MembersPage/PeteKrgr (2007-11-17 16:21:36)

Building a Porsche 3,0l 944 turbo

Now the details that affect VEMS specs and installation.


Trigger

Porsche 944 turbo trigger:

I.e. trigger is 132+1

Here's a screenshot of my triggerlog made into a graph, nice and steady signal. So VEMS can be installed to a 132+2 system with 2 VR sensors and without cam home hall sensor.

trig132-1.png


Shopping list

Assembled v3.3 controller


Specifications:

Board_version=v3.3

Serial_nr= 748

pump-= 4.16V

wbo2_pump_pw_zero=0x67

wbo2_nernstdc_target=0x86

pump+= -3.3mV/200 Ohm

AREF=4.9V

(C103=1nF, no D100)

Firmware 1.1.24

http://www.vems.hu/download/v3/firmware/

Part of config, I'm running this trigger with div_by_2 with these settings:

primary_trigger=C3

secondary_trigger=19

tooth_wheel=42

trigger_tooth=01

another_trigger_tooth=21

crank_minper=33

tooth_wheel_twidth1=20

tooth_wheel_twidth2=00

cam_sync_r_edge_phase=00

cam_sync_f_edge_phase=00

reset_engphase_after=40

ign_tdcdelay=7F

ign_dwell14=27

ign_dwell6=CC

ign_crank_advance=20

ign_out=70

ignchmax=03


Auditrigger was initially according to PhatBob's instructions:

EC36#27 VR+ ( primary ) = CRANK speed sensor

EC36#13 VR+ ( secondary ) = reference sensor (whel HALL!)

EC36#26 VR- ( primary & secondary )

but changed to

EC36#27 VR+ ( primary ), = CRANK speed sensor

EC18#12 VR- ( secondary ), = VR reference sensor

EC36#26 VR- ( primary )

EC36#26 VR+ ( secondary )

after discussions with Miska. So installation instructions should be updated considering this part.


Configuration:

MembersPage/PeteKrgr/Config

Tables:

MembersPage/PeteKrgr/Tables

Pictures:

MembersPage/PeteKrgr/Pics

History:

MembersPage/PeteKrgr/Oldstuff


Update 16-11-2007

Finally I've managed to get the car idling well, there's been both mechanical and program related problems. Now triggering issues are solved and VEMS is defitely suitable also for this kind of installation.

I would like to thak all those who have helped me with my project!!

Next update will arrive as soon as there's something to update...