bigger injectors


civicek9

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Joined
Oct 29, 2007
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hi, i want to know if i want to put bigger injectors to my engine, because i bought skunk2 pro2+ camshafts, valvetrain, ratainers..etc and ECU - Hondata S300..i will use 100octane fuel..thanks for your answers
 
I would say standard injectors will be fine unless your increasing engine capacity...
 
OEM should be fine, but it cant hurt to upgrade if your going to be dyno-tuning it. It will only hurt the wallet. You may want to upgrade your fuel pump tho.
 
im running i/h/e on my b16b and my tuner told me to get injectors because the stock ones were maxed out.... i would suggest it because theae motors from what ive seen tend to run lean
 
im running i/h/e on my b16b and my tuner told me to get injectors because the stock ones were maxed out.... i would suggest it because theae motors from what ive seen tend to run lean

i/h/e with no ECU adjustment would make it run lean. I would not try to suggest your tuner is incorrect, but what good is a larger injector if you can not tune it? Another way around this lean issue if you do not have a programmable ECU would be to run the fuel pressure higher via fuel pressure regulator, 40psi to 50psi for example.

civicek9, same goes for you if your getting it tuned via Hondata, make sure to install a fuel pressure regulator and pressure gauge, the tuner may need to tap it a tad.
 
im running i/h/e on my b16b and my tuner told me to get injectors because the stock ones were maxed out.... i would suggest it because theae motors from what ive seen tend to run lean

If your maxing out the standard injectors with just I/H/E then there is something a miss. Fuel pump or regulator isn't making or maintaining correct pressure
 
sorta like the spec on my head but i have upgraded injectors.not sure wat code but there rc
 
I have RC310 injectors and they are running just fine. i am planning to get walbro fuel pump, fuel rail and FPR and having a remap with all my other mods. i think you will be fine just dont get too big ones
 
I would upgrade to atleast 310cc, but it's hard to say, we need to know your power goal, I'm guessing your aiming for 220whp? OEM might handle it with higher fuel pressure, its best to ask your tuner.
 
Would 550cc injectors be ok on a 200whp build, they will obviously be mapped when installed, will there be any down sides to this? just trying to futureproof my motor
 
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