Need input on initial S-AFC settings w/ stock inj

[mitsugsx95]

Heres what I got:

16g
190 walbro
stock inj
egt
pocketlogger
turbo back 3' exh.
intake
supra SMIC
hks bov
usual stuff.

I am getting my S-AFC in a couple days and need some advise on some initial setting to go for at first. I don't want to blow my car up by making it super lean, but I want to make a little more power safely on the stock inj for now. I know everyones car is different, but I would like to hear some settings that people have done on thier cars that worked well.

 

[ChicagoGSX]

Set it to 0 for the low settings, and on the highs everything after about 3k have it +5 or +10. That should give you a margin of safety at 15 psi.

 

[Blk_99gst]

Originally posted by ChicagoGSX
Set it to 0 for the low settings, and on the highs everything after about 3k have it +5 or +10. That should give you a margin of safety at 15 psi.

WTF? O.K I was agreeing with you on the setting the correction values for "0" for the low settings. But why in the world would you want to richen things up at the top end of the high settings? If anything you could tweak the high corrections to minus one or two percent, to lean things out a bit and make more power. Right now without the safc installed on his car is the same thing as running all zero corrections for high and low settings. Why would you want to richen up 5 or 10 percent when or cars run so rich from the factory!?!!?

Either way, my advice is just to leave both high and low corrections at "0". Learn how to use the safc; its menus, understand the pocketlogger, and then get some 660cc injectors and tune, and enjoy great timing advance with the 660's!

 

[mitsugsx95]

I know I need some new injectors ( I am getting 550's soon), but cant I still tune with the stock injectors to make a little more power?

 

[paperboy]

i would suggest using at least a digital o2 meter or doing the blue wire
mod, but when i ran my t-25 with intake and exhaust i had to run
+ 5-8 % accros the board on the high side to keep o2 volts at min of
.945

 

[04DrBlur]

Do NOT do the blue wire mod. The results are not right and it is too much for the ECU.

 

[crashed97tsi]

I agree, I heard many bad things about the blue wire mod. When I had my stock injectors in I was running about -2%. Just use the logger to view your advance and see what you got. Every car is different so it's hard to see what exactly to put down.

 

[paperboy]

i've also heard both sides on the blue wire mod, and all cars are diff.
but on mine w/o a logger it's the best tool to tune with and u can always
disconnect it when your done. otherwise your just flat out guestimating.
i have yet to notice any adverse effects and i have run it both hooked
up and not, but each car is diff.

 

[kpt4321]

Don't use the blue wire mod, use the logger.

Tune the low throttle settings with the fuel trims.

http://home.attbi.com/~tarryo/kyle/tuning.html

....Kyle T.
93 TSi AWD "TURBO4"
14b - 12.8 @ 108

 

[Blk_99gst]

I agree; don't do the blue wire mod. And since you have the stock injectors, you shouldn't have to touch low settings at all, and I don't think you can tweak out much if any extra power by leaning the stock injectors out; just get some 550's or 660's. My vote would be for the 660's = better timing advance.