AEM 30-71XX Infinity Stand-Alone Programmable Engine Mangement System Full Manual - Manual (Page 87)

Tuning Guide 81
© 2014 AEM Performance Electronics
Tuning Guide
Background
What is “Tuning”? Tuning can mean anything from adjusting the idle mixture screw on a
carburetor to experimenting with custom length headers on an engine to setting up the flow ratio
between primary and secondary injectors in an EFI calibration. Tuning covers a wide range of
topics and not all are related to fuel injection. In its most basic form, EFI tuning involves
optimizing the fuel flow and spark advance variables to maximize performance and economy.
For the purpose of this manual, tuning refers to the act of making changes to a calibration file for
a programmable AEM Infinity ECU to optimize the performance of an engine.