Quote:
Originally Posted by NotEric6
Thank you for asking this as I was unaware as well. Could someone point us in a direction of the map that shows different fuel trims per cylinder? Or a thread discussing this? I was unaware oems were doing this.
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I'm not aware of any threads talking about it but most oem ecu's on a performance car i've ever measured in this way runs different cylinder maps or at least offset tables for each cylinder for both ignition and fuel. This is why aftermarket ecu's with a single table for fuel and also for ignition often run pretty badly at idle and transient compared to oem.
I'm running a Motec ecu on my GT86 with 4 lambda's (one per header) and its very clear just how bad the intake and exhaust paths are and the amount of difference required. Its not a constant offset either, amounts cross over. If you measure each intake runner and exhaust runner length they all have a different total overall tuned length so it's not surprising at all.
When will pricing and completion date be confirmed on this?