SpankedYA!

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.

d16tuner

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.

SpankedYA!

Thanks for all the input guys!

2genCRX

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 (Y, and would really enjoy the multiple map feature.

willahlborn

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.

Dr.Boost

It's the blue wire on the SAFC.
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d16tuner

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.

2genCRX

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.

d16tuner

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.

SpankedYA!

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.