Ecmlink WOT tuning

[xjokux]

I'm quite familiar with tuning it just a few questions if anyone has bit more knowledge on it. I've tried on ecmlink forums but they're hopeless at replying.

I have my afr matching to my wideband reasonable well on WOT by using the mafcomp sliders but my boostest is way off to actual boost. I don't have a log boost gauge and running 055 maf

I've google alot on this topic and it varies.

- Some say forget boostest and get the afr/wideband correct with mafcomp sliders
- Tune boostest within 5000-5500rpm with mafcomp sliders and afr/wideband with global fuel adjustments


Which is correct? Changing the global fuel is only for your injector size. It's running smooth no knocks on 20psi (actual boost) boostest reads (12psi).

I've read through this http://jeffgst.com/gmafcalibration1.html but changing so will throw out my afr/wideband match.


560cc evo8 injectors, 20g, lc1 wideband, 280cams

I've got logs if need be.

 

[4piknup]

Put a cruise and a 3rd gear pull up.
If your wb and afr are close all the wat to redline then you are pretty close. Your afr table should be matching your wb as well. So you adjust your table to what you want and start fettling your timing.

What ib boost and boost est doing at 5000 rpm?

 

[xjokux]

Afr and wideband are spot on all the way to redline except just before full boost, fuel ratio are almost identical to DA tables. Disregard the knocks, I've already started playing with timing to find the sweet spot and lowered the timing.

The only concern I have with boostest being incorrect is that the timing degree is tracking in the wrong cell. Ecu is reading boost at 9-11psi instead of 20psi.

Global fuel at -18%
Deadtime - 0
Fuel pressure - 43

Calcutation of global fuel for 560 is -25% through ecmlink but I've been told it's -18%

I get a rich spot at 4000rpm, I don't know why, only way i can get rid of it is using the fuel sliders at the rev range. Apparently its not the correct way of fixing things.