Camaro ChriSS

I hate having to ask this because I know it just screams "" hit the search button", but I cannot find a clear answer through searching so far.

My set up is about 420 rwhp or 520 bhp. I'll be doing more upgrades in the future (FI, say a year or two down the road at earliest with maybe 7#), so I am wondering if it is wise to build for the future with bigger injectors now, or to go with what is optimum today, and then upgrade again in the future.

30# sounds about right currently for me (depending on who you ask - some say 42# is better, based on the math at 80%), but I'd need to obviously upgrade later. General consensus seems to says this is optimum.

42# would allow me some good expansion, but will it be too big for now? I get the implication from some posts that it may not be as easy to tune at idle. In my opinion, I don't want to build for the future if its just going to be a pain for now. Based on RC's web site basic formula, 42# would seem to be a safe size.

Thanks in advance.

YellowToy/A

iTrader: (1)

I got 42 and no problem witht the tune. I saw no difference with the 42 and stock as far as idle. Go 42.

Camaro ChriSS

Thanks. Your set up is pretty close to mine. Did you tune yourself?

NVR KNO

i have no where near the mods as you. i have only longtubes and lid with dual cutouts and a dry shot. i went with 42lbers and they work great. idle is perfect. get the 42s.... better to be on the safe side.

Camaro ChriSS

Again, thanks. Glad to hear its not a concern.

Talking to sponsors, I decided to order the 42# injectors. Plus a new fuel pump while I was at it.

NVR KNO

good choice.

brad8266

iTrader: (23)

42's all the way, they dont cause any minimum pulsewidth issues, even on a mild bolt on car.

Thule

great threat! helped me alot sice noone answers mine's