Vafc
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From: Hernando MS
Vafc
Does anyone know how hard it is to tune the VAFC by APEX'i ? How much does it cost with harness unit and can a door be bought where it sits in the radio door?
Please pm me pics and reply.
Thanks So Much
Eric
Please pm me pics and reply.
Thanks So Much
Eric
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From: Laguna Niguel
To tune a VAFC you would need a Dyno, and someone how knows what he/she is doing.
The VAFC 1 goes for abotu 250-300 new, and the wiring harness goes for about 150 new. A new unit, the VAFC II has just come out, It lets you tune a little more than the VAFC I did, and this unit goes for around 300-350 new.
The radio door that is precut for the VAFC to fit was a custom job done by someone on this board (Cyber Logic I think), I think the only way to get one now is by buying it off someone used.
The VAFC 1 goes for abotu 250-300 new, and the wiring harness goes for about 150 new. A new unit, the VAFC II has just come out, It lets you tune a little more than the VAFC I did, and this unit goes for around 300-350 new.
The radio door that is precut for the VAFC to fit was a custom job done by someone on this board (Cyber Logic I think), I think the only way to get one now is by buying it off someone used.
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Actually, the V-AFC should be the 1st mod, since it makes the MOST difference on a stock motor. With a perfect tune, you can get 10 RWHP just by adding a V-AFC to a stock setup. Adding a V-AFC after an I/H/E might only get an additional 5 RWHP. The reason is because the V-AFC is used to lean out the fuel mixture to the optimum AFR. The I/H/E will do some of this leaning as well, so the V-AFC will be less beneficial.
For example, if your stock AFR at 8500 RPMs is 11.5, then you could probably gain 10 RWHP by leaning it out with a V-AFC to 13.5. An I/H/E might raise the stock AFR to 12.5 without the V-AFC, so you might only gain 5 RWHP from leaning it further to 13.5 with a V-AFC. I use peak as an example, but this is really not where the most gains are achieved with the V-AFC. I gained most of my power at midrange and redline.
For example, if your stock AFR at 8500 RPMs is 11.5, then you could probably gain 10 RWHP by leaning it out with a V-AFC to 13.5. An I/H/E might raise the stock AFR to 12.5 without the V-AFC, so you might only gain 5 RWHP from leaning it further to 13.5 with a V-AFC. I use peak as an example, but this is really not where the most gains are achieved with the V-AFC. I gained most of my power at midrange and redline.
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BTW, the V-AFC is only as good as its tuner. I suggest finding a "V-AFC Artist" with a wideband sensor (ie. Ultimate Lurker). A V-AFC with a $100 crappy tune is worthless. If you can get a perfect tune for $150, it will be the biggest bang for the buck you can get without a Turbo or SC.
