OD (large): 50mm
OD (small): 39mm
Flow rate: 450 LPH @ 13.5 Volts / 416 LPH @ 12.0 Volts
Walbro’s 450 LPH “turbine style” in-tank High Pressure fuel pump is the single highest flowing Intank pump we offer. Designed to reliably meet the fuel-hungry demands of turbocharged gasoline high performance engines, this pump is remarkably quiet and heats fuel less, due to the turbine rotor design. Walbro Engineers based the overall design on the same 39mm motor from the proven 255HP but changed from the old “gerotor pump” to a high performance “Turbine pump”. They also revised the motor assembly to allow for PWM fuel pump control or standard +12V. The turbine pump head uses two sets of turbine blades set in parallel on a common shaft (like a jet engine). The pump design pressurizes the fuel as it flows through the pump axially, without forcing the fluid to change direction – the end result is tremendous flow rates at a variety of different rail pressures and to suit various injector sizes.
This pump is a great solution for high fuel requirement turbocharged cars >500hp and anyone looking to make big power and run high boost with a simple fuel system where the 255 won’t suffice. Also suitable for high-performance GDI engines such as Ford EcoBoost F150 and Mustang.
The Walbro 450 is a simple drop-in install for many vehicles such as nissan s13/s14 240sx, turbocharged 88-01 Hondas and Acuras, Ford EcoBoost and many more. GC and GD subarus can use this pump, although certain year STI’s will want to remove the STI fuel filter (intank) + swap to WRX filter on firewall. Modifications may be required for certain vehicles due to the large 50mm base – Evo8/9 and 2006+ Hondas will require slight modification to the stock housing (we do not offer this currently).