need info on vtec control

[CIVIC SI K20]

i need start up or settings for a 2003 civic si . i have a cold air intake ,dc headers & exhust & a vafc2 vtec control ,thats making lose power because i cant figure out some good start up settings for the vafc2 vtec control. so if u have some good settings that can help me please let me know cause i need some help. thanx

[EmminoDaGreat]

leave them alone, take it to my dyno and let us tune it.

[loneSTAR]

vtec engagement at 2200 rpms until secondary at 5800...

there has always been talk among the a3 crowd that those things hurt performance or for that matter don't even work....

[allmotoronly]

vtec engagement at 2200 rpms until secondary at 5800...

there has always been talk among the a3 crowd that those things hurt performance or for that matter don't even work....

yea they are pretty much only worth a damn on the B/H series engines.... everything else only gets minimal gains with a VAFC...

[nbennettksu]

yea they are pretty much only worth a damn on the B/H series engines.... everything else only gets minimal gains with a VAFC...
...and J series :D

[KPowerEP3]

Yeah. VAFC really is no good on the A3, and for god's sake do NOT mess with the VTEC engagement point, the A3 doesn't have the traditional VTEC like you'd think of, it's more like the first stage of the old VTEC-E system.

Welcome to IA, by the way. If you have any more questions just let me know, I'll be happy to answer them.

[nbennettksu]

I've heard these vtec controllers trash your engine....?

[CIVIC SI K20]

YO THANKS FOR THE HEADS UP ON THE VAFC2 CONTROLER SO CON I GET IT TUNED FOR THE AIR AND FUEL, AND LEAVE THE VTEC ALONE

[ZedEx]

Pay a tuner to do it, if you don't know what you're doing. That's what they do.

[TRUTH]

Let mainstream tune it

[Vteckidd]

buy KPRO and ditch the AFC

[Gutling]

you have a intake and exhaust, you dont need to tune nothing, ditch the vafc

[ZedEx]

^ Not true.

Tuning a stock engine with an intake, header, and exhaust can yeild quite decent results over a stock ECU.

[speedminded]

^ Not true.

Tuning a stock engine with an intake, header, and exhaust can yeild quite decent results over a stock ECU.I'm sure the stock ECU compensates for changes within the intake runner, air temperature, map sensor, fuel, primary & secondary 02's, etc. so i can't imagine too much of a gain...may be able to smooth out the curve though :2cents:

[JDM onlyy]

^ Not true.

Tuning a stock engine with an intake, header, and exhaust can yeild quite decent results over a stock ECU.

x2... thats why when you guys put on bolt-ons and complain about not having power its because you didn't get it tuned for your new bolt-ons..of course you aren't going to make any power if you don't get it tuned... :D

[Gutling]

its not worth the 3hp for someone that believes he put "headerS" on his car vs the potential for him to fuck it up by playing with it

[CIVIC SI K20]

YAH NOT COMPLAINING JUST WANTED TO SEE IF SOMEONE CAN HELP ME UNTIL I GO GET IT TUNED