datalog rtek 2.1 3rd gear
 

finally been messing around with the data logging a bit. did a 3rd gear pull
airflow seems to peak right around 900 then I noticed I was going leaner as rpm increased past that point, I added some fuel in the high rpm areas, and these were the results.

does this mean the AFM is maxing out?


Attachment 682076

mods
rtek 2.1 walbro 255 720x1200 injectors, using arghx mild timing map.
street ported s4 block 8.5 rotors
greddy cast manifold and WG, straight dump
IHI rhc7 turbo, hks intercooler core, custom piping
"custom" 3" exhaust, though there is a 2.5" section in the center I need to get rid of...

have yet to get it on a dyno anywhere.

Yes, the AFM maxes out at about ~900 for me as well. A little additional fuel in the high-RPM range is a simple solution.

so far it looks pretty good to me

Do the S5 AFM's max any higher than the S4 units?

I don't think so. But the Cosmo 13b and 20b AFMs will measure a little to a lot more:

https://www.rx7club.com/2nd-generati...mo-afm-961741/

well shit somehow after reloading the map a couple months ago when I was having issues, it has switched back into load based timing! rechecked the option and it appears the map I had entered is still correct. desided to go in and remove a bit of high boost timing just incase of overboosting.

hmm figured I better check the whole split map too. most of it seemed ok for some reason I had less split at high boost.. might of had a reason for this but I cant remember. so I just added some back in