i installed my walbro 190lph fuel pump and cant tell much of a difference from the stock fuel pump. what is the lph on the stock one? i noticed that the walbro is about 20% smallar then the oem one. why is that? whats the difference?

i installed my walbro 190lph fuel pump and cant tell much of a difference from the stock fuel pump. what is the lph on the stock one? i noticed that the walbro is about 20% smallar then the oem one. why is that? whats the difference?
What was the exact difference you wanted to feel? :confused:

You are not goiing to feel ANY difference. Th epump supplies as much gasoline the engine needs. If the engine needs xxx lph then getting a pump supplying 2*xxxx lph does you no good at all. And that is IF your FPR can handle the pressure/flow. And that is assuning the pump does not warm the gas too much as the larger Walbros do. And so on...

As you understand, IMO you did very well by getting the 190lph and not the larger one...

As for the size... same reason you get the SR20DE in a small Sunny 3-door HB, in a compact size Sentra and in a larger size G20/Primera. Design considerations, cost, choice of the manufacturer, COST, any number of reasons...

Chris