Edit Motronic 3.1 for BMW M50B25 3.0
Posted: Sat Jul 03, 2010 9:20 am
Good day dear Sirs. I have built M50B25 engine with 3.0 volume. Compression ratio is about 11:1. I want to install Bosch 0280150440 208 light rose injectors (from M52B28) and I want to decrease ignition dwell angle. DME is Motronic 3.1. I have three question for you:
1. Is a anybody knows, how to recalculate the figures in ignition menu? I loaded XDF and BIN file for M3.1 403 block. But I have figures in table "Part Throttle Ignition(raw data)" about "30" for 680 RPM. It's too high for ignition dwell angle on this RPM. How to define real ignition dwell angle on the basis of figures in tables.
2. Second question about fuel map. What are displaying each of tables in FUEL menu. I understand what is WOT and what is fuel map. I need short description for each of them. What figures are displaying in each of the table. Is it volume of injection fuel per second or any other parameters? If I will understand that maybe I can recalculate fuel map for more performance injectors.
3. What means figures in injectors constant and rev limit menus. I have accordingly "54953" and "6965" figures.
BMW is perfect cars and in our hand they become better )))
1. Is a anybody knows, how to recalculate the figures in ignition menu? I loaded XDF and BIN file for M3.1 403 block. But I have figures in table "Part Throttle Ignition(raw data)" about "30" for 680 RPM. It's too high for ignition dwell angle on this RPM. How to define real ignition dwell angle on the basis of figures in tables.
2. Second question about fuel map. What are displaying each of tables in FUEL menu. I understand what is WOT and what is fuel map. I need short description for each of them. What figures are displaying in each of the table. Is it volume of injection fuel per second or any other parameters? If I will understand that maybe I can recalculate fuel map for more performance injectors.
3. What means figures in injectors constant and rev limit menus. I have accordingly "54953" and "6965" figures.
BMW is perfect cars and in our hand they become better )))