It seems that every time I read a thread about injection timing on here it changes. Old 2012 DSteck way was to leave the boundary and rpm stock and change the ECT to get the SOIT past the EVC. Not much info on the higher rpm tuning.
Now I read more about zero out RPM and set ECT for idle richness and throttle snap. I see a lot of boundary changes in every direction. Small to large ramp up in rpm, and large to small ramp down with rpm. Stock tunes look like the SOIT is sooner as the rpm increases. If you zero the normal rpm table, and change the ECT table to a lower value from 110 to 90 or so, the SOIT pushes past the EVC target up around 1,152 rpm. All according to the EOIT spread sheet. If boundary is not changed, the EOIT is around PPV. If you change boundary in the higher rpm, what is the target supposed to be? I also read that the old targets in the spread sheet past 4000 rpm are not valid now due to new things learned from testing. GHuggins has said he rarely pushes the boundary out past 575 to 610. If I target the old 20-30* before IVC I would be in the 635 boundary area.
I am confused on which way to go. Old way, 2018 way, or whatever the correct way is now.
Car Specs: 2010 Camaro E38 ecm
408 iron, 10.4:1 CR
242/258 116 LSA 113 ICL .629/.612 lift @ .006- 297/313 Cam motion
ID1300X injectors
ESS G4-95mm Centri blower Max effort 20+ psi
Excel snapshot
408.G4.87.Startup.E85.LTFT.8.3.hptScreenshot 2024-04-09 094816.png