i got a VAFC last night, and if someone can help me with the setting.

it's a 2000 Si
i have CTR cams, CTR ECU, JDM ITR 4-1 Header, ITR intake manifiold, ITR CAI

i lowered the VTEC crossover, but don't know what to do for the fuel setting, and help is great

 

sounds like a good package man.
where did u get the ctr ecu?? and how much?
i have ctr cams in my 00 si and i like em a lot.
i have the vafc set as the following but i strongly recommend you get it tuned on a dyno. here are the settings.. you want to lean out the high vtec point because the ecu dumps a lot of gas (runs rich)

low vtec : 1000 rpm to 5000 rpm -3 on fuel
high vtec : from 5200 to 8000rpm -4 on fuel.
vtec cross over set at 5400 rpm. dont lower it too much or you'll lose power.

try not to go below 5400 on ctr cams.
narrow throttle at 20% wide throttle at 40%

just play around with the fuel curve until you get to a dyno but dont lean out more than 5% because you might be running lean and hurt your engine.
i think its safe to go up to -5%.
have fun with it dude.

 

Call me dumb, but in my R we leaned it out by going +6 all the way across, wouldn't going into -'s richen up map? It's the air flow/fuel that is being adjusted not the fuel itself...My dyno results showed going + is what did the leaning...now i'm confused...

 

i didnt wire my own VAFC but i do know that - should lean it out..., could you have a crossed wire ?

 

hey fellas, just go get dyno'd. the parameters vary from car to car. i guarantee you'll be surprised at where the settings need to be from where they are. don't be cheap about a dyno cause that's where reliability and power comes in.

 

the only way you are gonna find settings for youre car is a dyno or just street tune it. find open land and do 1st-4th gear pulls up and down while someone tunes the VAFC for you. everything is different for each car, temprature varies, humidity, elevation etc. so dont go around using someone elses VAFC settings.