Ok so it seems the S-AFC is an important upgrade for most TII owners that have the BPU's done, so id like to know what exactly this device does, i mean i have a general idea but id like to know specifically from ppl that have them.
If i get one do i need to put my car on a dyno to tune it?? If so thats a pain in the *** cuz i dont know of a place that would do that for me around here nor how much theyd charge me
If not is this unit easy to use?? Or does it require a master techincian degree to function.
And finally what kind of gains does one get from this kind of device
Guys any and all responses would be helpfull
Thanks!

 

It does require tuning. There are two types of tuning you can do for it basically, dyno and street.

Street tuning you have to use an af gauge. Unfortunately, a lot of gauges out there are cheaply made for rice boys with stock civics to look cool. So you have to be pretty picky about what you buy (autometer = cheap/bad). Dyno tuning is more expensive (a lot of shops around here charge 70$ cdn/hr). You living in boston are probably looking at 40$/hr (30-40min setup, then 2 or 3 runs in 20 min, the second hour you get more done obviously). But dyno tuning is way more accurate and will get you better results. You can street tune the s-afc and leave it running a little rich until you can get on a dyno. Its critical you get accurate readings and set it up properly or you will cause the motor to lean out and you wont have a motor.

If you are some what knowledgeable you can install it yourself, its not too hard. I just dont like playing with the ecu as its a pain in the *** to get at.

If you get a s-afc you may as well get a walbro 255lph fuel pump put in there before you start tuning. It makes things easier to have it from the start.

Another thing I would suggest if you want to get a little more power out of your car is water injection.

 

The Super-AFC's primary function is to modify the airflow meter's input to the ECU. Considering this is the main input to the ECU as far as how much fuel gets injected, this does work quite well.

You can tune your fuel mixture by RPM to get the best power and driveability. It really is pretty easy to install and tune.

Go to http://www.apexi-usa.com for a full description. You can also download the manual from them.

The only problem with the Super-AFC is it really only works well to *remove* fuel, not to add it. That's why many people install larger fuel injectors then tune them in with the Super-AFC. This setup has been proven to handle pretty much anything you want to do with the stock turbo, and will make around 260 to the ground.

You really can tune one in with a simple AF gauge as long as you understand it's limitations and what information it gives you. Heck, we tuned stuff like that for YEARS back when a wideband O2 cost $5000 and NO ONE had 'em. Cheap widebands just make people lazy .

Dale

 

They work well to remove fuel because when you start using small injectors in high hp applications you need insane fuel pressure to get the flow you want. I dont understand why, but a lot of japanese tuners do this and its stupid. They put 3 fuel pumps on to make a set of 720cc injects flow like 1000cc injectors and crap. Its so stupid imo.

 

Ok so upgrading injectors is really key here before getting the S-AFC right?? Cuz i mean the stock system prob isint even giving me what i need considering my mods. By the way they are:
3" dp
2.5" midpipe
Single N1 exaust
Walboro fuel pump
FCD
INtake
Gauges for boost, water
bla bla misc ****...

 

You could probably throw some bigger injectors in for the secondaries and get by with that (im not a tuning guru )

 

is this a mod that could be done to an N/A? or is it a waist of money without my turbo on?

 

not much of a gain for a NA unless you got some serious internal mods and need the extra fuel

 

Extra fuel? Try a lot less fuel for a na...