Tony Ouneissy Posted August 29, 2011 Report Share Posted August 29, 2011 I installed a G4 Storm ECU on BMW E30 Turbo Engine, i usually install the ECU as Batch injection and ( wasted spark ) ignition ( inj1= cyl1 and cyl6, inj2=cyl2 and cyl5, inj3=cyl3 and cyl4 ) and same goes to ignition, no need to use 2nd trigger, its my first time on Link . on this specific Engine i kept the distributor ( so no need to worry about ignition ) my only concern is fueling, how to do the setup ? 2nd question : i tried to use sequential with trigger1 connected to trigger2 ( crank only ) and 2 outputs ( inj1=cyl1 + cyl3 + cyl5, inj2= cyl2 + cyl4 + cyl6 ) NB: original BMW E30 ECU runs like this. i got better idle and better overall fueling, is this method safe to use ? or should i use same method with injectors in 3 groups like my old setup ? Quote Link to comment Share on other sites More sharing options...
Jurgen Biggelaar Posted September 9, 2011 Report Share Posted September 9, 2011 Hi Tony. As the Storm operates injector drives in 'odds & then evens' with batch fire, you are better to leave them as 2 groups of 3 as you suggest. The main reason for doing this would be consistant fuel delivery. If you do 3 groups of 2, essentially you are firing 4 injectors (odds), and then 2 (evens). The resulting fuel pressure drop when injectors are operating will not be the same firing 4 as it would firing 2 injectors. By having 3 off odds, and 3 off even drives, you will have consistant fuel pressure and delivery. Jurgen. Quote Link to comment Share on other sites More sharing options...
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