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      09-26-2022, 04:11 PM   #7
PRTSB1M
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Drives: AW3 1M
Join Date: Feb 2015
Location: Thunderdome

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Quote:
Originally Posted by ShocknAwe View Post
Phenomenal. May switch to these when I do my rear end.
I also looked into the coding aspect of getting the speedometer and odometer to read correctly from smaller diameter wheels/tires and also went with this setup because rolling diameter is almost the exact same as non-M3 E9x 18" spec.

To code the speed/odo correction, it is in the KOMBI module.

I changed these stock parameters:
Quote:
C08_K_ZAHL_TACHO
wert_03
C08_K_ZAHL_TACHO_KOMPL
wert_03
C08_K_ZAHL_WEG
wert_03
C08_K_ZAHL_WEG_KOMPL
wert_03
To what NCSDummy shows for E9x non-M3:
Quote:
C08_K_ZAHL_TACHO
wert_02
C08_K_ZAHL_TACHO_KOMPL
wert_02
C08_K_ZAHL_WEG
wert_02
C08_K_ZAHL_WEG_KOMPL
wert_02
I had originally used the Z4 (E89) settings of wert_07/wert_05 respectively until I noticed that Z4 uses different rear-wheel sensor; however, this part is the same for all E82/E92/E90 models.

I have tested using the digital, non-corrected, speedometer versus 3 "Your Speed IS" signs in my neighborhood to confirm and seems to be dead-on.
I also did a distance test of the odometer/trip-meter vs google maps distance, which also appears dead-on.

Last edited by PRTSB1M; 10-07-2022 at 02:38 PM..
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