will 480cc injectors run too rich????

[lukesr20det]

Ok so my stock injectors (370cc) are goin bad so i bought some 480cc's. my question: WILL THEY RUN TOO RICH??? and if so what would i need to do to make it run a little more lean? fuel pressure regulator? ecu reflash? if i can just drop them in on the stock ecu that would be great haha. thanks for the help guys.

heres a list of mods on my motor

-redtop sr20det w/garret t25 at 10.5psi
-hks actuator
-oil relocator
-oil cooler
-splitfire coilpack
-hks highpower exhaust
-stage 2 clutch
-z32 fuel filter
-walbro 255lph high flow fuel pump
-Nismo thermastat

[Carbomb]

people drop in 370 in ka and run em no tune...
Id retune on a sr tho..
rom tune
romisburning.com

[LigouriRd]

people drop in 370 in ka and run em no tune...
Id retune on a sr tho..
rom tune
romisburning.com

Sure people put 370s on a stock Ka...with E85...or a N60 maf. Niether will run very well. The flow difference between the two 270-370 or 370-480 is too great for your ecu to compensate. There are no reflashes for this vintage of ecu. To tune it properly your going to have to get a piggyback (SAFC, Emanage, IFC...), a daughterboard (Nistune, misc rom tune...) or go stand alone.

[Slidin' Sam]

It's not really worth swapping 480's into your stock set-up. Just get some more stock injectors. If you DO drop these in, you will definitely need AT LEAST SAFC to compensate, but through my research/talking with tuners, you will probably want a rom tune, which is why its not worth it. If your gonna rom tune, you might as well do it along w/ turbo change/boost up, cams, maf etc. save your money, but stock for your set-up.

[lukesr20det]

i think im just gona hold onto them until i have my full set up. t28, z32 maf, fmic, ecu, etc... and install them then. thanks for all the help guys. in the mean time, would it be a bad idea to run chevrons techron to clean the 370cc's??? ive heard many different opinions about this "techron" stuff.