority to Leave" or similar, you waive the liability from the shipper (as per their line agreement) and Platinum Racing Products. As such, we strongly suggest sending your package to an address where someone will be available to sign for the goods and keep them secure.
• Anodizing is done in house with state of the art equipment and we hold stock of most popular colour's. We anodize generally within 48hrs. No refund nor partial will be provided if your request is inside the 48hr period and you require urgent parts however we will always do our best to meet your needs.
• There is no partial or full refunds on shipping where factors are outside of PRP's control. Any shipping estimates are to be considered estimates only.
• Silicone Hose Kits: Please note that our silicone hoses have been designed and tested for the vehicle models mentioned. They may fit other vehicles with the same engine model, however the purchase and installation is at your own risk. Due to extensive model changes throughout the years, we are unable to supply or customize hoses in alternative lengths or sizes beyond what is offered. The kits might not contain every hose you want, but we have made every effort to include the series changes to cover the majority of needs. This means we might include hose/s that don't suit your series as a bonus. We strongly advise that you carefully review all photographs provided before making your purchase. PRP does not offer refunds or partial refunds for hoses that are not included in the kit unless they are explicitly shown in the photographs and missing from your delivery.

Warranty Policy

• Warranty is for a full refund or exchange provided the item was purchased through PRP or one its approved resellers or workshops.
• Warranty is void if you tamper with products or bring them back in a different state to which they were sold to you.
• Warranty does NOT cover costs of shipping to and from in any circumstance.
• All Items/Products/Services purchased from Platinum Racing Products are to be installed by a qualified mechanic at an approved workshop and ALL warranty claims are dependent on proof of appropriate installation and verification of failure.
• Modifying your vehicle is illegal in some states and territories, the customer acknowledges that it is their responsibility to abide by the law and take the appropriate measures to ensure that their vehicle is roadworthy.
• Platinum Racing Products assumes no responsibility for any work carried out, modifications made or parts supplied with regards to road use. All our products are sold and intended for track use only.
• Lifetime warranty refers to certain Platinum Racing Products branded components and generally does not include 3rd party suppliers and their parts. Manufacturer warranty applies to items including but not limited to alternators, turbochargers, electrical sensors, ECUs and associated parts, tyres, etc.
• Due to customer and external components not supplied by PRP, flat drive oil pumps and components are limited to 1 yr warranty with specific cases reviewed before honoring. Spline drive will remain to have lifetime warranty, but again only after specific review.
• All refunds and warranty claims are based on back to base review and parts will need to be returned to HQ for assessment unless otherwise arranged.