I was just wondering if anyone had any tuning settings for their VAFCs on their 3.5s. Mine was professionally tuned, so I don't need to change anything. Just wanted to see what others had. I will post up my settings shortly. I just wanted to see what other people had that were running an I/H/E setup.

 

Here are my settings. I don't know what the tuner did to factor -2% after 4k RPM. I can't find the settings for that anywhere.

Wide Thr - LVt 10 RPM +0 [next button] HVt 40 RPM +0

Narr. Thr - LVt 10 RPM +0 [next button] HVt 40 RPM +0

V/T Cont - L -> H: 5800RPM
- H <- L: 5400RPM

V/T Unmt - Hi<<L: +0%
- Lo<<H: +0%

TH - Point - Lo 10% Hi 50%

Ne-P: HVt - Ne1 - 4000
- Ne2 - 4500
- Ne3 - 5000
- Ne4 - 5500
- Ne5 - 6000
- Ne6 - 7000
- Ne7 - 8000
- Ne8 - 9000

Ne-P: LVt - Ne1 - 1000
- Ne2 - 2000
- Ne3 - 3000
- Ne4 - 4000
- Ne5 - 5000
- Ne6 - 5500
- Ne7 - 6000
- Ne8 - 6500

So to me, it doesn't look like any correction is taking place. But, when in Monitor mode, I have it set to watch correction and sure enough, after 4k, it starts dropping from -0.1 to -2.0 near 6500. Any more insite on this would be good. Also does this look like it should? Anything that should be changed? Thanks

 

part throttle starting at 30%-70%
tuned to 12.8-13a/f

idle-2800rpms 0
3100 -2
3300 -2
3600 -3
3700 -3
3800 -4
3900 -4
4000 -4
4100 -4
4200 -6
4300 -6
4400 -5
4500 -7
4600 -7
4700 -7
4800 -6
5000 -4
5200 -4
5400 -4
5600 -3
5800 -3
5900 -3
6000 -3
6300-redline -3

wot
tuned to 13-13.2a/f
idle-2800rpms -3
3100 -5
3300 -5
3600 -6
3700 -6
3800 -6
3900 -6
4000 -8
4100 -8
4200 -8
4300 -8
4400 -9
4500 -8
4600 -8
4700 -7
4800 -8
5000 -5
5200 -6
5400 -7
5600 -5
5800 -4
5900 -7
6000 -7
6300-redline -7

I also had the low to high crossover set at 4500rpms

 

your looks wrong a vafcs has 24 tuning point and you don't

12 before the crossover point and 12 after and if your crossover rpm it 4500 then your low tune should not go above that and your high should not go below that

btw these corrections were for a 4.5 gen with shorty header, y-pipe, exhuast, ssim and a pftb with the fuel psi set at 35 idle and 43wot

 

You probably have a VAFCII. I just have a VAFC. I was just wondering if there were slight adjustments I could make to make it run better.

What I would really like to know if how to tune it myself and how to remove or add air/fuel.

 

yes I had the vafc2 only thing that really changed is the amount of tuning point the crossover thing still applys

it's really easy to tune go on the apexi website and read the instructions

 

Just in case you weren't aware, you can't do any further tuning without a wideband o2 and datalogging, or more dyno time. Altering your A/F ratio without knowing what it is is dangerous.

 

Yes, I am aware of that. I just wanted to see what other settings people had so I could try them out next time I tune with a wideband.

 

^ that's a pretty stupid idea as well.