High BAT/IAT/ECT enrichment

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mituc
VersaTuner guru
Posts: 1324
Joined: December 17th, 2011, 2:47 pm
Location: Iasi/Romania

High BAT/IAT/ECT enrichment

Post by mituc »

Is there any table(s) exposed that control the fuel enrichment based on any of the IAT, BAT, ECT or even ambient temperature?
I am targeting specific AFR values which work excellent in normal weather, but with these heat waves hitting all over the planet I noticed that the desired AFRs are about 0.3/0.7 AFR lower (so richer mixture targeted) without having any KR or any weird thing happening (DSC/TC, whatever).

Having the whole setup kind on the limit I didn't want to ride the 100% IDC line for no reason and I did my tuning so that IDC will maybe reach or exceed 100% only if ignition retard values are >0. But now it's hitting 100% sooner because of the 2-5% richer AFRs.
2008 Cosmic Blue Mazda 3MPS
Built engine + WMI + GTX3071 gen2, ~509BHP @34PSI
2008 Icy Blue Mazda CX7
Stock engine and exhaust (YES!!), JBR3" + GTX2867 gen2 + Autotech HPFP, self-tuned to 330-ish BHP
mituc
VersaTuner guru
Posts: 1324
Joined: December 17th, 2011, 2:47 pm
Location: Iasi/Romania

Re: High BAT/IAT/ECT enrichment

Post by mituc »

Ok, not ECT because even in this weather the ECTs on my car are under 90C.
BATs are a bit higher, 40-50C even though I'm using WMI, cooling down for 34PSI of boost is not easy.
So it remains IATs, maybe BATs, and some other weird temps such as estimated EGTs (as there's no actual temp sensor for this).
2008 Cosmic Blue Mazda 3MPS
Built engine + WMI + GTX3071 gen2, ~509BHP @34PSI
2008 Icy Blue Mazda CX7
Stock engine and exhaust (YES!!), JBR3" + GTX2867 gen2 + Autotech HPFP, self-tuned to 330-ish BHP
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