recommended safc settings

[SiNiST3R]

you can view my car info pretty much all am messing is my 680s injectors i have stock as of now. Am wondering what LT and HT points i sould use? Thanks if ya can help me out.

 

[GSTspyder98]

well, there are guides already listed for how to set base settings on your afc, and how almost every application is different, but with your 680 injectors, you'll be running almost 50% over stock, which will def be rich as hell...

i have 650's, a 255 lph pump, and 50 trim, and @ 14psi, the settings will obviously change when i up the boost to about 21 psi high, and 15psi low,

and i have my TH settings @ 30%/60%

lt settings at

1K...-26%
2K...-23%
3K...-22%
4K...-20%
4.5K-7K...-20%

ht settings

1K...-25%
2K...-25%
3K...-25%
4K...-35%
4.5K...-35%
5K...-35%
6K...-38%
7K...-38%

hope this helps, but def should use a pocket logger, wideband, dyno, some sort of advanced tuning when you have everything set(injectors, pump, etc.)

 

[ITSME4G63]

well, there are guides already listed for how to set base settings on your afc, and how almost every application is different, but with your 680 injectors, you'll be running almost 50% over stock, which will def be rich as hell...

i have 650's, a 255 lph pump, and 50 trim, and @ 14psi, the settings will obviously change when i up the boost to about 21 psi high, and 15psi low,

and i have my TH settings @ 30%/60%

lt settings at

1K...-26%
2K...-23%
3K...-22%
4K...-20%
4.5K-7K...-20%

ht settings

1K...-25%
2K...-25%
3K...-25%
4K...-35%
4.5K...-35%
5K...-35%
6K...-38%
7K...-38%

hope this helps, but def should use a pocket logger, wideband, dyno, some sort of advanced tuning when you have everything set(injectors, pump, etc.)

holy shit you start out with -25 at 1k? shit maybe because of your turbo setup? I got a small 16g and I start out with like -15 at 3k, maybe im doing something wrong?

 

[Blk_99gst]

holy shit you start out with -25 at 1k? shit maybe because of your turbo setup? I got a small 16g and I start out with like -15 at 3k, maybe im doing something wrong?

It really depends, you're trying to compare a 1g car to a 2g car; different maf flows etc. So yes, for a 2g car -25 at 1k is right for 680 injectors. I'm running 660's in my 2g and I think my 1k is at -24%. 1g safc settings are different, so I wouldn't compare what you have to a 2g car. Also, what turbo you have doesn't matter for the low-settings. Low-settings are for normal driving, no boost, below 30% throttle, and closed loop mode on the ecu. You high settings will change depending on turbo, boost, etc.

 

[SiNiST3R]

Sorry about the miss understanding thats the answaer i was wanting but... My 680s are not here yet not till next month or 2 i was wondering what i should set it as of now with stock 450s. Right now i have it at :

lt

1K...-3%
2K...-3%
3K...-3%
4K...-3%
5K...-3%
6k-8k 0%

ht settings

1K...-0%
2K...-0%
3K...-5%
4K...-5%
5K...-5%
5K...-3%
6K...-2%
7K...-0%

Am not getting knock at all on WOT , but for some resaon i get 18ish at Idle

am also running at 16psi if that helps

 

[Blk_99gst]

My 680s are not here yet not till next month or 2 i was wondering what i should set it as of now with stock 450s. Right now i have it at :
lt
ht settings
Am not getting knock at all on WOT , but for some resaon i get 18ish at Idle
am also running at 16psi if that helps

You can try a few % tuning with the stock 450's, but I would just leave them at zero until your 680's come in. But I guess tuning a little doesn't hurt, it will give you an idea of how to use the safc and the pocketlogger.

I don't understand your knock comments though. You say you get none at WOT; how do you know. Us 2g's can't see knock. If you mean your timing isn't getting pulled then that's one thing. And what do you mean when you say you get 18ish at idle? 18 what, knock, timing? I doubt it's knock value, because you shouldn't be able to see it.

 

[SiNiST3R]

am seeing Knock with my S-AFC 2

 

[Blk_99gst]

am seeing Knock with my S-AFC 2

Ah, I see. Well if you read up on here, you will find that the safc2 knock counting doesn't work with the 2g or 1g cars. So what you are seeing may be some value, but it's not the knock value the ecu is using for its calculations. So my recommendation would be to disconnect that wire so you are not draining/altering voltage of the knock signal to the ecu. It's pointless to have it connected if the knock counting feature doesn't work.

The only true way to see 2g ecu knock count is to go with dsmlink. And that's pretty expensive!

Below is a cut and paste of a paragraph I like to post. The blue wire mod was for the safcI to see o2 voltage. But it can have some drawbacks. Hopefully you don't have the blue wire mod done too. Just wouldn't want your knock signal to get altered; it's kind of an important signal!
-------------------------------------------------------------
Blue Wire Mod Explained
Most voltmeters don't impose any effect on a circuit
because they are in the millions of ohms of resistance
range. If you want to meausure a the voltage of a low
resistance circuit this high resistance voltmeter is
not neccessary, and perhaps that was the design of the
AFC's blue wire mod. I'm not sure what that wire is
supposed to be used for anyway. For the o2 sensor, too
much current flows through the AFC, essentially
putting a load on the o2 sensor itself.

You might see a variation between the pocketlogger and
the afc, but more importantly, you will see a huge
difference if you put a switch on the blue wire. on
Watch the logger, and toggle the switch. Your o2's
will suddenly jump up to where they are supposed to
be. On my 420a NT talon the blue wire dropped the o2's
from .98 to .92 and caused the car to run extremely
rich in closed loop mode (with SAFC zeroed out).

 

[SiNiST3R]

Thanks for clearing that up, no i dont have the blue wire mod done. anyways thanks for the info.

 

[cfisher]

i didn't even realize the blue wire mod will screw up your real o2 readings. i've had it on there for 2 years now and disconnected it and the logged. my o2's went for .92 to .98 at idle just from taking it out. thanks guys.

 

[Blk_99gst]

i didn't even realize the blue wire mod will screw up your real o2 readings. i've had it on there for 2 years now and disconnected it and the logged. my o2's went for .92 to .98 at idle just from taking it out. thanks guys.

Yep, I hear that all the time after posting the cut and paste section about the harmful affects of the blue wire mod. Maybe I'll contact a moderator and see if they couldn't make the cut and paste section sticky at the top of the tuning section. Maybe more people will see it and undo their blue wire mod.