Surge Tank (SPR400V2) Single, Twin & Triple Fuel Pump

Surge Tank (SPR400V2) Single, Twin & Triple Fuel Pump

Brand: Aftermarket Industries
Product Code: SPR400V2
Availability: In Stock
Price: $1,585.00AUD
Ex Tax: $1,585.00AUD

Available Options

* Fuel Pump Bracket:

Stainless Steel Fuel Pump Filter:

Bosch Fuel Pump:

Bulkhead Fitting:

Hobbs Switch:

Power Distribution Kit:

Fuel Pressure Regulator: Horsepower Rating:

Walbro Fuel Pump:

Surge Tank (SPR400V2) Single, Twin & Triple Fuel Pump Surge Tank (SPR400V2) Single, Twin & Triple Fuel Pump Surge Tank (SPR400V2) Single, Twin & Triple Fuel Pump Surge Tank (SPR400V2) Single, Twin & Triple Fuel Pump Surge Tank (SPR400V2) Single, Twin & Triple Fuel Pump Surge Tank (SPR400V2) Single, Twin & Triple Fuel Pump

SPR400 V2 Surge Tank Special Features

Single Fuel Pump Port

  • 8AN fuel fuel ports

  • Perfect fuel pressure control

  • Staged fuel pump operation

  • Superior fuel pressure stability due to our design protected 3-to-1 fuel pump manifold

Plug & Play
  • The SRP400 V2 features the Aftermarket Industries 6 way (30A per pin) Plug & Play electrical connector to allow independent control of up to three fuel pumps.

Bio-Fuel Compatible

  • Zero fuel vapour loss

  • Zero fuel smell GUARANTEED due to anodising process

  • Unleaded, Ethanol, C16

  • 2.5 Litres or 0.66 Gallons


  • Precision machined from aerospace grade 6061-T6 billet aluminium, designed using best practice engineering principles and stress tested to ensure maximum safety for all motorsport applications

  • Plug & Play 6 way (30 amp per pin) electrical connector - independently stage fuel pump operation for 1-3 fuel pumps.

Compatible Fuel Pumps

  • Walbro 255

  • Walbro 460

  • Walbro 520 / 525

  • Bosch BR540 (RECOMMENDED) (Also known as the DW400)

Wiring Guidelines: Required For WARRANTY

Fuel Pump Qty Main Power Wire

Fuel Pump Power Wire

Relay Wire Size

Relay Size Fuel Pump Circuit Breaker
Single Pump 10 AWG Tefzel Mil-Spec 22759/34 10 AWG Tefzel Mil-Spec 22759/34 16 AWG Tefzel Mil-Spec 22759/16 35A-50A

25A-30A Circuit Breaker or Fuse

Twin Pump 4-6 AWG Main Wire Tefzel Mil-Spec 22759/16 (50A-60A Breaker/Fuse) 10 AWG Tefzel Mil-Spec 22759/34 16 AWG Tefzel Mil-Spec 22759/16 50A 25A-30A Circuit Breaker or Fuse
Triple Pump 4 AWG Main Wire Tefzel Mil-Spec 22759/16 (80A Circuit Breaker/Fuse) 10 AWG Tefzel Mil-Spec 22759/34 16 AWG Tefzel Mil-Spec 22759/16 50A 25A-30A Circuit Breaker or Fuse
  • Electrical Wire & Circuit Size Formula
    • Circuit Breaker/Fuse Size: 125% (1.25x) total Peak Current (Amps)
      • ​Circuit Breaker/Fuse must NOT exceed wire current rating
    • Wire Size: 150% (1.5x) total Peak Current (Amps)
    • Relay Size: 225% (2.25x) total Peak Current (Amps)

*Fuel Pumps are NOT included in this package: If you wish to add a fuel pump to your order please add the pump type and the quantity you require to your order from the AVAILABLE OPTIONS above - "Walbro Fuel Pump" or "Bosch Fuel Pump".

SPR400 V2 Surge Tank Power Support Guidelines

Fuel Pump

Power HP


Power HP

(Unleaded & C16)

Base Fuel Pressure*


Total Fuel Pressure**




1x Walbro 460


600 40*



1x Walbro 520/525 & Bosch B540


700 40*



2x Walbro 460


1000 40*



2x Walbro 520/525 & Bosch BR540


1300 40*



3x Walbro 460 1400 1500 40* 80 13.5v-14v

3x Walbro 520/525 & Bosch BR540

1500 1600 40* 80 13.5v-14v


(Recommended Fuel Injector: Bosch Motorsport 1650cc)

**Maximum Peak Fuel Pressure (Base Pressure + Boost Pressure)

***Maximum Voltage

Rotary Engine: Reduce Horsepower HP Support Figures by 30%


Add a Fuel Bulkhead Fitting: A major issue with any aftermarket fuel system is a pressurised overflow from the surge tank back to the OEM fuel tank. A common mistake is the use of adapters; the OEM return in ALL instances is far too small and MUST be modified to ensure the fuel flows freely from the surge tank back into the OEM fuel pump module. We've now developed a super flow profile -8AN fuel bulkhead fitting to address any potential issues. Simply cut a small 20mm hole in the OEM module and secure the bulkhead fitting.

Need a Fuel Pressure Regulator? We've made the decision easy and added the most suitable fuel pressure regulator based on the fuel pump selection to the AVAILABLE OPTIONS above "Fuel Pressure Regulator".

Turbosmart Regulator FPR2000

Need a Stainless Steel Fuel Filter (Walbro Only)? Aftermarket Industries developed the first and only 200  micron fuel filter / strainer designed for motorsport conditions and bio-fuels such as ethanol (e85): see AVAILABLE OPTIONS above - "Stainless Steel Walbro Fuel Filter" (select the desired quantity)

Need the Correct Electrical Connector? High current draw fuel pumps such as the Walbro 460, and Walbro 520 require a high performance external e85 electrical connector. We've developed our own as the OEM Delphi Apex 2.8mm 6 way connector are NOT e85 compatible - two (2) connectors are required and ARE included FREE (includes 6x pins per connector and is designed SPECIFICALLY for 10 AWG (30A) Tefzel Mil-Spec 22759/34 wire

Aftermarket Industries 6 Way Connector (Female)

Power Distribution Kit - See AVAILABLE OPTIONS above - "Power Distribution Kit" (Select 2 Way/Dual Fuel Pump or 3 Way/Triple Fuel Pump)


Do I Need To Stage My Fuel Pumps? YES! Fuel pump operation MUST be staged via a Hobbs Pressure Switch, Aftermarket ECU or PDM. See AVAILABLE OPTIONS above - "Hobbs Switch"


  • 4 PSI Hobbs  Switch
  • 24" inch harness with 2x female Delphi 280 Series Connectors & 1x male Delphi 280 Series Connector (includes pins)

Hobbs Pressure Switch

Package includes the following items: Requires Assembly (estimated assembly time 30 minutes; assembly guide provided)

  • SPR400 V2 billet 2.5 Litre surge tank (-8AN fuel ports)

  • Billet push-lock fuel pump adaptor fittings

  • Viton rubber 0-rings included

  • Stainless steel fasteners

  • Billet fuel pump hanger (includes Viton sound dampening rubber fuel pump inserts)

  • Plug & Play 6 way male electrical connector kit (includes stainless steel circlip, o-rings, two (2) female straight connectors and 12 wire pins)

  • E85 compatible fuel pump/bulkhead hose​


Is all this too overwhelming? Don't worry, you're not alone!


Fuel System Advice (FREE)

*These products are designed for race use only and must be correctly fitted by licenced automotive professionals or workshops. Aftermarket Industries is not liable for personal injury, death or for any damaged whatsoever arising from any accident or incident where these conditions are not satisfied.

*These tanks MUST not be pressurised, If you plan to use a high volume in-tank fuel pump you MUST use a-8AN fitting as the Overflow fitting located at the top of the surge tank. This will allow the fuel to return back to your fuel tank or fuel cell at the same rate fuel is supplied into the surge tank. Some vehicles may require modification of the OEM fuel pump assembly: If you are unsure, please complete the contact form and we will respond to your questions.

*It is your responsibility to ensure that the Product is sufficient and suitable for your purposes and meet your individual requirements. We do not warrant that the Products will meet your individual requirements. You acknowledge that the Products are standard and not made bespoke to fit any particular requirements that you may have.

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