SAFCs

[nashstyle]

Do SAFCs work on Starion/Cordia motors? I've heard two different arguments.
1. They wont work on throttle body injection motors, with only two injectors.
2. They will work because all it needs in an AFM and a MAP sensor and it will be happy.

Can anyone confirm or deny?

[NachoMan]

And just what the hell is an SAFC?

[Junkers]

I second that

[nashstyle]

Apexi Super Air Flow Converter

[Cookiemonster]

SAFC: Super Air Flow Converter also known as Super Air Fuel Controller. Its a piggy-back fuel computer that adjusts fuel/air ratio by modifying the air-flow meter/MAP sensor signal before it reaches the factory ECU.

[gotrice?]

safc controls the air and fuel ratios. mainly the fuel, from what i understand it tricks the computer into running more/less fuel.

s-afc thats an apexi item isn't

i want to get one for my starion but don't know if there worth it
ant users experiances with these devices?


gotrice?....aka....urban on the cordia forums

[nashstyle]

Well I kinda need something, and an SAFC is pretty much my cheapest option (which is the main issue for me). My cars running rich as a pimp so I need to back up the fuel some how.

[limau]

i'm using it on my starion motor but do nothing much,just to "fine" tune air/fuel and the most of all fancy look in ur car.run on karmen vortec sensor for starion.also the rpm reading won't work well with starion

[NachoMan]

i'm using it on my starion motor but do nothing much,just to "fine" tune air/fuel and the most of all fancy look in ur car.run on karmen vortec sensor for starion.also the rpm reading won't work well with starion

huh?

Anyhoo, thanks for clearing that up.
I was thinking South Australian Football Club myself...

[gotrice?]

okay yous posted while i was typing hence me stating that its an apexi item which anyone can tell by the pic,

BUT... the pic is the second edition s-afc. Theres the one before s-afc it which is just a black box with knobs and no display, there pretty cheap now days

[nashstyle]

Yeh, I have found one on ebay, they pretty much do the sme thing except they are analog, I might give that a go.

[SpidersWeb]

The SAFCII does not interfere with the injectors. Whether your car has two injectors, or 50, it makes no difference to the SAFC II.

All it does is take the signal from your airflow meter (yes its supports Karman Vortex), modifies it by the percentage, and sends result to ECU. Basically it lies to the ECU, telling it has less or more air coming in than there really is.

So whoever said it wouldn't work on TBI, Id like to hear what their reasons were. Because it doesn't alter the signal between the ECU and injectors, it alters it between the AFM and ECU.

Remember tho, the ECU will still cut if the injector duty is too high, SAFC will not and can not remove this cut.

There are actually three generations of AFC:

-> Apexi S-AFC - has knobs etc
-> Apexi S-AFC - digital with arrows
-> Apexi S-AFCII - digital with circle button

The knobs one is very inacurate, does not take throttle readings in to consideration, and lots of other things. The digital models are pretty sweet though, altho 2nd hand price still seems to be 300-400.

[Xentro]

Don't know if they'll work on a staz.

I'm not sure on all models but on my '83 2000 ex (same as a JA) there is both a MAP and a MAF signal
it uses the MAF(karman) for off boost and the MAP for On boost to determine how much to inject
I don't think you can wire the S-afc in between both sensors at the same time.

So you may have to try tofind out how it would work best
In between the MAF or inbetween the MAP.

[nashstyle]

Spiders: Thats exactly how I understood it, but this guy who told me (will remain nameless) just made me think twice.

As for which sensor to hook it up to, I'm pretty sure it has to be the AFM, because even on boost, the ECU will be using its signal in conjuntion with the MAP...AFAIK.

[WANTSOM]

I have NFI.

:o

Oh and I asked Kelfy and he had even less. :P