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Location:
Central Coast, NSW
Registered:
May 2002
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Apexi S-AFC + Atmospheric Blow Off Valve
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Thu, 18 November 2004 06:59
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Hi All,
Does anyone here use the feature of the digital SAF-C to make up for the lack of air going into the engine when using an atmospheric blow off valve on a car running an air flow meter? I'm in the market for a new BOV and would like to see how successful the SAF-C is with this setup.
Thanks guys
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Location:
Sydney
Registered:
September 2004
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Re: Apexi S-AFC + Atmospheric Blow Off Valve
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Thu, 18 November 2004 07:37
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I have that setup on my car (S-AFC + Atmo BOV + flap AFM), but have yet to put the bigger injectors in so it is not yet calibrated to correct fuel flow yet (Corrections always at 0). I wasnt sure if the S-AFC actually had that option in it to lean the mixture out when venting...
how would it know when your venting? surely the signal from the TPS wouldnt be enough, because you can close the throttle without hitting boost...unless it can be configured to go off the TPS and AFM.
Looking at the 2 channel gauge display (AFM & THR) when venting thru the BOV the AFM spikes as air is drawn thru despite the throttle being closed, is compressed by the turbo then vented. Are these the condition the S-AFC needs to compensate??
Anyone have a definitive answer?? this has peaked my curiousity now!
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Location:
Central Coast, NSW
Registered:
May 2002
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Re: Apexi S-AFC + Atmospheric Blow Off Valve
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Thu, 18 November 2004 07:46
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I don't think i'm as technically adept as you  All i know is that the S-AFC does work with the TPS as it is displayed on the readout as i'm driving along ie %20 throttle is displayed when my foot is %20 down on the accelerator. You can also go into a diagnostic mode which displays different voltages on the screen, one of the voltages raises up and down when the accelerator is pressed and the let go
that is the extent of my wealth of knowledge... about... stuff
Dan
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