MembersPage/IgnjatRNN
Yugo C20LET

YugoLET.jpg

My first page here will be actually my last project. It's a small car made in Serbia with well known c20let engine from Opel Calibra turbo. Goal was to make a car run as it should with Vems in less than ten days (tenth day was drag race in Osijek, CRO). All wirings were made according to Phat Bob guide, like all others car I installed Vems before, luckily without any problems. Harness was made of 0.75mm2 automotive grade wire, with exception of ground wire 6mm2.

MAP and MAT sensor used for this install was Bosch 0 281 002 401, same from webshop, with difference in range of it. In webshop you can find it's 300kPa sensor, while actually its 330kPa sensor.


  • Primary Trigger

Secondary trigger was taken from Astra F GSI which uses DIS module.


Ignition subsystem was wasted spark DIS module droven with two IGBTs.

Injection was fully sequential, made also according to PhatBob? guide, with Siemens DEKA 630cc injectors used, and with 30v flyback diode installed.

Firmware used in this case was 1.0.78 because of possibility of using ignition retarding when using NOS, with only input configured.


Two more inputs were used for launch control and flat shift (aka shift cut), configured to cut only spark while shifting gear, with 250mS used as longest period of cutting. Be careful when playing with launch control, you could destroy your exhaust system, dramatically shorten turbos life and make very high EGT



VW Corrado VR6 Turbo
  • Triggering

Used OEM 60-2 crankwheel and sec trigger, but couldn't use it on falling edge, so used rising for HAL sensor on cam. 13th tooth is TDC on 1st cylinder.

  • Ignition subsystem

OEM coilpack used, with removed amplifier.

  • Fueling

440cc/min Bosch "Greentop" injectors used, with 30V flyback, fully sequential setup.

  • Engine sensors


Fiat Coupe 20VT

  • Wiring

Wiring for VEMS is temporary made of OEM engine management installation (will make new once).

  • Making of new wiring harness in progress. It's a bit harder job than I had it in my mind. FIAT wanted to put a bit more wire than Coupe needed, so now I'm trying to make some sense of those spaghetti :) Some strange misfire begun in last few days, first about 250 kPa, than 240, another day 230, 220, 200...
  • New harness is finished today. Misfire was probably caused by broken COPs. I changed them with VAG active COPs

  • Ignition subsystem

Fully sequential COP, OEM COPs used

  • Now VAG active COPs used. Removed IGBTs, no need for them any more.
  • Even with "old type" of VAG COPs i had very weak spark, so I needed to lower resistance between VEMS and COPs. Now it's very strong spark, and no problems in boost anymore.

  • Trigger
  • VR Sensor
  • 60-2 Crankwheel
  • HAL secondary trigger

  • Fueling
  • Siemens DEKA 630cc/min
  • Walbro 255
  • OEM FPR

Opel Astra F C20LET

astra.JPG


  • Triggering
  • OEM 60-2 crank trigger wheel with VR sensor for primary
  • Astra F C20XE sec trigger used, no distributor

  • Ignition
  • VAG active cops used, fully sequential setup

  • Fueling
  • Siemens Deka 630cc/min injectors, 3 bar fuel pressure

  • Engine sensors
  • Bosch MAP&MAT sensor
  • OEM CLT sensor
  • OEM VR crank sensor
  • Astra F c20XE Secondary trigger (hall sensor)
  • WBO2
  • EGT
  • OEM TPS


Fiat Coupe 16VT

Can you tell serialnr of this VEMS ? So we can get some idea of its history. Btw, nice progress. Mention your URL for any WebShop order / discount negotiation.

Yes, I'm holding it right now in my hands. It's 2322. v3#2322 was sold as a board (so home-assembled).

  • Trigger
  • VR Sensor
  • 60-2 Crankwheel
  • no secondary trigger at the moment, need to make something. I'll probably try to make it with hal sensor from webshop
  • Fueling
  • Need to make sec trigger for sequential injection
  • Simens DEKA 630cc/min
  • OEM FPR and Fuel Pump
  • Ignition
  • OEM wasted spark coils droven with two IGBTs

Escort RS Cosworth

Cosworth1.jpg

  • We work with these engines mostly, so I am interested in your experiences, problems, sollutions. - MembersPage/ZoltanAlmasi


Kadett D MV6


Fiat Punto 1.4GT gt2871r


Yugo 55


Kadett C C20XE

My first Alpha-N setup. K4 1000 ITBs mounted on custom made intake manifold. It seems Alpha-N is much easier to setup than I read on forum. Very smooth running, fantastic throttle response and pretty low fuel consumption. I used 1.1.84 firmware, and everything went very smooth, without any problems.

  • Primary Trigger
  • '''Secondary trigger

  • Ignition
  • Fueling
  • Intake


Suzuki Swift GTI


Alfa Romeo 75 3.0 America
Daewoo Leganza C20XE

My car. I bought it with broken engine and made XE with stock block (changed crankshaft, rods, pistons, head, intake, exhaust, everything except engine block).

  • Primary Trigger
  • '''Secondary trigger
  • Engine sensors
  • Stock Denso MAP sensor
  • OEM CLT sensor
  • OEM VR crank sensor
  • Custom made sec trigger
  • WBO2
  • Webshop IAT
  • C20LET TPS
  • Ignition
  • Fiat Punto 2 coil wasted spark
  • Fueling
  • OEM Daewoo 3 bar FPR
  • OEM fuel pump
  • C20XE injectors
  • Wiring
  • Like all other vehicles I installed VEMS, here I made harness with stong gnd and left stock fuses for power supply. Idle actuator used is stock c20xe with 1n4007 used. Wired input switches for launch control (small switch changes function of siren to lc), shift cut (switch to enable it, and microswitch on clutch pedal) and dual config switch I plain to use for petrol/LPG maps.
  • Outputs
  • P259 used for fuel pump, tacho, fan 1st and 2nd speed, MIL and A/C
  • 2 IGBTs for ignition
  • 4 injector drivers, one FET for idle
Subaru Impreza STI BugEye? PNP

Group N rally car, so all engine internals are stock. I made PNP Vems for it, using original ECU connectors, VEMS aluminium box with modified front plate to accept connector.

  • Primary Trigger
  • Secondary trigger
  • Engine sensors
  • OEM Denso MAP sensor
  • OEM CLT sensor
  • OEM VR crank sensor
  • OEM VR cam trigger
  • WBO2
  • OEM IAT
  • OEM TPS
  • Ignition
  • OEM COPs sequentialy fired
  • Fueling
  • FPR@3bar
  • OEM fuel pump
  • OEM pink injectors 565cc/min
  • Wiring
  • Wiring harness left stock (it couldn't be changed), because engine should start if OEM ecu plugged in. Added external connectors for WBO2, inputs for Launch Control, dual maps and flat shift.
  • Outputs
  • P259 used for tacho, fan 1st and 2nd speed, MIL and shift light
  • Stepper chip for ignition
  • 4 injector drivers, one FET for idle, one FET for boost control