Walbro GSS341 255L Fuel Pump Working pressure equal to 6.5 bar, capacity 255 l / h Purpose: universal Walbro high pressure fuel pump for use in sports cars and tunings. While serial pumps at 5 bar are able to supply approximately 130 liters of fuel per hour, the Walbro pump has a capacity of 255 liters, which allows the pump to be used in 500 HP engines. Designed for mounting in the tank.