fuel system questions

[Reconisance]

i've used search, and it seems to me like everyone knows this info, so no one explains it
#1 when is it necessary (or wise) to upgrade fuel pump/injectors/rail etc.
#2 i read about duty loads or cycles, but how do you measure, or come up with those percentages?
i believe im on the stock pump and injectors, and i was thinking about 24#'s and just thought i'd like to know when i would (or if i would) need them, if i stayed N/A
i am just asking for motor though, i realize being forcefed would require much larger injectors, etc.

oh and if someone can tell me the *easiest* (if there is such a thing) way to test injectors

thanks in advance

 

[Paul]

If you do a mild heads/cam/intake making around 280-300 rwhp, then you can put some 24# injectors on there. Otherwise, your 19s are fine.

I've never, ever, seen an injector fail, so yours are probably working fine.

 

[Reconisance]

thats good.
i guess my problem is that the car idles roughly, and when applying constant pedal pressure, it feels like a dirty injector or the timing is slightly off or something, WOT is fine. it may be a clutch issue, but i thought i'd ask about the injectors
thanks