AFC settings for my mods....

[NOSLO2PT0]

Before I go out chasing boost leaks, can anyone give a good starting point for high throttle settings for the following mods:

FP Green
660's (base 37psi)
Supra TT pump
93 octane
20psi
IRC FMIC

The car is stuttering at WOT. I'm getting no knock, the boost is very erratic according to the gauge, and O2's are reading right around .88V, sometimes even lower. Currently, the high settings are right around +20% across the board. Am I way off base by being too rich? Or just have a massive boost leak somewhere?

Thanks,
Mike

 

[cagri]

I would start at -15 Across on hi setting (not +20), then tune it from there.

 

[Nailz]

With the 2G MAS, you should definetely start off in the negative in the Hi throttle like cagri said.

 

[DSMJim]

studdering cause your car is choking on fuel. Hang on Im gonna get a funnel for your mouth pour a keg of beer down it and I want you to run 100m as fast as you can!

 

[jdmawd]

Originally posted by NOSLO2PT0
Before I go out chasing boost leaks, can anyone give a good starting point for high throttle settings for the following mods:

FP Green
660's (base 37psi)
Supra TT pump
93 octane
20psi
IRC FMIC

The car is stuttering at WOT. I'm getting no knock, the boost is very erratic according to the gauge, and O2's are reading right around .88V, sometimes even lower. Currently, the high settings are right around +20% across the board. Am I way off base by being too rich? Or just have a massive boost leak somewhere?

Thanks,
Mike

why are you +20 on the high table go learn how to tune your car and come back. Its stuttering because you are dumping more fuel than can be burned +20 on the high table at 20 psi with a green:laugh:

After you learn how to tune your car then look under the car and see if the 02 ground is connected properly to the down pipe. so you can get a more accurate reading on that irrelevant o2 number that you are referencing.

Also 20 psi is way to much boost for tuning you start around 15-17 psi Max and work your way up from there. Looks like you need to spend some time in the tuning archives before you blow your car up.

 

[kpt4321]

Just out of curiosity, what prompted you to set your SAFC at +20?

We're not going to give you baseline numbers, because every car is different. Tune the fuel trims, to get a baseline, then tune for WOT. Do it yourself, or you won't have good results.

...Kyle T.
93 TSi AWD "TURBO4"
14b - SMIC - 450's
12.8 @ 108