Fuel Pump(EFI) - Walbro Universal 255lph External w/Mount Kit
This brand new, GENUINE WALBRO 255LPH High Pressure in-line fuel pump can support over 550hp (at the crank) when supplied with 13.5Volts, normal voltage is 14.2 volts with engine running. 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.
This fuel pump is perfect for mounting to your frame rail or other location outside of the fuel tank. Pump flows 255 liters per hour- more than enough for most high-performance Toyota engines. Comes with install kit. Requires the use of 10mm x 1.0 male fittings.
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 the relay is too weak.
The most common failure of fuel pumps are debris and over heating. These problems are preventable and not covered under warranty. Always clean your tank before install and always run a fuel filter.
Contact our Tech Support Line for further information at 928-855-6341.
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