Sorted out a lot of the little problems my zed has yesterday and took it for a quick spin. The car hits around 4.6-4.7v on the AFM usually and after a quick 1st-2nd-3rd run it hit 5.115v. What i've noticed is that any kind of wheelspin will cause a kind of "spike" in the AFM signal, anyone else encountered this before?
Geez, fancy that...... Wheelspin = Higher rpm = greater ingestion of air by motor = higher voltage @AFM Congratulations, you effectively maxed out your afm...... the VQ table tops out at 5.12V
what mass flow does it take to hit that though? Can the standard compressors flow that much? Plus wheelspin is relatively lower load than the same rpm with grip so shouldn't there be lower turbine speed and hence less compressor flow? Maybe my theory is way off and it is normal but I've done my fair share of skids and don't think I've ever had an AFM reading over 5V although I haven't really gone looking for it, what boost is this at Nem?
Ah, misread it a little, still curious what mass gives 5.2V though, the map that I can find stops at about 4.25V flowing ~37lb/min and has a pretty shallow curve at that point. Extrapolating by eye looks like maybe 60lb/min so turbos must be pretty close to choking.
