S or V afc?
 

I only see the VTEC control as the difference? I have D16Y7 so I dont have VTEC but thats not to say some day I wont. Should I get the V-AFC or the S-AFC? I am currently putting together my buy list. Thanks in advance.

Re:S or V afc?
 

GO V, same price for an added feature

Re:S or V afc?
 

If you plan on VTEC eventually, then get the V-AFC.
If you never plan to get VTEC, get an S-AFC.. they're both almost exactly the same. The S-AFC has an extra input that you can monitor voltage.. O2 is what it is normally used for.

Re:S or V afc?
 

Thanks for the response. So I can disable the VTEC function? If so I will get the V-AFC. It says its good for VTEC/iVTEC ecus. I dont have VTEC, it will still work? Do I just disable the high cam setting?

Re:S or V afc?
 

There is no "disabling". Just don't connect the wiring for it.

..and there is no low and high cam setting. Only narrow and wide throttle. Tune both, your TPS percetn is the changeover.

Re:S or V afc?
 

Thanks for the info

Re:S or V afc?
 

Actually, yes there is a low and high setting, as well as narrow and wide. There are four total to set on the vafc. Just set the high for whatever you would set it for out of vtec. You might have to adjust a few other things too, since the low side normally doesn't go all the way to red line. I'm not sure if it would automatically use the vtec settings for the rest of the way to red line or not. Ask someone who has done it.

Re:S or V afc?
 

Oooooooo ya.

D'er. [me=TurboEF9]stamps "I'm a dumbass on his forehead".[/me]

Yes, there is low, and high settings on both (having actually walked out to my car to look at his V-AFC). I had forgotten. d16tuner is 100% correct.

I know narrow and wide is done based on TPS (someone correct me if I'm wrong here..), however, what is the indicator that switches between the low and high settings in narrow and wide?

Re:S or V afc?
 

It should be using the high settings whenever the ecu engages vtec and the pretty red light comes on. That is why I'm not sure would happen on a car without vtec - since it won't get the signal. I'll bet it will just continue to use the highest fuel setting on the lvt map. Either that, or I expect it would fall on it's face when all that fuel get's dumped. Surely someone has tried this and can comment...

Re:S or V afc?
 

Well, I've run it with a turbo without he VTEC wired hooked up (probably about a month or so) and had no issues. Hrm..

I also never noticed a red light come on when I was in VTEC.. sheesh.. $300, you'd think I pay attention to the little bastard somemore when I was using it.

Re:S or V afc?
 

So I should just get the S-AFCII? Now that I think about it, if the turbo is enough I wont go VTEC anyway. Maybe just a B18B. I'll just get the S so I dont end up fucked.

Re:S or V afc?
 

the SAFC is nice because it has dual maps which you can set for multiple boost levels and then change from one to another when you want. With the vafc, you have to go thru and reset all of the maps, which would be a pain.

EDIT: Note, only the gen2 safc has this option, the other one did not. But since that is what you are looking at, I think it would be a better option for you over the vafc since you don't have vtec now.

Re:S or V afc?
 

Thanks for all the input guys!

Re:S or V afc?
 

It seems to me that the safc2 has significant better features than the vafc. What about the vafc2, is better in the sence that you can run mulitple boost levels without having to reset your maps. You'd think that this feature would be available on the vafc2 as well, is it?
I'm torn between them as well but I have a Vtec model engine (Y8), and would really enjoy the multiple map feature.

Re:S or V afc?
 

Jason mentioned that the SAFC has an extra input to monitor sensor voltage that is normally used for the o2 sensor. Which wire from the SAFC is the input wire??? I know I had a few wires left over from my install. I didn't see anything in the instructions for the SAFC.

Re:S or V afc?
 

It's the blue wire on the SAFC.
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Re:S or V afc?
 

Unless you've done headwork, I don't really think you will see much gain from changing the vtec spot. It is set optimally from the factory. And the dual bands ARE used on the vafc, just for the high and low cams instead. So that feature is already used on the vafc - for vtec. And the vafc2 doesn't have knock monitoring, which isn't all that great of a feature on the safc2, but still. Personally, I love my vafc, if only for the cool vtec light. But the safc is cool too.

Re:S or V afc?
 

These dual bands you speek of, are they the same as the dual map capability of the the SAFC?
They're just just for Vtec instead, just want to make sure. If so than, ONLY THE SAFC2 has this feature. BTW I have a A6/Y8 motor with no Vtec activation yet, thats why the VAFC sounds good as well, but I know there are other methods of activation. I'm leaning more towards the SAFC for that particular feature, I'd like to run 7psi daily and 10psi weekend, so you can see why SAFC sounds tempting. I'd hate having to reset my maps every time I want to run different amounts of boost.

Re:S or V afc?
 

That is correct. What do you mean, "no vtec activation"? Are you not using a vtec ecu? If you are not, I don't know that using the vafc alone would help you. If you have a vtec ecu wired to a y8 (I'm guessing you are using a y8 head and z6 block?) you do not need the vafc to activate vtec. You only need it if you want to alter the engagement point. I'm not saying it definately isn't possible to do it that way, but I don't think the vafc is as elegant in it's implementation, since the ecu uses several other factors besides rpm to determine when to engage vtec. If I was you, I'd just get the vtec ecu and safc.

Re:S or V afc?
 

A V-AFC will not engage your VTEC solenoid on its own. It has to feed through a VTEC ecu. I'm getting the S.

Re:S or V afc?
 

False.

I run OBD0 setup with a V-AFC, run the pink wire directly to your VTEC solenoid. Ta-da! VTEC activation.

Re:S or V afc?
 

Well there you have! :o