Fuel injector upgrades?

[JBRacer]

I have a 97 altima and was wondering what fuel delivery upgrades are available to match my other mods. Any help?

[nismo96ka]

u said match your other mods. what are your other mods? unless you're boosting i personally see no need in replacing the injectors. u can buy a nismo fuel pressure regulator that is adjustable and i'm pretty sure u can buy nismo injectors. but if u don't have enough air to match the fuel then it's pointless. i know a lot of guys say to upgrade the ignition coil and wires... why? i've seen 400+hp cars using the OEM plug wires. but to each their own. if i'm not mistaking, when u replace the injectors u may need to update the ECM...once again i'm not sure on that. anyone who knows lemme know.

[JBRacer]

I have a short ram intake with upgraded 60mm throttle body(thinking of going bigger). 2" header and downpipe with 2.5"high-flow cat and custom cat-back exhaust. Also have a IAC speed chip which barely adds any help to the engine. I just replaced my fuel filter which seemed to help but im thinking an adjustable fuel pressure regulator would provide the most help to me. On that note what is the usual psi to run it at. The stock fuel pump can only put out 65psi max. Granted I was thinking that around 40-50 psi would be sufficient at this point to run at the regulator. Suggestions?

[nismo96ka]

yea 50 at the most... did u recalibrate the ECM after swapping to a bigger throttle body? if u didn't then the ECM still assumes you have the stock sized throttle body and won't adjust the fuel properly.

[JBRacer]

No I didnt actually. Is that something that I could possibly do or do i have to send it off somewhere?

[nismo96ka]

you'd more then likely have to send it off unless u have a shop near u that does that. i know that Jim Wolf Technology does it. u can send them you ECM with what mods u have and that will calibrate it accordingly. and being that you didn't recalibrate it, i'd dare say that's the major source of your probs.