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Common Question...

Discussion in 'HYBRID -> EG-EK / DC' started by DiGiTal66, May 18, 2003.

  1. DiGiTal66

    DiGiTal66 Junior Member

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    what is Vafc? dont know what it is, i'd like to know what it does and where its at. thanx
     
  2. xj0hnx

    xj0hnx I wanna be sedated VIP

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    Vtec Air Flow Converter

    [​IMG]

    It is a piggy back computer for adjusting A/R ratios and vtec engagement,it is located at your local speed shop,or on line.
     
  3. RejecK

    RejecK Junior Member

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    Pissedoffsol (sorry if name is wrong man) said "another vafc hack job waiting to blow up :D" in a post in general about a turbo civic with 311 hp.

    so what is the hack? and why does it have to blow up?
     
  4. eyesonlybob

    eyesonlybob Senior Member

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    i think he was just saying that that turbod civic prolly wasnt tuned properly with the vafc.
     
  5. xj0hnx

    xj0hnx I wanna be sedated VIP

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  6. pissedoffsol

    pissedoffsol RETIRED

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    haha nice quote :)

    basically what it comes dwon to, is that honda computers dont know what the fuck to do with boost. when it senses boost over 2 or 3 psi, it throws a code from the map sensor.

    by running larger injectors, and tuning them DOWN to like -40% at idel, and so one, the vafc hack alters the voltage signal going to the ecu. so even though its seeing say, 10 psi, the -40% fuel curve drops it down under 2-3 psi, and thus doesn't throw a code.

    its a hack, plain and simple.

    it isn't great at fighting detonation, and it isn't great for tuning.
     
  7. NewAgeCivicz

    NewAgeCivicz Senior Member

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    If your using the Missing Link, can you still use the Vafc? Is the Vafc worth 300? I was looking at hondatas and they look to be about the same price but it looks to be that you get more from the hondata?? Does the hondata completely replace the ECU or piggyback like the Vafc?

    Thx in advance :blink:
     
  8. Tonyd0821

    Tonyd0821 Banned

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    does the vafc take the place of a boost guage and a/f guage?
    and can you also adjust boost on it?

    if so,

    1) how much should i look to pay for one
    2) is it reccomended to install it yourself?
     
  9. xj0hnx

    xj0hnx I wanna be sedated VIP

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    I wouldn't pay more than $300,I got mine from Jason for $310 shipped :)

    But it doesn't seem that hard to hook up,just grab some patience,wire cutters,soldering gun and basic tool set,and go.A couple hours maybe.
     
  10. Tonyd0821

    Tonyd0821 Banned

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    does it monitor boost and a/f?
    and can you adjust boost with it?

    on a greddy 15g kit that is....
     
  11. xj0hnx

    xj0hnx I wanna be sedated VIP

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    A/F,not boost.No you can't adjust boost with it.
     
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