AMS Tears into Fuel System
Again, the folks over at AMS Performance know their priorities, as the secret to good tuning is good fuel control. They took apart the fuel system, pulled out the fuel pump, and posted the results of some bench testing. The fuel pump looks easy to get to and provides nearly the same flow as a Lancer Evolution XI fuel pump – about 212LPH at 45 PSI. In comparason the Walbro 255 fuel pump squirts at around 280LPH at 45 PSI. You can check out their results here, or click “Read more” to see the images we have mirrored.
The fuel tank has a hump in the center for drive shaft clearance which basically splits the tank into two sections. This is what is known as a “saddle tank”. Because of the “saddle” design of the tank, a fuel transfer tube is needed to keep fuel on the side of the tank that the fuel pump is on.
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