RomRaider

Hey Everyone, new user who was turned on to MS41.3 by a friend who has used it in a Turbo, S52 E30 and an M52 Stroker E36.

Quick Summary of my application and how I got here. I have a caged E36 325i with an S50B30 swap that is 95% used for wheel to wheel racing. After my last race my Bosch 413 had fried again (water ingress into the DME compartment), and was convinced OBDII swap was the way to go. The car is now running well and I am just playing with the timing in the search for more power.

I followed the steps on the MS41.x Wiki and downloaded MS41.3, for an S52B32, from the associated link. During our tuning escapades we found the Ignition Table - Vanos Correction was very strange for the S52 MS41.3. See attached images showing the Vanos Table from MS41.2 and MS41.3, respectively.

We have since transferred the MS41.2 Vanos Correction table to the MS41.3 tune.
The primary purpose of this post is to warn those who are downloading the S52-MS41.3 of this oddity, and my parting question is: has anyone else encountered this?

It's best to open and compare each and every parameter. When receiving Ms41.3 it doesn't come tuned for you're application. You will need to copy and paste from previous version to current version and then tune as needed. (eg. Ms41.2 all or most maps to Ms.41.3)