Fuel Pump(EFI) - Walbro Universal 255lph In-Tank
This brand new, GENUINE WALBRO 255LPH High Pressure in-tank fuel pump can support over 550hp (at the crank) when supplied with 13.5Volts, normal voltage is 14.2 volts with engine running. Includes sock filter and installation instructions. The included inlet filter sock meets or exceeds original equipment specifications and provides improved filtration and durability. Can flow anywhere from 0-115 psi, which is determined by your fuel pressure regulator. Toyota's stock regulator pressure is 42 pounds. This is an aftermarket performance fuel pump and some small modifications may be needed. If you receive the pump and have read the included directions, but still have questions, please call our tech line.
Remember, having too big of a pump is not a problem, but in some applications with an OEM stock regulator you may need to upgrade the regulator to avoid issues with too much flow for the OEM components. Return style fuel systems, such as all the vehicles these pumps work with, have any extra fuel returned to the fuel tank through the return fuel line. Because of this, as large a pump as the stock lines can support is fine, even with a stock engine!
Boosted applications that see higher fuel pressures can still make 550 hp with this pump, but not when over 90 psi because the fuel heats up and can cause problems. Also, a fuel pump can't pump when it doesn't get enough voltage. If you are running high horsepower in the 450+ range you should upgrade your wiring and relay to support your new high flow fuel pump properly or your fuel pump may suffer low flow rates due to low voltage if your stock wiring is too thin and relay too weak.
The most common failure of fuel pumps is debris and over heating. These problems are preventable and not covered under warranty. Always clean you tank before install. Always run a filter.
Contact our Tech Support Line for further information at 928-855-6341.
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