halik

I'm eager to hook the stuff up - it looks pretty straight forward, i just need to find a way to sneak the cables thru the firewall.

DaveInSaltLake

Year? Model?

halik

96 a4

SiV6Qcoupe

I tried using something similar to the SAFC on my supercharger installation with 330cc injectors so I was reducing the MAF signal all the way down to idle but had problems with tuning the idle as the more I reduced the MAF voltage, the less timing advance I had untill the engine stalled still very rich. In your case you are doing the opposite, tuning standard injectors to flow more fuel. I think you will find that you will require larger injectors.
Another issue is where do you place the MAF? before or after the supercharger? I first placed the MAF before the charger and had difficulty tuning the air/fuel ratio using a SAFC. Something else to consider is if you run an intercooler and assossiated plumbing the throttle response from a "before" mounted MAF will be laggy and again even more difficulty in tuning with a SAFC. In the end I used the tried and tested rising rate fuel regulator from Cartech which is the adjustable one which has a fair amount of adjustability plus the additional tuning offered by the SAFC. To run the RRAFR I removed the 4 bar fuel regulator for an adjustable one set to 34psi and replaced the stock injectors for 185cc ones so at boost pressures I don't run too high fuel pressures.
Running an intercooler you will loose about 1.5-2psi of boost which may be a way to drop boost pressure otherwise you will require a bleed valve or even some kind of restriction in the outlet pipe.

HTH.

Ever seen this on 12v.org?<ul><li><a href="http://www.12v.org/engine/index.php?section=hw&amp;ver=3">http://www.12v.org/engine/index.php?section=hw&amp;ver=3</a</li></ul>

halik

First you should put the MAF before the super charger because you want to measure the amount of cold air coming in. If you put it after the blower, the reading will be off (hot air expands -&gt; less o2 per a unit of volume) and the stock fuel map in the ecu will end up being rich.

Also SAFC can only adjust 50% more fuel up/down, so 330cc injectors were probably an overkill. I'm hoping that stock injectos will work just fine at 5psi or so. I'll probably end up having to buy a wideband o2 scanner to figure that out completly.

CrazyCab

<center><img src="http://pictureposter.audiworld.com/76266/kompressor.jpg"></center><p>
<ul><li><a href="https://forums.audiworld.com/9080/msgs/278291.phtml">https://forums.audiworld.com/9080/msgs/278291.phtml</a</li></ul>

Bryans12v

Seriously, I thinks its well over 50 pages for every pin. Its broken down into sections.