RPM limit for BMW E30 325e M1.1 2.7L hw018?

taiajam · Post by **taiajam** » Mon Apr 01, 2013 3:35 am

Can some 1 help me find the revlimiter for this file?

Is it locaded right in front of the main spark maps?
which is:
#16E6 DEC=86
#12C5 DEC=86
located in front of the WOT sparkmap
#1367 DEC =96

Original Rpm limiter seems to be just past 6100 rpm.
I can remember that for the VR6 ECU's I did DEC * 70 to get the RPM limiter..

I can upload the original file, but you can alsofind it in the download section.

tunesss · Post by **tunesss** » Mon Apr 01, 2013 4:57 pm

taiajam · Post by **taiajam** » Tue Apr 02, 2013 12:37 am

Rev limit is just past 6100. It could be 6250. In the past it could rev to 7000 with another chip. But that chip was sold by the previous owner.
Indeed I've read about the 5000limit. But I think its another engine. Multiplier should be 40.

tunesss · Post by **tunesss** » Wed Apr 03, 2013 9:22 am

taiajam · Post by **taiajam** » Thu Apr 04, 2013 6:17 am

I can share you my original file. Ecu code ends with 081. 2732 EPROM.

2.7 litre engine . But called 325e

tunesss · Post by **tunesss** » Thu Apr 04, 2013 7:29 am

taiajam · Post by **taiajam** » Thu Apr 04, 2013 7:51 am

http://www.tunerpro.net/download/bins/B ... 30_081.bin

i downloaded this file, and modded that one for the ecu. the ecu has the same code. so i did some work before i got the ecu.

it worked in the ecu, also with modded ign maps etc..

taiajam · Post by **taiajam** » Tue May 07, 2013 8:03 am

I think i found something. guessing the foprmula for the rev limit is
DEC * 40.

adress #1372 contains DEC 172, HEX AC.
its 3adressed afther the WOT ign map.

172 * 40 = 6880.

I could be totally wrong on this one...

what is the usual posistion of the revlimiter and usual formula on the older motronic ecus?