Specific Fuel Pressure Regulator Mitsubishi Lancer Evolution EVO X 10 - Gold Series - Bonalume RPBEXG

Unlike the adjustable regulator, this model also offers the advantage of having a 1/1.4 ratio.
To help you understand better, I""ll give you a small example.

CLASSIC SYMMETRIC FUEL PRESSURE REGULATOR.

PRESS. BENZ. INITIAL CALIBRATION – 3 BAR +

TURBINE BOOST PRESSURE - 1 BAR =

FINAL FUEL PRESSURE RESULT 4 BAR

Now in this condition, if we needed to give more fuel to our engine because it runs lean, we should act on the pressure register and increase it enough to bring it into carburetion at medium and high speeds. But if the carburetion turns out to be very lean, we would also have to greatly increase the pressure regulation, thus DIRTYING the carburetion at low levels (with the obvious consequences of torque losses, pollution, consumption and immediate deterioration of the catalyst).
Therefore we should find a compromise by making do with what we can do. Conclusion: dirty delivery at the bottom, almost good at the mids, and bordering on thin at the highs.

With the ASYMMETRIC regulator 1/1.4 this problem disappears, as the percentage of increase is asymmetrical to the turbine pressure, example:

PRESS. BENZ. INITIAL CALIBRATION – 3 BAR +

TURBINE BOOST PRESSURE 1 BAR =

(input of 1.4 bar of fuel pressure) FINAL FUEL PRESSURE RESULT 4.4 BAR

In addition to being asymmetrical, it is also progressive, so the increase in pressure is proportional even to the low turbine pressures, every tenth of a bar of the turbine will lead to an increase of 1.4 tenths of fuel pressure.
Furthermore, it is also adjustable, and is also interchangeable with the original regulator, so no modifications need to be made for assembly. No inconvenient and dangerous pipes loaded with fuel pressure to carry around the engine compartment

SPECIAL REGULATOR FOR MITSUBISHI LANCER EVO 10.
100% INTERCHANGEABLE WITH THE ORIGINAL.
DO NOT REQUIRE ADAPTERS OR ANYTHING ELSE FOR INSTALLATION.
ADJUSTABLE FROM 2.5 TO 7 BAR.

Characteristics