PROFLOW POLISHED 2.5LT FUEL SURGE TANK DUAL OUTLET SUIT TWIN BOSCH 044 2.5L AN

PROFLOW POLISHED 2.5LT DUAL OUTLET SURGE TANK WITH -AN FITTINGS

Proflow’s new surge tanks are a great way to help prevent fuel starvation and provide consistent fuel delivery to engines under harsh driving conditions.  Prevent engine damage by making sure your fuel pumps have a constant supply of fuel. 

These aluminium surge tanks feature a quality polished alloy finish.  Featuring approximately 2.5 liters of capacity, these tanks provide your fuel system with the safety reserve that is needed in high power cars. The tanks themselves feature ORB ports and are then supplied with fittings to suit.

Not all surge tanks are created equal!  These quality surge tanks are made from a high grade robotically welded aluminium.  We also stock a range of accessories including fuel pumps, fuel pump brackets, filters, braided line, fittings and more!

• Proflow 2.5lt Dual Outlet Polished Surge Tank with -AN Fittings
• Dual fuel pump outlets to suit twin fuel pump setup such as twin Bosch 044
• High quality & design
• Polished finish
• Approximately 2.5lt capacity
• -10AN Fitting for the two fuel pump outlets, -8AN for the rest
• Robotically welded
• Surge tank dimensions approx 250mm height (not including fittings) x 110mm diameter
• Base dimensions approx 175mm x 155mm
• Suitable for use with many different external fuel pumps including Bosch  044, 085 & 910 & Walbro GSL392
• 100% Genuine Proflow part guaranteed
• 12 month warranty

Vehicles fitted with Electronic Fuel Injection (EFI) from the factory have what is called a surge tank or swirl pot in the fuel tank - so when you’re accelerating or cornering, fuel can’t rush away from the fuel pickup, causing the engine to stall or surge. A surge tank is necessary when fitting EFI to non EFI vehicles. The surge tank acts in the same manner as a swirl pot, supplying an even flow of fuel to the injectors.

To convert some carbureted vehicles to EFI, we recommend fitting a fuel surge tank to avoid fuel feed problems, especially during hard cornering. This is also useful on many high powered EFI cars which have poorly baffled tanks. The surge tank stores a small amount of fuel for the high pressure pump to pick up if flow from the main tank is interrupted for any reason.

Usually the tank is mounted in the boot. Fuel is piped to it by either a stock engine driven mechanical pump or a low pressure electric pump. Often the stock electric pump can be used. A high pressure EFI pump will be mounted below the surge tank. The fuel gravity feeds into this pump and goes to the fuel rail. Fuel not used by the engine is returned from the rail, through the fuel pressure regulator, to the top of the surge tank. From here, if the surge tank is full, fuel is returned back to the main fuel tank. The schematic below shows a common setup for both EFI and carby conversion setups: