Thread: Tuning advice?

I'm having issues getting the afr good all the way around. I've got it at 13.0 wot, which is where I want it, but while cruising it's ~15.8, and at idle it's high 17's-low 18's. I've got the k-value down to 27000, and have the latency at .95 lol. I'm running ve injectors and the n60 maf, and just can't seem to get everything where I want it. I know that messing with the fuel map would help but I've never done that before.


Help?

Anybody have any fuel maps setup without the highlighted parts? As in no stock 02 feedback?

The conventional wisdom is to adjust your K value based on you idle and light load AFRs, then dial in WOT by adjusting the fuel map. You seem to have gone about this in reverse. I didn't check out the latency value you cite, but I wouldn't suspect that you would need to change that at all if you have an appropriate base tune.

At this point, I'd either start over (don't blame you if you groaned) or try switching to feedback values in appropriate parts of the fuel map.

Well it just depends on how you look at it. Adjusting the latency ONLY affects idle and light load/low rpm areas, so it did what I needed. At this point I've got the wot and idle good, by changing the idle section of the fuel map. The key is that my car no longer has the stock 02 sensor or even it's wiring lol. So all the highlighted feedback area is needing attention. Considering my odd combination of parts, tuning is not going to be simple and I can't really go by what other people have done. I can't think of any other NA de's running 333's, N60, 4bar, and big cams lol.


Once I get all this sorted out, I have to use the nitrous and readjust for it lol.