Post by
poshatch »
https://forums.nicoclub.com/poshatch-u145419.html
Sat Apr 09, 2011 4:24 pm
91 ka24de-t, t3t4, tiny fmic, 2.5" turbo back, 38mm external wg, dump tube, 370cc inj, n60 maf, safc2, aem wideband, 255 lph fuel pump, autolite plugs, stock everything else, 7psi
so im looking to get some decent power but nothing too much out of this set up
but id like input from those running an safc2
so basically i have the safc2 to read 2in 5 out from the n60 maf to compensate, and i have a super rich tune atm with no NE points set, throttle points are 10% 50%
when you tune with the safc2 to compensate for the maf and for the inj change, does it read the maf voltage, then compensate for it with the maf settings, then compensate again by you taking out or adding in fuel, and outputing a maf voltage that the ecu is going to red and produce the correct duty cycle for those inj that you want for that rpm point?
the only place i see the ecu being fed information is the maf sensor so i have to assume this is how it works??...what does this do to the STFT and the LTFT? the ecu is being fed information that it uses and outputs what you desire but not what the engine is actually getting, if you tune the safc2 to run for lets say a flat rich afr then dosnt the o2 sensor read a rich condition, richer than it would like on the closed loop and therefore want to adjust the STFT to a leaner condition?
this would affect the overall tune that you are trying to get wouldnt it?
im trying to get some good information about the safc2 and tuning it so i can tune it to be as precise and reliable as possible, all input is helfpul!