Apexi on a bimmer ?

[nmpnow1]

hey just wondering if n-e body heard of hooking up an apexi AFC controler to there bimmer cuz some guy i met says he got an m3 and AFC hooked up i dont belive that he has it but i never heard about it on a bmw

[Blackwidow]

Originally Posted by nmpnow1

hey just wondering if n-e body heard of hooking up an apexi AFC controler to there bimmer cuz some guy i met says he got an m3 and AFC hooked up i dont belive that he has it but i never heard about it on a bmw

I've seen one before on a M3. No reason why it wouldnt work on a BMW.

Pretty sure you have to be OBDII. Just get a chip.

[M3BOYEE]

Aside from the plumbing, you probably want to ensure that it has an appropriate CFM rating for your setup.

[Rob ITR1035]

Originally Posted by M3BOYEE

Aside from the plumbing, you probably want to ensure that it has an appropriate CFM rating for your setup.

what are you talking about?



Of course you can hook an SAFC onto a bmw, OBD1 or 2, just a matter of figuring out the wiring. There's good gains to be had from fuel tuning, a local guy picked up 8whp with just that and dyno time.

[M3BOYEE]

haha, sorry - read that earlier this AM...read it as "intercooler" instead of controller

[nmpnow1]

Originally Posted by Rob ITR1035

what are you talking about?



Of course you can hook an SAFC onto a bmw, OBD1 or 2, just a matter of figuring out the wiring. There's good gains to be had from fuel tuning, a local guy picked up 8whp with just that and dyno time.

do u kno how it got hooked up ? or where i can find the wireing for it

[kwaliph]

Does anyone know where i can find a wiring diagram for the safc for a E30 173 ecu?

[lawdogg]

http://www.apexi-usa.com/documentation.asp

There is the site but I don't see any BMW applications. I am in the process of installing the SAFC on my 3000GT ... if you know what wires from your ECU do, you should be able to solder the right SAFC wires onto them.

But you really shouldn't use the SAFC unless you have some logger of some kind so monitor 02 voltages, EGTs, knock, etc etc... a simple Autometer A/F guage isn't gonna cut it. The SAFC is essentially lying to the engine... and if you tune it the wrong way, it could cause some serious damage.

But I don't know. Be careful.

[Rob ITR1035]

or just tune on the dyno.

[kwaliph]

Ok. I found a pin skematic and it looks like the safc doesnt work on e30s.
The safc requires a Throttle position sensor and e30s are equipped with two switches; idle switch and full load switch. Also, the RPM signal doesnt exist on the dme skematic. I would imagine i would just connect the rpm signal wire from the safc on the ignition coil negative but i dont know if the safc is capable of reading a rpm signal that's not from the cluster?