MembersPage/FredrikEriksson (2005-09-28 07:44:12)

I contacted Mattias about setting up VEMS on my BMW 535 (E28) on which I has a twin turbo setup. More information here (in Swedish): http://www.535twinturbo.com/

I previously ran with SMT6 but that was just crap.

Engine information

Trigger setup

The stock reference and speed sensor are not useable with VEMS as far as I know, these are mounted at the back of the engine. One measure engine speed through 360 teeth, the other syncs with the engine once every revolution. So it's kind of like a missing tooth setup - only it isn't.

The solution that will be used: Three M8 bolts will be fastened to the harmonic dampener at the front of the engine, 120 degrees apart with 8 mm protrusion. A Honeywell GT1 Hall sensor will be used to sense these.

What ign_tdcdelay (position of the pulses BTDC) will you use ? 55..65 crankdegrees ?

I get the zero mark line up with the mark on the engine on 45degrees

Assembled v3.3 controller wishes


050926 - Problems of the day

SOLVED - Switched Polarity

SOLVED - fuse didnt have 100% contact whit the cabels

my config is at http://junk.535twinturbo.com/terminal_senaste.log

050928

  • Does it often hapens that configs chenges when voltage drops verrymuch? like yesterday by batterycharger whent crasy and overheated or something sÃ¥ megatune lock´d the voltage gauge to 6volt, can this damage the configs or something? I ask this beacuse the engine has works and run perfectly (except some EGT heat problems ond so on) but then something has happend, and if secondary trigger has changed i promise you i didnt touch it