afr's through rev range

[CruiseGTi-R]

Does anyone have a good trace of RPM vs BOOST vs AFR of a good state of tune?

I got my afr to dip to 11.7 at 6.5k, but I'm interested in what in should be doing before this point i.e. going from stroich/cruising through to redline.

Should afr jump quite quickly to sub-12's or does it take a while to tail off as revs rise.

What afr's do you tune through the rev range?

 

[R called Jay]

I try to set mine to 14.7 at part throttle (of course) and 12.0 for full throttle at any revs.
If set right it should jump quickly to 12 once accelerator is planted.
I've only got an apexi afc though so it makes its own choices between my part thottle and full throttle settings, but as long as its fueliin nice top end a progressive move down afr with revs is fine with me.

 

[CruiseGTi-R]

If I plant my foot say in third gear, it'll be something like 13.5 at 3k, 13.0 at 4k, 12.8 at 5k, 12.1 at 6k and dipping to 11.7ish at 6.5k.

I'm just surprised it doesn't fall quicker.

(its half time, come on England!)

 

[R called Jay]

That depends on how you are controlling the fueling and what settings you use.
With the right controller and setup you can get it to changeafr the instant (near enough) you floor it.

 

[CruiseGTi-R]

I'm on stock ecu. I had high afr (used to only get as low as 12.5ish), bit better after re-wiring the fuel pump.

Now just not sure whether its all running ok. Need to compare with stock/1bar set-up.