Fuel Surge Tank



  • Can be configured with single or dual pumps.
  • Dual Stainless Electrical Terminals with Teflon Seals, allowing the pumps to be staged.
  • up to 8ga wire to feed power to the pumps (not an option on competitors tank)
  • AN-8 O ring ports
  • Anodized in Black providing corrosion resistance when using E85
  • Viton O rings supplied with Teflon intank hose
  • 2.8L Capacity with single pump
  • 2.6L Capacity with twin pumps
  • Supports hose ends up to 150 degrees

Compatibility list Below

SKU: GFIFSTTWIN-1 Category: Tags: ,

What is a fuel surge tank?
A fuel surge tank (FST) is designed to prevent fuel starvation to the engine on vehicles with inadequate fuel tank baffling. Fuel is supplied to the surge tank by a lift pump, which in most cases is the OEM in-tank fuel pump.  The volume of fuel inside the surge tank acts as a buffer to always keep the FST pump(s) supplied with fuel, even if the lift pump starves momentarily. This volume is maintained by the lift pump as well as the fuel returning from the fuel pressure regulator. Excess fuel in the surge tank is returned back to the vehicle’s main fuel tank. The surge tank also provides a quick and easy way to upgade any standard fuel system without opening the stock fuel tank. This is an excellent fueling solution for vehicles installing large demand power upgrades such as forced induction.

Compatibility list

  • EFP-500
  • EFP-503
  • EFP-504
  • Walbro GSS340
  • Walbro GSS341
  • Walbro GSS342
  • BF255 E85
  • Walbro F9000262 E85
  • Walbro F9000267 PUMP
  • BF450
  • Walbro F9000274 E85
  • BF450LP E85
  • Walbro F9000285 E85
  • BF525 E85

Additional information

Weight 8 lbs
Dimensions 10 × 10 × 10 in
Fuel Pump

No Pump Included, BLACK FLAG (PN# BF255), BLACK FLAG (PN# BF450), BLACK FLAG (PN# BF450LP), BLACK FLAG (PN# BF525)