Self-Tuning Fuel Injection

[LostMy65]

Originally Posted by cleszkie

I run the MSD Atomic throttle body EFI. I have it controlling the fuel and timing with a locked out dizzy and 6al ignition box. Upon initial set-up, it basically gives you the choice of three base fuel maps depending on the cam profile (lift/duration/lobe separation) you are running - Street/Stock, Mild, and Performance. The system will then modify the base fuel map according to the system feedback. The sensors include TPS, O2, coolant temp, intake air temp, MAP, etc. In the advanced set-up menu, you have the ability to manually adjust the accelerator pump shot, and power valve enrich settings to get things where you want them. I found that the system was limited in its ability to totally manage my engine until I let it control the timing as well (and install a return style fuel system with in-tank pump, but that is another story). Now it can much better optimize the timing/fuel requirements.

In a nutshell, it is a self learning system, but there is a lot of tweaking and adjustments that must be made to fully realize the potential of the system. The MSD Atomic comes with a plug in hand held display that allow the user to make the adjustment on the fly without having to use a laptop.

What model msd distributor are you using?