Factory efi

Ed Wright · 04-07-2020, 08:37 PM

After dialing my air/fuel numbers back to the same, 60 psi & smaller injectors was a solid 5 hundredths quicker. The reason I was given by the most knowledgeable guy I have ever known, was it reduces misfires, and promotes more complete combustion. We never hear all the misfires taking place all the time.
Larger injectors require much shorter pulse widths, at idle, light loads, and decel. When you get much below one mili second pulse widths, it gets inconsistent. My knowledgeable friend works for GM, doing the original calibrations (“tunes”) on Corvettes. Absolutely knows more about this than anybody here.

04-07-2020, 08:37 PM	#19
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Factory efi After dialing my air/fuel numbers back to the same, 60 psi & smaller injectors was a solid 5 hundredths quicker. The reason I was given by the most knowledgeable guy I have ever known, was it reduces misfires, and promotes more complete combustion. We never hear all the misfires taking place all the time. Larger injectors require much shorter pulse widths, at idle, light loads, and decel. When you get much below one mili second pulse widths, it gets inconsistent. My knowledgeable friend works for GM, doing the original calibrations (“tunes”) on Corvettes. Absolutely knows more about this than anybody here. __________________ Ed Wright 4156 SS/JA