At What Point Do You Need To Upgrade Fuel Pump ?

[gazman1968]

Hi guys at what point do you need to upgrade the fuel pump. How much K/W can the stock fuel pump handle?

[Brad-D]

I did mine once I pasted 300, on tuners advice.

Better Safe then Sorry and starving the engine

[RegSpec]

I was told, as a rule of thumb....

If you step up the injectors...then step up the pump as well.

[RAP1D]

Good idea to swap the pump when you do injectors, or if the car is getting high in kays.

A perfectly operation stock pump "can" support low 300s, but if your cars getting a little older then the pump may not be producing the same flow as it did when new... so cheap insurance to fit a new high flow pump.

Also the power supply to the pump has a huge effect on the pumps flow, so if your battery/charging system is getting tired and not producing the full amps/volts, it could be pumping alot less than it should, in turn not supporting as much power.

...and dont forget the main fuel filter, if dirty and old it can greatly restrict fuel flow... this is the same with the intank "sock" filter, they get dirty and clogged with age too.