INFINITY SERIES 7 PROGRAMMABLE EFI OVERVIEW
The Infinity ECU delivers state-of-the-art programmable EFI control capabilities typically found only at upper echelons of Motorsports. Through the Infinity ECU, AEM makes this technology affordable for both professional race teams and amateur racers.
200MHz Processor and Real-Time Operating System
Late model vehicle ECU’s all run on faster processors. The Infinity ECU is built around a latest-generation 32-bit floating point 200MHz automotive processor and Real-Time Operating System (RTOS), which is capable of processing 400 MIPS (millions of instructions per second). By comparison, common competitive systems typically use 20MHz to 50MHz processors. To our knowledge, the Infinity ECU currently has the fastest processing speed of any aftermarket Motorsports ECU available. This allows the Infinity to do more, faster, in a more stable programming environment.
All Infinity ECU’s come fully enabled, without the need for feature add-on purchases. Combined with AEM’s industry-leading after-purchase support system, including free technical support, the Infinity is the ultimate engine control solution for both professional race teams and weekend track cars.
SELECTING THE RIGHT INFINITY ECU
Infinity ECU modules are designed for maximum flexibility across many types of applications. ECU modules and harnesses are sold separately for both Supported and Plug & Play applications. Choose the ideal Infinity ECU based on your application’s ignition and fuel injector output requirements using the Infinity Specifications Chart, and then choose between our available Plug & Play or Universal harnesses to create the Infinity solution that suits your specific needs.
SUPPORTED vs. PLUG & PLAY APPLICATIONS
The Infinity ECU delivers comparable tuning functionality regardless of application type. It is available for a wide variety of applications in two distinct forms:
Plug & Play Applications
Infinity Plug & Play applications are available for select vehicles. Plug & Play applications support a vehicle’s engine and most other ancillary vehicle systems and include application-specific startup calibrations. The Infinity Plug & Play harness (sold separately) connects directly into the vehicle’s factory ECU harness and requires no additional wiring.
AIRFLOW MODEL BASED CALCULATIONS
Infinity’s airflow model-based systems greatly reduce the amount of time it takes to set up and tune an engine by eliminating many of the lookup and trim tables (correction tables) necessary in previous generation ECUs. The Infinity’s airflow based, or volumetric efficiency (VE) based models calculate an engine’s requirements in real time based on an advanced algorithm that has various modes for calculating air flow. Once the user inputs an engine’s basic parameters (displacement, cylinders, ignition type, and firing order) and methods of calculation for airflow and ignition they can begin setting the engine’s VE table in the software.
InfinityTuner USER INTERFACE SOFTWARE
InfinityTuner is optimized for speed and performance. The software has the power to control a multitude of features found in today’s modern racecars and features an advanced tuning Wizard to reduce set up time. An ECU Setup Wizard takes complex calibration setup work and simplifies it through a smart interface that features tabs for quick set up of vital engine functions. Each tab includes a description of the function.
InfinityTuner software is highly flexible. It allows you to choose from multiple strategies for boost control, idle control, wheel speed-based traction control, charge air temp blend, launch control and more.
All controls in the Infinity ECU are synched to logged data which allows users to edit calibration data during log playback to minimize tuning time. AEMdata, AEM’s advanced data logging analysis software is also included for reviewing data logs.
ULTRA-HIGH RESOLUTION FUEL CONTROL
The Infinity ECU calculates injector pulsewidth in units of 1/10th of a microsecond (0.0000001 second). Individual cylinder fuel trim is included and user adjustable.
ACCURATE IGNITION TIMING UNDER ANY CONDITION
InfinityTuner software features a 3D ignition trim map (coolant and air temp based), and its back-end timing code is tested to 100,000 RPM. Individual cylinder ignition trim is included.
FLEX FUEL COMPENSATION
Flex fuel compatibility is included, and the Infinity is able to make automatic adjustments for ethanol content in the fuel with the addition of an ethanol content sensor (sold separately).
The Infinity has the ability to run two separate fuel types simultaneously through staged fuel injection
DRIVE BY WIRE CAPABILITY
The Infinity Series 7 ECU can control two drive by wire throttle bodies and includes auto calibration for DBW sensors. It includes idle control, an optional drive by wire rev limiter (for use as a launch limiter, holding limiter or in conjunction with other rev limiters) and necessary failsafes based on redundant sensor inputs.
The Infinity ECU uses a coolant temp based idle control model. It includes an RPM vs. Engine Speed Rate idle decel feature that provides accurate control of the IAC and allows for adjustment of engine braking. The Infinity’s idle TPS offset provides smoother low idle operation when necessary, like driving in the pits or return lane following a pass.
MULTIPLE BOOST CONTROL STRATEGIES
Choose from time, gear, vehicle speed, switch-based or other boost control strategies. The Infinity’s boost control includes two 2D base duty tables and two 2D boost target tables. The second tables can be used as a trim, and users can choose from multiple strategies including IAT, MAP, Baro (kpa), throttle %, flex fuel content, boost target and more. Please visit our Forum for an in-depth review of the Infinity’s boost control capabilities.
The Infinity’s software allows you to run a single-stage wet or dry nitrous set up (four-stage available soon). This feature includes nitrous timing delay to account for nitrous bleed out and can be set up for water/methanol injection tuning. Four stage nitrous will be upgraded for free for existing Infinity users when it becomes available.
VARIABLE VALVE CAM CONTROL
Set base duty, limit and VVC cam target for up to four cams through the InfinityTuner Wizard. Users are able to achieve a VVC cam target by setting Cam 1 base timing and base duty cycle % in a 2D table, and the software features a 1D base duty % table that controls the base duty cycle for the VVC output, which is tunable based on the VVC target.
The Infinity includes up to four separate ignition maps, four separate Lambda maps and two separate VE maps with independent values. Using AEM’s 12 Position Trim Pot, this powerful feature delivers many valuable tuning options including:
Multiple engine protection strategies are incorporated into the Infinity ECU. Available strategies include:
REAL-TIME ADVANCED DIAGNOSTICS
The Infinity’s diagnostics software can be configured to constantly monitor signal and current quality to alert the user of a potential issue before it creates the potential for engine damage.
INTERNAL WIDEBAND CONTROLLER
Dual Bosch wideband controllers are built into Infinity Series 7 ECUs. This provides highly accurate closed-loop AFR targeting and enables the sensor diagnostics in the ECU to determine the operational condition of the sensor.
LIGHTNING-FAST DATA LOGGING
Infinity’s logging feature supports 2 different file systems. A custom file system option will support 100 channels at up to 1 KHz using a high-performance USB flash drive (sold separately). A standard FAT file system will support 10 channels at up to 1KHz, 20 channels at up to 500Hz or 100 channels at up to 200Hz. The Infinity includes a 4GB USB memory stick and the user can replace this with up to 64GB. Additionally, the user can also log directly to the PC at up to 500Hz when connected.
AEMdata DATA ANALYSIS SOFTWARE
AEMdataprovides an advanced interface for viewing the log files generated by the Infinity ECU.
DUAL KNOCK SENSING
Dual knock signal conditioning circuits allow for precise measurements of knock levels. The Infinity can utilize both Piezoelectric and Flat Response type knock sensors.
The Infinity ECU is constructed using automotive-rated components designed to withstand the harshest racing environments. Its enclosure and connectors are sealed to make it suitable for engine bay mounting. An advanced wear-leveling strategy for flash memory ensures a lifetime of reliable performance.
The Infinity ECU is able to transfer data via USB at up to 480 Mb/second. It features a fully-sealed IP67 communications connection system.
Infinity is AEMnet enabled and will communicate with another AEMnet-equipped device. It is able to output to 3rd party dash/logger devices (not all 3rd party dash/logger devices may be supported). Call AEM technical support at (310) 484-2322 for more information.
INFINITY ECU ADVANCED TUNING PACKAGE
Certain Advanced Tuning functions, hardware outputs, and sensor inputs are available for the Infinity Programmable ECU. The Infinity ECU's Advanced Tuning Package is available at no charge for a limited time. Please contact an Authorized AEM dealer or call AEM Performance Electronics at (310) 484-2322 for more info.
INFINITY SERIES 7 EMS CAPABILITIES:
Each Infinity ECU includes ignition coil outputs and injector drivers equivalent to its name. The Infinity’s airflow-based tuning models simplify startup and speed up the tuning process by eliminating many of the lookup and trim tables (Correction Tables) necessary in previous generation ECUs. For a limited time, all Infinity systems come fully enabled without the need for feature add-on purchases. Combined with AEM’s industry-leading after-purchase support system, including free technical support, the Infinity is the ultimate engine control solution for both professional race teams and weekend track cars.
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