Rep Power: 379

well i put my fuel setup back to stock. so what i currently have is dx with d17a2, runing on dx computer being controlled by VAFC2. ex exhaust conversion(ex header with evo2 exhaust). and just swaped the ebay CAI for a AEM CAI(got it for $30). AEM pullies and and un orthodox underdrive pully.

I have the HI to Lo at 3900 but i think im gonna put it back to 4100 or 4200.

I am haveing problems tuning the thing between 2 and 4,000rpm. can anybody post how they have the wide/narrow throttle graph setup and help me out with my fuel curve. im running a little lean through 4000rpm. and when i try to adjust it i bog down. before anybody askes i don't have access to a dyno. so i street tune everything.

 
Rep Power: 811

To start, set the vtec to STOCK position ****. The shop put mine at 2800rpms, which is close to stock, but really it's more complicated and best to leave it to the ecu to figure out. I'll post more when I get home. I can't find that DH dyno thread yet.

 
Rep Power: 811

VAFCII tuning numbers: They only tuned the wide throttle, because the others were already pretty close. I have an auto, and they ended up using 2nd gear because 3rd didn't work well.

Also, they set the vtec to engage at 2800rpms, but I put it back to stock. I don't know exactly how the vtec works, but someone said you need 100% throttle to activate it and turning it on too low is bad (not enough oil pressure).

Wide High Vtec

2600 +4
2700 +4
3000 +4
3400 +4
3600 +3
4000 +3
4400 +3
4800 +3
5200 +3
5800 +3
6400 +1
6900 -2

vt cont (put back to stock ****)

L-->H 2800 rpms
H-->L 2700 rpms


Throttle

25% narrow, 80% wide

\

MODS AT THE TIME:

-NGK Iridium Spark Plugs
-Ground Wire Upgrade
-Sun Hyper Voltage System
-Apexi VAFC-II
-Optima Yellow Battery
-Ceramic Header
-DH Racing Ported Head Work
-B+M Transmission cooler
-Thermal Rear Section Exhaust
-Napa Gold Air Filter

 
Rep Power: 299

Gearbox your tuning is going to be totally diffent since have an EX ecu.


Ajhdragon i have had my car tuned twice now with the same setup as you, EX engine and LX ecu. During tuning they found that the car was running WAY rich before vtec point (4300) This is because the EX engine has 1 intake valve open, But the LX has BOTH intake valves open, Therefore its still suppying enough fuel for BOTH intake valves. from 2300rpm its at -8 then tapers off from there

2400 -7
3000 -6
3300 -6
3600 -5
3900 -5
4100-4
then at 4300 +7 to supply extra fuel for VTEC, since the intake valves are slightly larger on the EX head

 
Rep Power: 299

One bad thing about this set up is the LX ecu doenst advance timing like the EX ecu does.

 
Rep Power: 379

thanks for the help guys i really appreciate it. you guys have been repped.. and for the vtec engagement the vtec hi cam will engage at a lower rpm when it is at 100% throttle than, when under regular throttle. that is the vtec pressue signal. but under normal driving vtec hi cam kicks in at i believe at 4300. since the dx/lx computer has no vtec pressue signal the vtec pressue on the vafc 2 does not work. but the vtec signal by rpm works with the vafc 2. so that is why i have the vtec set at lower rpm because it will not kick in earlier due to pressure.

 
Rep Power: 379

oh yeah im gonna be able to advance my timing here soon alot easier and tune it how i want because i have a regirned cam and 5 bolt cam gear coming in.

 
Rep Power: 811

which 5 bolt cam gear is that? AEM? That's on backorder for a few more months. I'm one of the first in line to get one

 
Rep Power: 379

yup they told me it was on back order. but i hope its worth the wait. im not planning on putting the new cam in till after the official midwest meet in may. so i can wait.

 
Rep Power: 0

A little of subject but, why do you guys think the cam gear is going to make any power on a SOHC engine? I debated wheter to get one or not but cant see a difference that it will make?

thanxs..

 
Rep Power: 0

i have a vafc2, my vtec is fine but i lean out at about 3000 rpms. at 3k is about when i start gettin boost. ive tryed putting EVERY rpm at +50%! and i still go lean when i barely hit boost. anyone know whATS goin on?

 
Rep Power: 297

you probably tapped the wrong wire on the ecu to control your fuel... i actually did the same thing during the first time i installed mine and was wondering why i cant control fuel.. then i finally fixed it then i could control fuel... then my second problem was that i had my injectors maxed out so i would lean out when i had the turbo kit in my car.. so i had rsx injectors in my car added later

 
Rep Power: 379

when i get my new cam i will be able to better tune my car and gearbox is milled. so he needs one as well.

 
Rep Power: 811

Let's see if aem ever gets that cam gear off backorder.

 
Rep Power: 0

ok so i still need rsx injectors (gettin em) plz! what kind of sensor do we use pressure? karman? and what setting? 6 in 6 out? i fuked it up and forgot.

 
Rep Power: 811

there's a post in tech stuff already with everything.

 
Rep Power: 297

DITTO!!!!

if you cant find it heres the link for the VAFC2 install
http://www.7thgencivic.com/forums/sh...d.php?t=169767

 
Rep Power: 0

You guys know anyone that will do a vafcII tune? On the east coast though..

thnxs

 
Rep Power: 811

most places that have a dyno can do it. It's actually really easy just turning a **** to add or remove fuel depending on the a/f ratio the dyno figures out.

 
Rep Power: 0

anyone have the vafc2 with the tsi map unit together?