what a/f should i be running??

**Wisconsingrandprix** · 03-20-2012

i have a wide band and it runs 10.5 ish on a zzp tune and imo its supper rich so i was wondering if i could leave the tune and drop one pulley to make up for the extra

**Fivefingerdeathpunch** · 03-20-2012

Whats the timing and any KR at WOT?

10.5 is not terrible, mail order tunes tend to run rich because that better than running lean.

I run anywhere from 8-9.5 AFR, because my tuned is ****ed, and its ran okay LOL, and yes I will get it fixed.

If you are not showing any KR and everything seems fine, a pulley drop may be okay, you'll have to watch and see how the car takes it.

**matt5112** · 03-20-2012

11.0 - 11.4 would be more ideal.

**TheOtherNick** · 03-20-2012

11.4-11.7 non i/c is ideal

**matt5112** · 03-20-2012

Even intercooled, that range is nice.

**Wisconsingrandprix** · 03-21-2012

how much you think i would drop my fuel down with one pulley drop??

**darkhorizon** · 03-22-2012

Originally Posted by Wisconsingrandprix

how much you think i would drop my fuel down with one pulley drop??

wut

**James Case** · 03-22-2012

11.0-11.6 non ic is ideal the leaner you can get it with no kr the better but no to lean ive seen some people run 12.2 with fullsize ic.

**Sandman** · 03-22-2012

I just tuned my car, it decided to be happier at 12.5 13.0 than 11.3 like I had it dialed into when I was tuning. Around mid 11s is where you want to be.