Instruction Manual Universal 8 Infinity Supported Application STOP! THIS PRODUCT HAS LEGAL RESTRICTIONS. READ THIS BEFORE INSTALLING/USING! THIS PRODUCT MAY BE USED SOLELY ON VEHICLES USED IN SANCTIONED COMPETITION WHICH MAY NEVER BE USED UPON A PUBLIC ROAD OR HIGHWAY, UNLESS PERMITTED BY SPECIFIC REGULATORY EXEMPTION. (VISIT THE “EMISSIONS” PAGE AT HTTP://WWW.SEMASAN.COM/EMISSIONS FOR STATE BY STATE DETAILS.
OVERVIEW This document is intended to serve as a guide to help with the installation and setup of an AEM Infinity EMS onto a V8 engine using a universal wiring harness. Twelve combinations of different cam/crank triggers, sensors, and distributors were all individually tested and verified with the resulting base sessions made available for the end user. These session and configuration files are starting points only and will need to be tuned for your specific application.
Universal 8 3 DOWNLOADABLE FILES Files can be downloaded from www.aeminfinity.com. An experienced tuner must be available to configure and manipulate the data before driving can commence. The Quick Start Guide and Full Manual describe the steps for logging in and registering at www.aeminfinity.com. These documents are available for download in the Support section of the AEM Electronics website: http://www.aemelectronics.
30-3805-07 GM Stepper Idle Control Adapter Harness Adapter harness that mates GM stepper idle control valve to 30-3805 Core Harness. IAC connector is flat and meant for use with later model style control valves. 30-3805-08 Universal PWM Idle Control Adapter Harness Flying lead to mate universal PWM idle control valve to 30-3805 Core Harness. Connector to connect to control valve must be provided by end user. 30-3701 Plug & Pin Kit This kit includes mating connectors and terminals for the Infinity.
Universal 8 5 APPLICATIONS All of the different combinations of cam/crank triggers, sensors, and distributors were tested on a 350 Small Block Chevy (SBC). The information within this guide is specific to this engine and may not be applicable to other engine models. Configuration changes may be necessary if attempting to use the Infinity EMS on an application other than a SBC. Test engine specs: Make Chevrolet Model 1st Gen Small Block Disp 350CID/5.7L Bore 4.00" Stroke 3.
PARTS LIST Description Part Num ber Details Stand-Alone Distributors MSD Pro-Billet Cam Sync Distributor FAST Dual-Sync Billet Distributor 2345 Crank: VR, 4 teeth/rev, 8 teeth/cycle; Cam: VR, 1 tooth/cycle 305005 Crank: Hall, 4 teeth/rev, 8 teeth/cycle; Cam: Hall, 1 tooth/cycle 85551 8 tooth reluctor w heel w ith VR pickup, must be modified to output 1 tooth/cycle Cam Trigger Distributor MSD Chevy V8 Pro-Billet Mech Adv Dist Crank Triggers Holley SBC Crank Trigger Kit 556-110 60-2 trigger w h
Universal 8 7 INSTALLATION MSD Distributor + Holley 60-2 Crank Trigger Kit 1. Modify and install mechanical advance distributor. (See Modifying Mechanical Advance Distributor, in this document.) 2. Install Holley 60-2 crank trigger kit. Orientate crank trigger wheel such that the missing tooth section is at the 9 o’clock position with the engine at TDC. Position the crank sensor such that it’s lined up with the leading edge of the 5th tooth after the missing tooth section with the engine at TDC.
4. Load Holley 60-2 base session and review Setup Wizard. (See Setup Wizard, in this document.) 5. Sync ignition timing. (See Syncing Ignition Timing, in this document.
Universal 8 9 MSD Distributor + MSD 4 Magnet Crank Trigger Kit 1. Modify and install mechanical advance distributor. (See Modifying Mechanical Advance Distributor, in this document.) 2. Install MSD crank trigger kit. Orientate crank trigger wheel such that the arrow on the face of the trigger wheel is between the 10 o’clock and 11 o’clock position with the engine at TDC. Position the crank sensor such that it’s approximately in the middle of the adjustment range. Set sensor air gap to .060”. 3.
MSD Distributor + ATI AEM 24 Tooth + Honeywell Std Output VR Sensor 1. Modify and install mechanical advance distributor. (See Modifying Mechanical Advance Distributor, in this document.) 2. Install ATI AEM Infinity crank trigger. (Note that an adjustable sensor mount is not provided with the ATI crank trigger.) Position the crank sensor to be near the middle of its adjustment range while being in between crank teeth with the engine at TDC. Set sensor air gap to .011”. 3.
Universal 8 11 MSD Distributor + ATI AEM 24 Tooth + Honeywell High Output VR Sensor 1. Modify and install mechanical advance distributor. (See Modifying Mechanical Advance Distributor, in this document.) 2. Install ATI AEM Infinity crank trigger. (Note that an adjustable sensor mount is not provided with the ATI crank trigger.) Position the crank sensor to be near the middle of its adjustment range while being in between crank teeth with the engine at TDC. Set sensor output to .011”. 3.
MSD Distributor + ATI AEM 24 Tooth + Honeywell Hall Effect Sensor 1. Modify and install mechanical advance distributor. (See Modifying Mechanical Advance Distributor, in this document.) 2. Install ATI AEM Infinity crank trigger. (Note that an adjustable sensor mount is not provided with the ATI crank trigger.) Position the crank sensor to be near the middle of its adjustment range while being in between crank teeth with the engine at TDC. Set sensor air gap to .020”. 3.
Universal 8 13 MSD Distributor + ATI AEM 24 Tooth + Honeywell GT101 Sensor 1. Modify and install mechanical advance distributor. (See Modifying Mechanical Advance Distributor, in this document.) 2. Install ATI AEM Infinity crank trigger. (Note that an adjustable sensor mount is not provided with the ATI crank trigger.) Position the crank sensor to be near the middle of its adjustment range while being in between crank teeth with the engine at TDC. Set sensor air gap to .040”. 3.
MSD Distributor + ATI AEM 24 Tooth + MSD Magnetic VR Sensor 1. Modify and install mechanical advance distributor. (See Modifying Mechanical Advance Distributor, in this document.) 2. Install ATI AEM Infinity crank trigger. (Note that an adjustable sensor mount is not provided with the ATI crank trigger.) Position the crank sensor to be near the middle of its adjustment range while being in between crank teeth with the engine at TDC. Set sensor air gap to .022”. 3.
Universal 8 15 MSD Distributor + ATI Flying Magnet + Honeywell Hall Effect Sensor 1. Modify and install mechanical advance distributor. (See Modifying Mechanical Advance Distributor, in this document.) 2. Install ATI Flying Magnet crank trigger. (Note that an adjustable sensor mount is not provided with the ATI crank trigger.) Position the crank sensor to be near the middle of its adjustment range while being in between magnet targets with the engine at TDC. Set sensor air gap to .020”. 3.
MSD Distributor + ATI Flying Magnet + Honeywell GT101 Sensor 1. Modify and install mechanical distributor. (See Modifying Mechanical Advance Distributor, in this document.) 2. Install ATI Flying Magnet crank trigger. (Note that an adjustable sensor mount is not provided with the ATI crank trigger.) Position the crank sensor to be near the middle of its adjustment range while being in between magnet targets with the engine at TDC. Set sensor air gap to .053”. 3.
Universal 8 17 MSD Distributor + ATI Flying Magnet + MSD Non-Magnetic VR Sensor 1. Modify and install mechanical advance distributor. (See Modifying Mechanical Advance Distributor, in this document.) 2. Install ATI Flying Magnet crank trigger. (Note that an adjustable sensor mount is not provided with the ATI crank trigger.) Position the crank sensor to be near the middle of its adjustment range while being in between magnet targets with the engine at TDC. Set sensor air gap to .040”. 3.
MSD 2345 Cam Sync Distributor The MSD 2345 Cam Sync distributor outputs both an 8 tooth per cycle VR crank position signal and a single VR cam position signal. As the distributor comes assembled from the factory, a crank trigger tooth is being sensed at the same time that the cam trigger is being sensed. Ideally, the cam signal will occur with some “buffer” time before the next crank tooth is sensed by the crank sensor.
Universal 8 19 5. With cam trigger magnet in center of sensor hole, check the position of the crank trigger tooth that’s nearest the crank sensor pickup. If crank trigger tooth is currently inline with crank sensor pickup, the cam sensor mount will need to be adjusted so that a crank trigger tooth is NOT being sensed by the crank sensor when the cam trigger is being sensed by the cam sensor. 6.
FAST Dual-Sync Distributor The FAST Dual-Sync distributor outputs both an 8 tooth per cycle Hall Effect crank position signal and a single Hall Effect cam position signal. The cam and crank sensor pickups inside the distributor are fixed thus no adjustment is necessary. **NOTE** During testing, this distributor exhibited degraded ignition timing accuracy. AEM recommends thoroughly testing any "dual sync" style distributor to ensure that it offers acceptable ignition timing control. 1.
Universal 8 21 Modifying Mechanical Advance Distributor The following steps outline the necessary steps to modify a mechanical advance distributor for use with the AEM Infinity EMS. Of particular importance is identifying the correct tooth on the eight tooth reluctor wheel that is to become the single pulse cam trigger once all other teeth have been removed in order to achieve proper ignition sync and rotor phasing.
Step 2 Once terminal #1 has been identified, mark the distributor base to indicate where terminal #1 is along with the terminal before terminal #1 (terminal #2 for Chevy). Apply masking tape to the housing first if you do not wish to permanently mark the distributor. Step 3 Remove distributor cap. Look under distributor rotor to see 8 tooth reluctor wheel and sensor pickup. Turn distributor shaft to position the rotor at the terminal BEFORE terminal #1 (#2 for Chevy).
Universal 8 Step 5 Remove rotor and mechanical advance components (springs, weights, etc.) including small lock nut (circle) on the advance stop bushing pin from under advance mechanism. Step 6 Remove roll pin from drive gear and then remove gear from shaft. This is best completed using an arbor or hydraulic press so pressure can be applied in a slow and controlled manner. Trying to drive the pin out with a hammer and punch could potentially damage the drive gear or the distributor itself.
Step 8 Remove the lower section of the advance mechanism that has the 8 tooth reluctor wheel on it by sliding it down and off the shaft. Step 9 Carefully remove the appropriate teeth leaving only the single tooth identified in step 3. An air grinder with cut off wheel followed by a sanding disc works well for this operation. Step 10 Re-assemble the advance mechanism by sliding the lower section back onto the shaft.
Universal 8 25 Step 11 Re-assemble the distributor and perform final check of proper relationship between rotor, single tooth target, and sensor pickup. When rotor is aligned with the terminal BEFORE terminal #1 (#2 for Chevy), the single tooth target should be aligned with the sensor pickup. Continuing to rotate the distributor shaft to align the rotor with terminal #1 should mean that the single tooth should have rotated past the sensor pickup.
Installing Distributor Step 1 The distributor is going to be installed with the cap hold down hardware orientated across the engine (dashed line), terminal #1 is the terminal that points towards cylinder #1 (arrow) and wiring loom coming out of distributor is on the right.
Universal 8 27 Step 2 Rotate engine to TDC compression for cylinder #1. Verify that engine is at TDC compression by checking that both the intake and exhaust valves for cylinder #1 are closed. Alternatively, the engine can be cranked over using the starter motor with the spark plug for cylinder #1 removed.
LOADING BASE SESSION For each different combination of cam/crank triggers and distributors used, there is a provided base session that must be loaded into the Infinity ECU. Once the base session has been loaded, the setup wizards will need to be reviewed and the ignition timing will need to be synced using the InfinityV8 layout. 1. Connect USB comms cable between ECU and PC. 2. Turn ignition switch on. 3. Open InfinityTuner; connection status should be green and indicate ECU type. 4.
Universal 8 29 SETUP WIZARD The follow is an overview of the basic wizard settings that need to be checked before attempting to start and run an engine. Please refer to the main Infinity user guide for information about the advanced wizard settings. Engine Set engine displacement, number of cylinders, engine cycle type, ignition type, and firing order as necessary.
Cam/Crank The cam/crank wizard selects the sensor type, trigger pattern and noise filter settings. Note that “No wizard is selected or matched” may be indicated because the loaded base session has cam/crank setting values that have already been set for the specific combination that do not match the preset wizard values. Selecting a preset cam/crank wizard configuration will overwrite any cam/crank settings that may already exist in the base session.
Universal 8 31 Injector Setup Verify number of injectors and select Primary Injector Fuel Type (gasoline, ethanol, methanol, E85, or flex fuel). Injector phasing values are automatically set based on the firing order selected in the Engine wizard and should not need adjusting. Injector Flow Select Primary Fuel Pressure Regulator Reference (manifold or atmospheric) and Primary Injector Flow Wizard.
Basic Sensors Air/Coolant Temperature Select the air and coolant temperature sensors being used. Fuel Pressure Set the Static Fuel Pressure value. If using a fuel pressure sensor, check Calculate Fuel Pressure from Sensor and then browse to select the correct Fuel Pressure Sensor wizard setting. If not using a preselected pressure sensor, input sensor calibration values.
Universal 8 Idle Set the idle activation criteria. Main Rev Limiter Set desired main rev limiter settings. Set Throttle Range Follow the indicated steps to set the throttle range.
Lambda Control It is generally recommend that lambda feedback not be used during initial VE table tuning. Uncheck Lambda Feedback Enable. User GPOs Set the Fuel Pump Prime Time and Coolant Fan 1/2 On/Off Temp (if used) values.
Universal 8 35 SYNCING IGNITION TIMING Syncing the ignition timing ensures that the indicated ignition timing in the software matches the actual ignition timing on the engine when checked with a timing light. Although the previous setup instructions may have been closely followed when configuring the cam and crank inputs, it should still be considered mandatory that the ignition timing be correctly synced before attempting to start and run the engine. 1.
If ignition timing is properly synced but injector phasing is incorrect, the CamSyncAdjustment (initial) value can be offset by an increment of 90° to properly phase the injectors. To do this, change the CamSyncAdjustment (initial) value by however many crank teeth (ignoring missing teeth) occur in 90° of crank rotation. For a 60-2 crank wheel this is 15; for a 12 tooth trigger wheel this is 3; for a 4 tooth trigger wheel this is 1.
Universal 8 37 PINOUTS Infinity Pinout Infinity Pin C1-1 Hardware Ref. LowsideSwitch_4* Dedicated Dedicated and not reconfigurable Assigned Assigned but reconfigurable Available Available for user setup Not Applicable Not used in this configuration Required Required for proper function 7100-XXXX-62 7101-XXXX-63 Function Hardware Specification Notes LS4 Lowside switch, 4A max, NO internal f ly back diode. Normally used as A/C Relay Control output.
Infinity Pin Hardware Ref. 7100-XXXX-62 7101-XXXX-63 Function Hardware Specification Notes C1-12 Coil 3 Coil 3 25 mA max source current 0–5V Falling edge f ire. DO NOT connect directly to coil primary . Must use an ignitor OR CDI that accepts a FALLING edge f ire signal. C1-13 Coil 2 Coil 2 25 mA max source current 0–5V Falling edge f ire. DO NOT connect directly to coil primary . Must use an ignitor OR CDI that accepts a FALLING edge f ire signal.
Universal 8 Infinity Pin Hardware Ref. 7100-XXXX-62 7101-XXXX-63 Function C1-30 Power Ground C1-31 CANL_Aout C1-32 CANH_Aout C1-33 LowsideSwitch_1 Boost Control C1-34 LowsideSwitch_0 Fuel Pump C1-35 C1-36 C1-37 C1-38 C1-39 Analog_In_7 Analog_In_8 Analog_In_9 Analog_In_10 Analog_In_11 C1-40 Analog_In_12 C1-41 +5V_Out_1 © 2014 AEM Performance Electronics Ground Hardware Specification 39 Notes Power Ground Connect directly to battery ground.
Infinity Pin Hardware Ref. C1-42 +5V_Out_1 C1-43 HighsideSwitch_1* C1-44 HighsideSwitch_0* C1-45 Crankshaf t Position Sensor VR+ 7100-XXXX-62 7101-XXXX-63 Function Hardware Specification Notes Regulated, f used +5V supply f or sensor power Analog sensor power HS1 (switched 12V) 0.7A max, High Side Solid State Relay See Setup Wizard page 'HighSide Assigment Tables' f or conf iguration options. *Pin not populated in 30-3805 Univ ersal V8 Base harness. HS0 (switched 12V) 0.
Universal 8 Infinity Pin Hardware Ref. 7100-XXXX-62 7101-XXXX-63 Function Hardware Specification 41 Notes 12 v olt power f rom relay 12 v olt power f rom relay . Relay must be controlled by +12V Relay Control signal, pin C1-29 abov e. Injector 2 Saturated or peak and hold, 3A max continuous Injector 2 Injector 1 Saturated or peak and hold, 3A max continuous Injector 1 12 v olt power f rom relay 12 v olt power f rom relay .
Infinity Pin Hardware Ref. 7100-XXXX-62 7101-XXXX-63 Function Hardware Specification Notes C2-8 Power Ground* Ground Power Ground Connect directly to battery ground. *Pin not populated in 30-3805 Univ ersal V8 Base harness. C2-9 +12V +12V In 12 v olt power f rom relay 12 v olt power f rom relay . Relay must be controlled by +12V Relay Control signal, pin C1-29 abov e.
Universal 8 Infinity Pin C2-20 Hardware Ref. Analog_In_15* 7100-XXXX-62 7101-XXXX-63 Function Spare Analog Input Spare Analog Input Hardware Specification 43 Notes 12 bit A/D, 100K pullup to 5V 0–5V analog signal. Use +5V Out pins as power supply and Sensor Ground pins as the low ref erence. Do not connect signals ref erenced to +12V as this can permanently damage the ECU. Normally used as Exhaust Back Pressure input. *Pin not populated in 30-3805 Univ ersal V8 Base harness.
Infinity Pin C2-35 Hardware Ref. Analog_In_22* 7100-XXXX-62 7101-XXXX-63 Function Spare Analog Input Hardware Specification Notes 12 bit A/D, 100K pullup to 5V 0–5V analog signal. Use +5V Out pins as power supply and Sensor Ground pins as the low ref erence. Do not connect signals ref erenced to +12V as this can permanently damage the ECU. Normally used as USB Logging Request input. *Pin not populated in 30-3805 Univ ersal V8 Base harness.
Universal 8 Infinity Pin Hardware Ref. 7100-XXXX-62 7101-XXXX-63 Function Hardware Specification 45 Notes C2-51 Coil 7 Coil 7 25 mA max source current 0–5V Falling edge f ire. DO NOT connect directly to coil primary . Must use an ignitor OR CDI that accepts a FALLING edge f ire signal. C2-52 Coil 8 Coil 8 25 mA max source current 0–5V Falling edge f ire. DO NOT connect directly to coil primary . Must use an ignitor OR CDI that accepts a FALLING edge f ire signal.
12 MONTH LIMITED WARRANTY Advanced Engine Management Inc. warrants to the consumer that all AEM High Performance products will be free from defects in material and workmanship for a period of twelve (12) months from date of the original purchase. Products that fail within this 12-month warranty period will be repaired or replaced at AEM’s option, when determined by AEM that the product failed due to defects in material or workmanship.
