Project: VEMS controlled ignition and injection on Subaru Libero with 3 throttle bodies and injectors from motorcycle (Suzuki)
Engine inline 3 cylinder 1189ccm (used in Libero or Justy)
engine code: EF12
firing order: 1-3-2
firing step: every 120° of crank (of course)
firing step between 2 cylinders: 240° of crank
Actuators:
IGN.coils: 3pcs of automotive ign. coils (Marelli)
INJECTORS: 3pcs of 130 Ohm motorcycle injectors
Idle valve: maybe pwm, bi-metal or none
Sensors:
Trigger1: 60-2 (VR type)
Trigger2: i do not want to use trigger2
TPS: classic
CLT: classic NTC
MAT: classic NTC
WBO2: LSU 4.2 or 4.9
My question is:
1. Could i drive IGN and INJ with just Trigger1? My opinion is, that it will work "like wasted spark", on crank will be 3 ign. points, every 120°, it means 6 ign. points every 2 revolutions of crank. So on some cylinders spark will come in 2/3 of their stroke cycle. I am not sure if there is no problem with that "wasted spark" event when cylinder aspirate air with fuel. Piston will be in 2/3 of its way down, but i am afraid about the burning of fuel mixture at this point. What do you think???
2. Is it OK to use 130 Ohm injectors on VEMS??? Which type of injector driver choose when ordering?
3. The OEM distributor have 4 teeth and VR sensor. 3 teeth are at 120° and one tooth is approx 10° before the another one (for first cylinder). Is there any options to drive VEMS by this trigger from distributor?
Thanks for answers.