GSRacer

will i be able to idle 440's on my gsr w/ a V-AFC? will it be glitchy? what should i get, or what should i do?

ArizonaTurbo

We were able to get 370cc injectors to idle, but it does sputter a little when you lightly tap the throttle or when you are getting on it and you are not in boost. Once you are in boost, they work fine. I think you will have a problem with the 440cc injectors!

TurboSedan

I think 440 are not impossible, but it will be very difficult if at all possible!!!

dbman96

It's not that big of a deal; I'm on 450s on a GSR turbo and it idles fine. You have to remember that the VAFC is only affecting the idle when it's starting and the O2 sensor hasn't warmed up yet. Once the O2 sensor heats up the ECU goes closed loop and it automatically trims out fuel until it idles right. I've had my VAFC set at anywhere between -25% and -40% and no trouble idling; it sometimes takes an instant longer to fire up when I crank it if it's really cold. That's all.

HX_Guy

Haha..wishful thinking Dbman

Try and tell my car that

chri5

I have 440s and a VAFC and it idles fine as well.

dbman96

Well I figure since Chris and I both have GSRs and have no trouble with it, and he's asking regarding a GSR, I think he'll be OK.

VTC_CiViC

440's and VAFC work on my Civic..

HX_Guy

I guess since I only have 10 inches of vacuum at idle it runs rich! Damn monster cams

dbman96

Now see, you run those silly big cams and you blame everything on the poor fuel injectors!!!

TypeC

just a side note, the WRX has 440's stock. Since some people are upgrading already, this might be a cheap upgrade (assuming you get the fitament and type issues straightened out). just an idea.

-C

Turbo EG6

Same here I was running 440's with a S-AFC and it was fine.

GSRacer

thanks guys, i was having nightmares thinking that i ordered the wrong size injectors.

jinxproof99

you'll be fine.

liam821

i run 450cc DSM injectors with a afc..idles fine (sohc) - my friend runs 450cc DSM injectors with a afc in his b16a also without problem.

liam