Infinity PNP 01-05 Honda/Acura K-Series Engines

Product

Overview

The Infinity ECU for manual transmission equipped 2001-05 Honda/Acura K-Series racing engines (Infinity 506 PN 30-7106 and Infinity 508 PN 30-7108) includes an engine-specific start-up calibration and connects to the engine via a Plug & Play harness that is sold separately (PN 30-3502). Begin by determining which Infinity ECU will best support the ancillary components in your manual transmission-equipped Honda K-Series engine using the Infinity Specifications Chart in the "Specs" tab.

Complete Stand Alone Engine Control
The Infinity ECU combines with the Plug & Play harness to replace the factory ECU. It controls all of the engine functions and the Plug & Play wiring harness adapter eliminates the need for cutting and splicing wires.

Plug & Play Harness with Expansion Port
AEM’s sealed, weatherproof Plug & Play harness (sold separately) includes a Lambda connector, an AEMnet connector for communication with other AEMnet enabled devices and an auxiliary connector with a High Performance DTM-Style 12P connector for adding common aftermarket sensors. Visit the "Features" tab for more information about the Honda K-Series Plug & Play harness expansion port.

STOP! THIS PRODUCT HAS LEGAL RESTRICTIONS. READ THIS BEFORE INSTALLING/USING!

WARNING!

THIS IS A RACE ONLY PRODUCT MANUFACTURED AND SOLD FOR INSTALLATION ON VEHICLES DESIGNED TO BE USED SOLELY FOR COMPETITION PURPOSES. ONCE THIS PART IS INSTALLED, THE VEHICLE MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, ON A PUBLIC ROAD OR HIGHWAY. IF YOU INSTALL THIS PART ON YOUR VEHICLE AND USE THE VEHICLE ON A PUBLIC ROAD OR HIGHWAY, YOU WILL VIOLATE THE CLEAN AIR ACT AND MAY BE SUBJECT TO PERSONAL CIVIL OR CRIMINAL LIABILITY, INCLUDING FINES OF UP TO $4,819 PER DAY.

IT IS THE RESPONSIBILITY OF THE INSTALLER AND/OR USER OF THIS PRODUCT TO ENSURE THAT IT IS USED IN COMPLIANCE WITH ALL APPLICABLE LAWS AND REGULATIONS. IF THIS PRODUCT WAS PURCHASED IN ERROR, DO NOT INSTALL AND/OR USE IT. THE PURCHASER MUST ARRANGE TO RETURN THE PRODUCT FOR A FULL REFUND.

THIS POLICY ONLY APPLIES TO INSTALLERS AND/OR USERS WHO ARE LOCATED IN THE UNITED STATES; HOWEVER, CUSTOMERS WHO RESIDE IN OTHER COUNTRIES SHOULD ACT IN ACCORDANCE WITH THEIR LOCAL LAWS AND REGULATIONS.

WARNING:
This installation is not for the tuning novice! Use this system with EXTREME caution! The AEM Infinity Programmable EMS allows for total flexibility in engine tuning. Misuse or improper tuning of this product can destroy your engine! If you are not well versed in engine dynamics and the tuning of engine management systems DO NOT attempt the installation. Refer the installation to an AEM-trained tuning shop or call 800-423-0046 for technical assistance.

NOTE: All supplied AEM calibrations, Wizards and other tuning information are offered as potential starting points only. IT IS THE RESPONSIBILITY OF THE ENGINE TUNER TO ULTIMATELY CONFIRM IF THE CALIBRATION IS SAFE FOR ITS INTENDED USE. AEM holds no responsibility for any engine damage that results from the misuse or mistuning of this product!

Note: The Infinity ECU instructions on this page are specific to a Plug & Play application. For general Infinity ECU instructions that are not specific to a Plug & Play application please click on the Infinity Series 7 tab or Infinity Series 5 tab using the buttons to the left in the vertical navigation menu.

The primary difference between the 30-7106 Infinity 506 and 30-7108 Infinity 508 is that the 508 lacks Peak & Hold injector drivers to run low impedance fuel injectors. High impedance (saturated, high-z) fuel injectors must be used with the Infinity 508.

The Infinity 506 and Infinity 508 share a common pinout with the exception of four pins where the Infinity 508 has two each additional fuel injector and ignition coil drivers. Due to the additional fuel injector and ignition coil drivers, the 8h has two fewer digital inputs and lowside outputs. Use of this harness with an Infinity-8h will require slight modification and could result in loss of some plug and play function.

Infinity Pin	Infinity 506 Function	Infinity 508 Function	30-3502 PnP Honda Pin	Notes
C1-3	Lowside6	Injector7	C5	LS6 on Infinity 506 or Injector7 on Infinity 508
C1-4	Lowside7	Injector8	C4	Available LS7 on Infinity 506 or Injector8 on Infinity 508
C1-31	Digital6	Coil7	Unpopulated	Available Digital6 on Infinity 506; Coil7 not used on Infinity 508.
C1-32	Digital7	Coil8	Unpopulated	Available Digital7 on Infinity 506; Coil8 not used on Infinity 508.

Features

Infinity Honda/Acura K-Series Plug & Play Harness with Expansion Port
Once you have determined which Infinity ECU will best support your Honda K-Series M/T engine, you will need to purchase the K-Series Plug & Play adapter harness (PN 30-3502). AEM’s Plug & Play harness for Honda/Acura K-Series engines includes a Wideband O2 connector, AEMnet connector for communication with other AEMnet enabled devices and an auxiliary connector with a High Performance DTM-Style 12P connector for adding common aftermarket sensors including fuel pressure, air inlet temperature, MAP, oil temperature and ethanol content sensor. The expansion port also includes a sensor ground, 5v reference, 12v power from relay and high side output for activating a relay or solenoid, a low side output for boost control and analog inputs for mode switch and no-lift shift.

The Infinity EMS delivers high-end engine control for the racing masses at a fraction of the cost. The Infinity Series 5 for Honda K-Series race engines is even more affordable than its larger Series 7 version because it is designed for smaller racing engines using low impedance injectors up to 6 cylinders or race engines driving up to 8 high impedance injectors. It features a smaller footprint than the Infinity Series 7 (5.855” x 5.55” x 1.8”) and a single, weatherproof 80-pin connector.

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.

The Infinity’s 200MHz processor and RTOS makes the Infinity more responsive, for a better driving experience
The Infinity’s 200MHz processor and RTOS allows for more accurate ignition timing, which enables an engine to create more power
The Infinity’s faster processor allows it to perform more computational features with no sacrifice in processing performance
The Infinity’s RTOS ensures strategic processing with optimized load balancing. This means that tuning one feature will not affect the performance of another feature

Airflow model based (VE) tuning
ECU Set Up Wizard simplifies start up
Flex Fuel compatible
Multi fuel capable
Drive by wire
Variable valve control
Multiple boost control strategies
Nitrous control
Map switching (on-the-fly)
Internal wideband UEGO air/fuel controller
Dual knock sensing circuits
Data logging up to 64 GB
Outputs to 3rd party dashes and loggers
Industry leading transfer speed
Integrated engine protection strategies
Sealed enclosure and IP67-rated comms ports

Capability

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. (SHOW IMAGE OF WIZARD). 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, 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).

MULTI-FUEL CAPABLE
The Infinity has the ability to run two separate fuel types simultaneously through staged fuel injection

DRIVE BY WIRE CAPABILITY
The Infinity Series 5 ECU can control one drive by wire throttle body 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.

IDLE CONTROL
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.

NITROUS CONTROL
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.

MAP SWITCHING
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 maps for multiple track conditions (practice map, rain map, qualifying map, FTW map)
Change boost target
Change Lambda target
Change ignition target
Tie boost, Lambda and ignition targets together and change them all
Ideal for test mapping during tuning
Change boost base duty
Control PWM switches (like water/methanol injection)
Choose between 2 VE tables for VVC or when restrictors are in place
Blend between flex fuel ignition maps
Blend by cam position and gear

ENGINE PROTECTION
Multiple engine protection strategies are incorporated into the Infinity ECU. Available strategies include:

MAP (create limp mode using Assumed Pressure Ratio table to compensate for pressure if sensor fails)
Overboost (boost fuel cut until boost/throttle decreases)
Fuel pressure (injector flow compensated for variations in pressure, sensor required)
Oil pressure (trigger light or limit RPM if pressure drops below set value, sensor required)
RPM (rev limiter)
Coolant temperature, Temp vs. RPM (fuel and ignition cut, sensor required)
Knock control with feedback
Lean protection (fuel and ignition cut)

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
A Bosch wideband controller is built into the Infinity ECU. 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.

RELIABILITY
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.

COMMUNICATIONS
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.

NETWORK INTERFACES
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.

Specs

Infinity Pin	Infinity 506 Function	Infinity 508 Function	30-3502 PnP Honda Pin	Notes
C1-3	Lowside6	Injector7	C5	LS6 on Infinity 506 or Injector7 on Infinity 508
C1-4	Lowside7	Injector8	C4	Available LS7 on Infinity 506 or Injector8 on Infinity 508
C1-31	Digital6	Coil7	Unpopulated	Available Digital6 on Infinity 506; Coil7 not used on Infinity 508.
C1-32	Digital7	Coil8	Unpopulated	Available Digital7 on Infinity 506; Coil8 not used on Infinity 508.

Click on the link for a PDF specifications sheet for all Infinity ECUs: Infinity ECU Specifications

SPECIFICATIONS	INFINITY 506 PN: 30-7106	INFINITY 508 PN: 30-7108
2-Stroke Engines	Yes	Yes
4-Stroke Engines	Yes	Yes
Cylinders	Up to 6	Up to 8
High Impedence Injectors (Sequential)	Up to 6	Up to 8
Low Impedence Injectors (Sequential)	Up to 6	N/A
Coils (0-5V Falling Edge)	Up to 6	Up to 8
Digital Inputs	Up to 6	Up to 6
VR/Mag Inputs	Up to 4	Up to 4
Analog Voltage Inputs	Up to 9	Up to 9
Analog Temp Inputs	Up to 3	Up to 3
Knock Control	2-Channel	2-Channel
On Board Wideband Air/Fuel Controllers	1	1
Drive-By-Wire	Single	Single
H-Bridge Channels	1	1
High Side Outputs	1	1
Low Side Outputs	8	6
Low Side Outputs that can be PWM	8	6
4-Wire Stepper Motor Control	Yes	Yes
CAN Channels	2	2
RS232 Channels*	1	1
Boost Control (RPM, Time, Gear, VSS, Switch Input, Flex Fuel Content)	Yes	Yes
Variable Cam Control	Up to 2	Up to 2
Engine Protection**	Yes	Yes
Launch Control	Yes	Yes
Nitrous Control	Single Stage	Single Stage
Traction Control	Up to 2-Wheel Speed	Up to 2-Wheel Speed
Data Logging	Up to 64GB	Up to 64GB
Weather Resistant Sealed Electronics	Yes	Yes
Connector Pins	80	80
Enclosure Dimensions	5.85" x 5.55" x 1.8"	5.85" x 5.55" x 1.8"
Weight	16.8oz / 476.27g	16.8oz / 476.27g

* Dual use pins. Tx and Tx shared with 2 digital inputs. DOES NOT OUTPUT AEM SERIAL DATA.
** Engine protection is programmable and can be coolant temp-, oil temp-, oil pressure-, AFR vs MAP, intake air temp-, knock- or fuel pressure-based.

Images/Video

PN: 30-7106 - Infinity 506 EMS PN: 30-7108 - Infinity 508 EMS The Infinity Series 5 is used with the Honda K Series PNP harness.	PN: 30-3502 - Infinity Series 5 ECU Honda K Series Engine Plug & Play Harness.	Connectors include aux port for ancillary sensors.
VE tuning explained.	Advantages of tuning with a VE-based ECU.	Infinity USB Driver Install on Windows7.
Infinity tuned racers at WCF 2013.	InfinityTuner Data Logging Playback Mode	InfinityTuner 3D gauge sweep.