I cannot believe the timing! I've been tuning my MS42 timing for a couple months now, among other things like launch control, rev-hang, etc., and I've been looking and thinking about how to tune fueling since then. A couple of weeks ago I found your channel, don't even know what I was looking for, but I just checked it and didn't get what I was looking for, and now just found this awesome video. It's exactly what I needed. I already have the data and many other things that I figured out on my own. Still, I was missing the part about how to make it a sort of learning table, which is what I've been using for timing tuning, and all I needed was just to know about the existence of histograms and how to make them! Thank you so much. Edit: I just posted in the RR topic because I am trying with another software. Maybe you can help me compare results if you don't mind. Would appreciate it hardly.
Im a bit perplexed. If the ECU is capable to adjusting fueling via STFT and LTFT to get the fueling right as per ECU( Lambda 1 or 14.7), what is the purpose of going and adjusting the values so that the ECU makes minimal corrections. To me it seems easier to just adjust timing, to advance where you can that makes a performance difference and even then the Fuel trims will adjust accordingly. Say advancing the timing will equal a leaner mixture which in turn will make the ECU enrich it enough so that its stoich?
The ecu will adjust within its set limits only. WOT fueling will also be affected by the LTFTs. Base fuel map tuning is required when doing major mods like cams / injectors to get the base fuel map somewhat stoich again. Fuel map tuning first and then ignition.
@@CSI_tuning_solutions I have still yet to understand the fueling logic of the MS41. At part throttle its base fuel map + STFT + LTFT? At WOT, its base fuel map + LTFT + WOT Enrichment?
I will be going through this much more carefully this fall when the car is running.
I cannot believe the timing! I've been tuning my MS42 timing for a couple months now, among other things like launch control, rev-hang, etc., and I've been looking and thinking about how to tune fueling since then. A couple of weeks ago I found your channel, don't even know what I was looking for, but I just checked it and didn't get what I was looking for, and now just found this awesome video. It's exactly what I needed. I already have the data and many other things that I figured out on my own. Still, I was missing the part about how to make it a sort of learning table, which is what I've been using for timing tuning, and all I needed was just to know about the existence of histograms and how to make them!
Thank you so much.
Edit: I just posted in the RR topic because I am trying with another software. Maybe you can help me compare results if you don't mind. Would appreciate it hardly.
@@aleknive thanks for watching. For further tuning help best to join the discord bmw tuning channel
www.ms4x.net/index.php?title=Main_Page
In MLV HD there's a custom field feature, I use it to get the averages of stft1 & 2 average and create a new field and use it in histogram
You could use the same option to log wb from rear o2, and make a regression line equation in excel and use it in custom field to show afr
Awesome tip! just tried it out. only used that custom fields for theoretical hp and tq calc. thus far
Im a bit perplexed. If the ECU is capable to adjusting fueling via STFT and LTFT to get the fueling right as per ECU( Lambda 1 or 14.7), what is the purpose of going and adjusting the values so that the ECU makes minimal corrections. To me it seems easier to just adjust timing, to advance where you can that makes a performance difference and even then the Fuel trims will adjust accordingly. Say advancing the timing will equal a leaner mixture which in turn will make the ECU enrich it enough so that its stoich?
The ecu will adjust within its set limits only. WOT fueling will also be affected by the LTFTs. Base fuel map tuning is required when doing major mods like cams / injectors to get the base fuel map somewhat stoich again. Fuel map tuning first and then ignition.
@@CSI_tuning_solutions I have still yet to understand the fueling logic of the MS41.
At part throttle its base fuel map + STFT + LTFT?
At WOT, its base fuel map + LTFT + WOT Enrichment?
Can you do m50 manifold and DISA deleted tune? Or show me how to off the disa
@@JustDoit-yc5ob thanks for watching. For further tuning help best to join the discord bmw tuning channel
www.ms4x.net/index.php?title=Main_Page