New Injectors=More Fuel Pressure?

[~laser_craver~]

I need to know, if I get new fuel injectors for my car does that mean I need more fuel pressure as well?

 

[nine5raptor]

no

 

[steve]

Originally posted by ~laser_craver~
I need to know, if I get new fuel injectors for my car does that mean I need more fuel pressure as well?

No, you don't need more fuel pressure. You may need more fuel VOLUME depending on what your doing. Injectors are rated at some stated fuel pressure, within reason increasing the pressure will make the injectors deliver more fuel for the same opening time (makes them act like bigger injectors) and decreasing the pressure will give less. Depending on how big the injectors are you may need a bigger fuel pump to keep the pressure from dropping off at high boost and RPM's because the pump can't deliver enough volume (liters/hour).

Steve

 

[GSX4LIFE]

No. You do not need to raise the fuel press. And theinjectors themselves wil not raise fuel press.

 

[~laser_craver~]

yea thanks guys i was told i needed to but i didnt think so, so i asked thanks allot guys

 

[nine5raptor]

you may need to raise the line pressure before the filter (via a larger fuel pump) to get enough flow, but pressure at the regulator, no.

 

[L2RTSiAWD]

Larger fuel pump will defintley be needed if bigger injectors are going to be used.