I have a 03 Z. I tried searching but i couldnt find answers specific to my questions. As a general, broad question: "Is it worth it, or gainful power-wise, to upgrade my fuel delivery system (pump/injectors)? "

some background on the car, It has 85K miles and airflow bolt-ons which include

• Stillen CAI
• 3/8 Plenum Spacer
• Hi-Flow Cats
• Megan Single Exhaust

so the car is breathing properly. Would a, say, Walbro 255lph pump and some bigger injectors be beneficial? or worth my time and money? What other factors should I consider? I have lot of air coming in and going out, more fuel to match would follow logic, right? I'm a bit of a noob in this regard. I'm an OBD1 BMW fanboi and those are a bit easier to deal with...

Thanks in advance for the time help and opinions, i really do appreiate it.

 

NOPE>

But you do need to increase fuel delivery via a flash and tune w those mods to get anything out of them.

lots to search on.. Osiris is usually the best bet.

 

I went to JDS Motoring in North Jersey. Jas did the tune, did a great job. Hit him up for an Osiris Tune.

 

Tune on the stock pump and injectors? Would you mind PM'ing me how much he charged you?

 

The stock fuel system is more than capable of handling bolt-on levels of performance, but you've gotta tell the ECU how much fuel to put in.. that's where the osiris reflash and tune comes in