Hey all. I know it's been discussed before but I can't figure out the function our steering angle sensor uses for determining steering rack ratio and was wondering if anyone has any ideas on this? I have ZCP settings for my ZHP rack currently which is perfect because they're the same ratio on an M3 but actually wanted to see about creating a custom profile in NCS Dummy to adjust for an even faster rack assuming this is possible. I don't see why you can't because you just need the formula for how the sensor takes the turns lock to lock of the rack when mounted to M3 knuckles. I'm more curious if the sensor calibration will max out before reaching said faster ratio.
Here is what I found in NCS Dummy. For reference, there is a SMALL window outside of the rack ratio that the sensor will allow for a faster rack without triggering DSC inadvertently for thinking you are turning the rack too violently. I actually have CSL MDM settings on my ZHP sedan and on a fast backroad with a lot of inputs the car works incredible with the CSL settings and that rack is a 13.7 since non-m knuckles allow a shorter tie rod length. I've considered custom knuckles on the M3 but if I want to go faster than an equivalent 13.7 ratio, the sensor will absolutely need a custom profile so it doesn't think the car is constantly understeering.
Here is what I found in NCS Dummy. For reference, there is a SMALL window outside of the rack ratio that the sensor will allow for a faster rack without triggering DSC inadvertently for thinking you are turning the rack too violently. I actually have CSL MDM settings on my ZHP sedan and on a fast backroad with a lot of inputs the car works incredible with the CSL settings and that rack is a 13.7 since non-m knuckles allow a shorter tie rod length. I've considered custom knuckles on the M3 but if I want to go faster than an equivalent 13.7 ratio, the sensor will absolutely need a custom profile so it doesn't think the car is constantly understeering.
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