If anybody has a link to the VAFC hack instructions i'd appreciate. Alond with any other things that i need to do with it. Do i have to run 450's or can i use something else. I did a search but couldn't find directions. Thanks.

 

I just bought an S-afc, I asked the same question, I ended up reading everypost in *Search* under: hack, safc, s-afc, vafc, v-afc. I learned a great deal from taking a couple hours and reading everything. I'd give u the link to the thread but I'm at work and don't have the bookmark here.

 

Some info...

https://honda-tech.com/zerothread?id=192982
http://www.thedropshop.tv/vafc.htm
https://honda-tech.com/zerothread?id=137901

I'm using it myself

 

Intructions are great. Just wondering if I should leave the fuel correction point settings (NE-P:HVT and NE-P:Lvt) alone. I know the instruction says to make it to 1000 to 8000 on both settings but there are min and max limits.

Also have anyone compare the VAFC reading of intake pressure (kg/cm2 to their boost gauge. My reading is always - mmHG even at full boost of 6lb.

THanks

 

i wonder what the settings will be with a lower boost level like 6 to 7 psi

 

Here is my setup. I'm sure it's different than most...

I have my correction points set at 1k-8k with 500rpm increments. I run my unaltered MAP signal into the MAP input AND TPS input of the VAFC. Lo throttle is set to 20%, Hi throttle to 55%. 55% TPS (remember it's reading MAP voltage) is right where mine starts to read atmosphere. Narrow throttle correction ranges from -45% at lower rpms to -40% at higher rpms (-40% at idle). Wide throttle correction ranges from -40% at low rpms to -36% at higher rpms. Fuel pressure is at 42psi. I'll be going up to 46psi when I run my high boost setting (11-12psi) for safety.

I calculated these values with information about injector sizing from Hondata's website and off of actual pulse widths from a PM6 (CRX SI) fuel map dump.

Make sure you're not running any check valves of electronic limiters on your MAP sensor. Also, if you want the AFC to display positive pressure in it's graph and analog displays, go to the "etc." menu, under "graph scale". Select "Pr:" to read +1.0kg/cm2 and "CR" to read +/-30%.