ACCEL 500 ELECTRONIC IGNITION CONTROL
FORM 1486AC 11/06INSTALLATION INSTRUCTIONSACCEL 500 ELECTRONICIGNITION CONTROLACCEL 500 SYSTEM PART NO. 49500FOR APPLICATIONS TRIGGERED BY POINTS, ACCEL ELECTRONIC IGNITION DISTRIBUTOR(ALL MODELS), ORIGINAL EQUIPMENT ELECTRONIC IGNITION AMPLIFIERS AND MAGNETIC TRIGGERPULSES (MAGNETIC PICKUP DISTRIBUTOR OR CRANK TRIGGER IGNITION). OPTIONAL ADAPTERSARE AVAILABLE FOR EASY CONNECTION TO EARLY MODEL DELCO/GM HEI SYSTEMS, LATE MODELGM HEI/EST SYSTEMS, FORD TFI SYSTEMS, AND OEM MAGNETIC PICKUP (NON-COMPUTER; FORDDURASPARK, GM HEI AND MOPAR/CHRYSLER ELECTRONIC SYSTEMS).NOTE: ACCEL 500 ELECTRONIC IGNITION CONTROLS ARE NOT COMPATIBLE WITHDISTRIBUTORLESS SYSTEMS OR POSITIVE GROUND APPLICATIONS. THE RPM LIMITERS IN THEACCEL 500 (PART NO. 49500) WILL NOT WORK PROPERLY WITH ODD-FIRE OR SEMI-EVEN FIRE V6APPLICATIONS.PARTS INCLUDED IN THIS KIT:1111ACCEL 500 Electronic Ignition Control - Part No. 49500Ignition Control HarnessUniversal Installation Hardware KitHand Held ControllerWARNING: USE ONLY SUPPRESSION CORE STYLE SPARK PLUG WIRES WITH THEACCEL 500 IGNITION CONTROL.KEEP ALL IGNITION SYSTEM WIRES AS FAR FROM SPARK PLUG WIRES AS POSSIBLE.CONTENTSGeneral InformationIgnition Ballast Resistor/Loom Resistance WireStandard Ignition Bypass (Bypass Connector)Ignition CoilsFuel InjectionSpark Plug WiresSpark Plug GapsElectric WeldingMounting ProcedureMounting to a Flat Surface Without BracketsMounting to a Flat or Uneven Surface Using BracketsMounting to a Flat Surface with Shock MountsWiring ProcedureWiring Method using Adapters and HarnessesGM HEI Systems/coil-in-cap with OEM module)Late Model GM HEI/EST Systems (external coil)Ford TFI Systems22222222222233444Ford DuraSpark Systems (non-computer type,without module)5Early Model GM HEI Systems (non-computer type,without module)5ACCEL IGNITIONMopar/Chrysler Corp. Electronic Systems(non-computer type, without module)7Wiring Method Without Adapters7ACCEL Electronic Ignition, Street Billet Distributors,Magnetic Breakerless Distributors or ElectronicAdvance Distributors (3-wire/red, brown, green)7For OEM Electronic Systems with modules/amplifiers(Chrysler, Ford, and import)7Magnetic Pickup Trigger Pulses (magneticpickup distributors or crank trigger ignition)8ACCEL 500 Ignition System Features11Bypass Connector11www.accel-ignition.com1
GENERAL INFORMATIONThe ACCEL 500 Ignition System Part Nos. 49500 arenot for marine use.The RPM limiters in the ACCEL 500 is not recommendedas an engine speed governor. The use of the RPM limitersis not recommended for applications equipped with acatalytic converter. Similarly, forcing engine RPM past theRPM limiter continuously for long sustained intervals cancause fuel build up in the exhaust system that mayadversely affect your application. The RPM limiting systemswill not work properly with odd-fire V6 applications.External RPM LimitersMallory Proportional RPM Limiter Part Nos. 641-4, 641-6,641-8, 642, 643 and 644 WILL NOT function with theACCEL 500 Electronic Ignition Controls.MOUNTING PROCEDUREStep 1FIGURE 1500 Ignition Ballast Resistor / Loom Resistance WireThe performance of the ACCEL 500 is not affected bythe presence of the factory ignition resistors or ignitionballast resistors in the wire from the ignition switch.Standard Ignition Bypass (Bypass Connector)The Bypass Connector (supplied) fits into the IgnitionControl Harness to convert back to standard ignition. Ifyou use the Bypass Connector, use ignition ballastresistors designed for your vehicle’s distributor and coil(see diagrams for more information). This bypass methoddoes not work with magnetic pickup distributor or cranktrigger ignition. Racing Applications: It is not necessary toinstall ignition ballast resistors. However, do not use theBypass Connector until the ignition ballast resistors areinstalled in the wire from the ignition switch.Ignition CoilsThe ACCEL 500 Electronic Ignition Controls are designedto work with most original equipment ignition coils. Foroptimum performance use the ACCEL E Coil Part Number140009 (Up to 7,500 RPM), Part No. 140019 (Up to 10,000RPM), Mallory PROMASTER Coil Part No. 29440 (up to7,500 RPM) or Part No. 29625 (up to 10,000 RPM).Fuel InjectionSome fuel injection systems need a voltage spike signalfrom the ignition coil before they will operate properly.This signal changes once ACCEL 500 Electronic IgnitionControls are installed. The Mallory Fuel Injection andTachometer Adapters Part Nos. 29074 and 29078 supplythe proper signal to the vehicle computer to operate thefuel injection system. Installation procedure and diagramsare supplied with these adapters.Spark Plug WiresYOU MUST USE suppression type (carbon core, spiralcore, suppression core) spark plug wire. We recommendspiral core ignition wire, such as ACCEL 300 Race IgnitionWire. Suppression type spark plug wires prevent falsetriggering and possible prematureignition or accessory failures. DO NOT USE solid core (coppercore; stainless steel core) spark plug wire with any electronicignition system or accessory.Spark Plug GapsFor street applications, use your engine manufacturer’sspecifications. For racing applications, start with yourengine manufacturer’s specifications, then experimentwith, and closely monitor, various gaps to achievemaximum performance.Electric WeldingUnplug the Ignition Control Harness from the ACCEL 500 Electronic Ignition Control and unplug any distributorharnesses (if possible) before any welding is done on thevehicle.2Disconnect the battery (–) cable to cut power to the system.Computerized vehicles: Disconnect the battery (–) cableand let the vehicle sit overnight before proceeding. Thisallows the computer to calibrate for the new ignition.Step 2Select a convenient location to mount the ACCEL 500 Electronic Ignition Control. Keep the unit away from hotengine components or extreme heat such as the exhaustsystem and manifolds. Also, keep it away from movingdevices, such as fans, belts and linkages. The locationmust be dry. Excessive moisture will damage componentsinside the unit. Chose a location that will allow easyaccess to the control port for adjusting the variousfunctions of the ignition.Step 3Choose one mounting method listed below for mountingthe ACCEL 500 Electronic Ignition Control (3a, 3b, or 3c).(3a) Mounting to a flat surface Center punch the mounting pattern on the mountingsurface using the housing holes to mark locations fordrilling mounting holes. Drill holes using a 7/32” drill bit. Hold the ACCEL 500 Electronic Ignition Control inposition over the mounting holes. From the backside of the mounting surface, insert the10-32 screws with lock washers through the mountingholes and attach with the 10-32 nuts supplied.(3c) Mounting to a flat surface with shock mounts (availableseparately, PN 29069) Center punch the mounting pattern on the mountingsurface using the housing holes to mark locations fordrilling mounting holes. Drill holes using a 7/32” drill bit. Install the shock mounts into the side flanges of theACCEL 500 and tighten nuts. Hold the unit in positionwhere it will be mounted. From the backside of the mounting surface, insert the10-32 nuts with lock washers onto the shock mountstuds. Tighten each nut until snug. When running shockmounts, it is necessary to run a ground wire (10-14 gauge)from the ignition housing to a chassis ground.www.accel-ignition.comACCEL IGNITION
BASIC WIRING PROCEDUREPART NO. 29062 – Connecting to Ford TFI Systems.Step 1Refer to Figure 2Ensure that your vehicle is equipped with a ground cablebetween the engine block and firewall (10 gauge or largeris required). Locate the harness with the LONG RED WIREand one LONG BLACK WIRE at the end plate of theACCEL 500 Electronic Ignition Control. Connect the LONG RED WIRE to the battery ( ) post orbattery ( ) terminal on the starter solenoid. Connect the LONG BLACK WIRE to engine ground orchassis ground. Plug into 2-pin connector with red and black wirescoming from the end plate on the ACCEL 500 . Connect the Ignition Control Harness to the IgnitionControl Plug at the end plate of the ACCEL 500 Electronic Ignition Control.PART NOS. 29039 and 29040 – Connecting to FordDuraSpark Systems (non-computer type, without ignitionmodule).Step 2Choose one method listed below for wiring the ACCEL500 Electronic Ignition Control (2a, 2b, or 2c)(2a) Wiring method using Adapters and Harnesses(sold separately)Special Mallory wiring Adapters and Harnesses simplify theinstallation of the ACCEL 500 Electronic Ignition Controlinto newer vehicles. These adapters and harnesses allowyou to connect the ACCEL 500 Electronic Ignition Controlbetween the ignition coil and the factory coil connector.They reduce installation time and wiring errors. Also,converting back to the factory ignition is easy becausethere is no need to cut the original wiring.These instructions cover:PART NO. 29042 – Connecting to GM HEI Systems(coil-in-cap, with OEM ignition module)PART NO. 29068 – Connecting to Late Model GMHEI/EST Systems (external coil)PART NOS. 29040 and 29043 – Connecting to EarlyModel GM HEI Systems (non-computer type, withoutignition module)PART NO. 29040 – Connecting to Mopar/ChryslerElectronic Systems (non-computer type, without ignitionmodule).Connecting to: GM HEI Systems (coil-in-cap, with OEM ignitionmodule), use Adapter PART NO. 29042; Late Model GM HEI/ESTSystems, use Adapter PART NO. 29068; Ford TFI Systems, useAdapter PART NO. 29062.Connecting Adapter PART NO. 29042, 29062 or 29068Refer to Figures 3, 4, and 7 when connecting to GM HEISystems; Figure 5 when connecting to Late Model GMHEI/EST Systems; Figure 6 when connecting to Ford TFISystems. Match wires by color from the Adapter to the IgnitionControl Harness. Crimp all wires together. Disconnect the factory harness(es) at the ignition coil.Connect them to the Adapter that has the RED andGREEN WIRES. Connect the Adapter that has the YELLOW and BLACKWIRES to the ignition coil. NOTE: When using anaftermarket ignition coil with post type terminals, discardthe Adapter that has the YELLOW and BLACK WIRES.Install ring terminals on the Ignition Control HarnessYELLOW and BLACK WIRES. Connect the YELLOWWIRE to the ignition coil ( ) terminal. DO NOT allow anywire except the YELLOW WIRE to make contact with theignition coil ( ) terminal. Connect the BLACK WIRE to theignition coil (–) terminal.FIGURE 3FIGURE 2ACCEL 300 BLABROACCEL IGNITIONwww.accel-ignition.com3
FIGURE 4GM/DELCO HEI DISTRIBUTOR (WITH COIL MOUNTED IINSIDE DISTRIBUTOR CAP)ACCEL 300 4FIGURE 5GM HEI/EST DISTRIIBUTOR - EXTERNAL COILFIGURE 6FORD TFI SYSTEMSwww.accel-ignition.comACCEL IGNITION
FIGURE 7ACCEL 300 500 FIGURE 8ACCEL IGNITIONwww.accel-ignition.com5
FIGURE 9300 RACEFIGURE 10300 RACE6www.accel-ignition.comACCEL IGNITION
FIGURE 11FIGURE 12FIGURE 13MOPAR/CHRYSLER
FIGURE 14COMMON COLORS FOR MAG PICKUP WIRESDistributorMag Mag –Mallory Crank TriggerPurpleGreenMallory Billet Competition Distributor,Series Nos. 81 and 84OrangePurpleMallory COMP 9000 Series Nos. 96-99OrangePurpleMallory Harness P/N 29040RedBlackMSDOrange/Black Violet/BlackMSD Crank TriggerOrange/Black Violet/BlackFordOrangePurpleACCEL 46/48000 SeriesOrange/Black Violet/BlackACCEL 51/61000 SeriesRedBlackChryslerOrange/WhiteBlackACCEL 71/52 SeriesOrangeViolet8www.accel-ignition.comACCEL IGNITION
Connecting to Ford DuraSpark Systems (non-computer type) usingAdapter PART NO. 29039 and Harness PART NO. 29040 for OEMmagnetic pickupRefer to Figure 8 while performing the following steps.Connecting to Early Model GM HEI Systems (non-computer type)using Adapter PART NO. 29043 and Harness PART NO. 29040 forOEM magnetic pick-up. Refer to Figures 11 and 12 whileperforming the following steps.Connecting Adapter PART NO. 29039:Connecting Adapter PART NO. 29043: Disconnect all connectors at the ignition module, ignitioncoil and distributor. Remove the ignition module. Removethe distributor and coil harnesses.For coil-in-cap distributors only Connect the Adapter ORANGE WIRE to the distributorplug’s ORANGE WIRE. Connect the Adapter YELLOW WIRE to the distributorplug’s PURPLE WIRE. Connect the other Adapter female socket to the vehicle’smatching male socket. (The matching male socket wasoriginally connected the ignition module.) Disconnect the (RED or PINK) BAT PLUG/wire from thedistributor cap. Disconnect the tachometer wire from the TACH terminalon the distributor cap. Disconnect the distributor plug from the distributor cap.For coil-in-cap distributors and external coil Remove the distributor cap. Disconnect the pickup plug from the ignition module.Connecting the Harness PART NO. 29040: Remove the ignition module, radio noise filter/capacitorand distributor plug harness. Connect the ACCEL 500 Electronic Ignition Control’sSMALL GREEN WIRE to the Harness RED WIRE. Slide the Adapter ORANGE and YELLOW WIRES throughthe grommet (supplied). Connect the ACCEL 500 Electronic Ignition Control’sSMALL BLACK WIRE to the Harness BLACK WIRE. Connect the Adapter ORANGE WIRE to the pickup plug’sWHITE WIRE. Connect the mating plug of the Harness to the matingplug of the Adapter Part No. 29039 from the distributor. Connect the Adapter YELLOW WIRE to the pickup plug’sGREEN WIRE.Connecting the Ignition Control Harness: Position the grommet into the slot on the edge of thedistributor housing. Use cable ties and 8-32 screws tohold wires in place. Route the Ignition Control Harness to the coil so that itswires do not make contact with extreme heat, sharpobjects or moving devises such as fans, belts andlinkages. Install the distributor cap.Connecting the Harness PART NO. 29040: Crimp the Ignition Control Harness RED WIRE to the sliceconnector on the Adapter Part No. 29039 female socket. Connect the ACCEL 500 Electronic Ignition Control’sSMALL GREEN WIRE to the Harness RED WIRE. Crimp a spade receptacle terminal on the Ignition ControlHarness YELLOW WIRE. Connect the YELLOW WIRE tothe ignition coil ( ) terminal. DO NOT allow any wireexcept the YELLOW WIRE to make contact with the coil( ) terminal. Connect the ACCEL 500 Electronic Ignition Control’sSMALL BLACK WIRE to the Harness BLACK WIRE. Crimp a spade receptacle terminal on the Ignition ControlHarness BLACK WIRE. Connect the BLACK WIRE to theignition coil (–) terminal.Connecting the Ignition Control Harness: NOTE: Do not connect the GREEN WIRE of the IgnitionControl Harness to anything. Tape the end of the wire toinsulate it. Go to Step 3, page 11.ACCEL IGNITION Connect the mating plug of the Harness to the matingplug of the Adapter Part No. 29043 from the distributor. Route the Ignition Control Harness to the coil so that itswires do not make contact with extreme heat, sharpobjects or moving devises such as fans, belts andlinkages. Crimp a spade terminal on the Ignition Control HarnessRED WIRE.www.accel-ignition.com9
Connecting the Ignition Control Harness:For coil-in-cap distributors onlyRefer to Figure 9 while performing the following steps. Connect the BAT PLUG/wire to the RED WIRE. Crimp the YELLOW WIRE to the YELLOW WIRE of theAdapter Part No. 29043 3-pin connector. Route the Ignition Control Harness to the ignition coil sothat its wires do not make contact with extreme heat,sharp objects or moving devices such as fans, belts andlinkages. Plug the Adapter Part No. 29043 3-pin connector into thedistributor cap. Connect the RED WIRE to the terminal on the ignitionballast resistor that previously had the DARK GREEN/REDWIRE connected to it (or to a 12-volt wire from the ignitionswitch). NOTE: The RED WIRE must get voltage when theignition switch is in the START and RUN positions. Note: DO NOT connect the GREEN WIRE of the IgnitionControl Harness to anything. Tape the end of it to insulateit. Connect the YELLOW WIRE to the ignition coil ( )terminal. DO NOT allow any wire except the YELLOWWIRE to make contact with the ignition coil ( ) terminal. Go to Step 3, page 11. Connect the BLACK WIRE to the ignition coil (–) terminal.For external coil only DO NOT connect the GREEN WIRE of the Ignition ControlHarness to anything. Tape the end of it to insulate it.Refer to Figure 11 while performing the following steps.(Replace the words “spade receptacle terminal” with “ring terminal” when aftermarket coils with post type terminals are used.) Go to Step 3, page 11. Crimp the BLACK WIRE to the BROWN WIRE of theAdapter Part No. 29043 3-pin connector. Disconnect the BAT wire from the ignition coil BAT/( )terminal. Connect the BAT wire to the RED WIRE. Disconnect the tachometer wire from the ignition coilTACH/(–) terminal. Crimp a spade receptacle terminal on the Ignition ControlHarness YELLOW WIRE. Connect the YELLOW WIRE tothe ignition coil BAT/( ) terminal. DO NOT allow any wireexcept the YELLOW WIRE to make contact with theignition coil BAT/( ) terminal. Crimp a spade receptacle terminal on the Ignition ControlHarness BLACK WIRE. Connect the BLACK WIRE to theignition coil BAT/(–) terminal.(2b) Wiring method without adapters; Mallory ElectronicIgnitions (three wire/red, brown, green); OEM electronicignition amplifiers.Refer to: Figure 12 for Mallory UNILITE Distributors, MagneticBreakerless Distributors or Electronic Advance Distributors (threewire/red, brown, green); Figure 14 for OEM electronic ignitionamplifiersConnecting the Ignition Control Harness Route the Ignition Control Harness to the ignition coil sothat its wires do not make contact with extreme heat,sharp objects or moving devises such as fans, belts andlinkages.Refer to Figure 13 while performing the following steps. Disconnect ALL wires located on the ignition coil ( )terminal. These include the wires from the ignitionswitch/ignition ballast resistor, start/ignition bypass andany other wires normally connected to the ignition coil ( )terminal. Connect these wires to the RED WIRE. NOTE:The RED WIRE must get voltage when the ignition switchis in the START and RUN positions. If you are using aMallory Electronic Ignition, connect its BROWN WIRE toengine ground and add its RED WIRE to the IgnitionControl Harness RED WIRE. Use Ring TerminalConnectors to join wires together (See page 2 - IgnitionBallast Resistor / Loom Resistance Wire and StandardIgnition Bypass). Disconnect all connectors at the ignition module, ignitioncoil and distributor. Remove the ignition module. Takenotice of a DARK GREEN/RED WIRE connected to theignition ballast resistor. Remove the distributor and coilharnesses. Similarly, disconnect ALL wires located on the ignition coil(–) terminal. Connect these wires to the GREEN WIRE. Ifyou are using a Mallory Electronic Ignition, add its GREENWIRE to the Ignition Control Harness GREEN WIRE. UseRing Terminal Connectors to join wires together.Connecting the Harness PART NO. 29040: Connect the YELLOW WIRE to the ignition coil ( )terminal. DO NOT allow any wire except the YELLOWWIRE to make contact with the ignition coil ( ) terminal. Discard the adapter plug with the yellow and brown wiresfrom the Adapter PART NO. 29043. It is not used onexternal ignition coil HEI systems. Note: DO NOT connect the GREEN WIRE of the IgnitionControl Harness to anything. Tape the end of it to insulateit. Go to Step 3, page 11.Connecting to Mopar/Chrysler Electronic Systems (non-computertype) using Harness PART NO. 29040 for OEM magnetic pickup Connect the ACCEL 500 Electronic Ignition Control’sSMALL GREEN WIRE to the Harness RED WIRE. Connect the ACCEL 500 Electronic Ignition Control’sSMALL BLACK WIRE to the Harness BLACK WIRE. Connect the BLACK WIRE to the ignition coil (–) terminal. Go to Step 3, page 11. Connect the mating plug of the Harness to the distributorplug.10www.accel-ignition.comACCEL IGNITION
RING TERMINAL CONNECTORS:Step 3Furnished with the ACCEL 500 Electronic Ignition Controlsare two Ring Terminal Connectors for theconvenience of getting a neat installation when theACCEL 500 Electronic Ignition Control is added to anexisting ignition system. These Ring Terminal Connectorsallow the existing ignition system wiring to remain in thearea of the ignition coil.Tachometer Operation:If a tachometer is used, connect tachometer ignitionsensing lead to the TACH terminal on the ACCEL 500 Electronic Ignition Control. Move wires onto the stud that is inside the Ring TerminalConnector body. Secure these wires to the stud with the nut and washer. Install the Ring Terminal Connector cap.(2c) Wiring Method without adapters for MagneticPickup Trigger Pulses (Non-Computer Type); MagneticPickup Distributors or Crank Trigger IgnitionConnecting to Magnetic Pickup Distributors and Crank TriggerIgnition – Refer to Figure 14. Connect the magnetic pickup ( ) wire to the SMALLGREEN WIRE from the ACCEL 500 Electronic IgnitionControl. Connect the magnetic pickup (–) wire to the SMALLBLACK WIRE from the ACCEL 500 Electronic IgnitionControl.If the tachometer does not work after being connected tothe TACH terminal, connect the tachometer ignition sensinglead to the GREEN WIRE from the Ignition Control Harness.If this does not work, your tach is a high voltage triggertach and will require the Mallory Fuel Injection andTachometer Adapter Part No. 29074 or 29078 to supply theproper signal for the tachometer to operate.BYPASS CONNECTORThe Bypass Connector (standard ignition bypass) fits intothe mating plug of the Ignition Control Harness to convertback to standard ignition. If you use the Bypass Connector,use ignition ballast resistors designed for the particulardistributor and coil in the wire from the ignition switch. Usethe Power Plug to convert back to standard ignition. Also, ifyou are using a Mallory Fuel Injection/Tachometer Adapter(Part No. 29074), disconnect it (and its diode if used) aspart of converting back to standard ignition. The BypassConnector (standard ignition bypass method to convertback to standard ignition) does not work with magneticpickup distributors or crank trigger ignition.Connecting the Ignition Control Harness: Route the Ignition Control Harness to the ignition coil sothat its wires do not make contact with extreme heat,sharp objects or moving devises such as fans, belts andlinkages.Step 4 Connect the RED WIRE to the 12-volt wire from theignition switch. NOTE: The RED WIRE must get voltagewhen the ignition switch is in the START and RUNpositions. Use a Ring Terminal Connector to join wirestogether.Step 5 Connect the YELLOW WIRE to the ignition coil ( )terminal. DO NOT allow any wire except the YELLOWWIRE to make contact with the ignition coil ( ) terminal.Secure all wires with cable ties to prevent contact extremeheat, sharp objects or moving devices such as fans, beltsand linkages.Recheck all wire and connections to ensure they arecorrect before applying power.Step 6Connect the battery (–) terminal cable. Start engine andcheck operation of the ignition system.Ignition Control Operation and Features Connect the BLACK WIRE to the ignition coil (–) terminal.ACCEL 500 49500 CD Ignition System DO NOT connect the GREEN WIRE of the Ignition ControlHarness to anything. Tape the end of it toinsulate it. Go to Step 3, Page 11.The features of the ACCEL 500 Ignition System arecontrolled by using the hand held controller. The “Mode”key controls which feature is being adjusted and the valueis changed by using the up and down arrow keys. To use,simply connect the cable provided between the controllerand the main unit. When finished, you can either removethe cable and controller for safe storage or leave itconnected. The features and their mode numbers arelisted below along with appearing on both the controllerand the main unit.:MAGNETIC PICKUP/CRANK TRIGGER COLOR CODESBRAND/TYPEMAG MALLORY CRANK TRIGGERPURPLEMALLORY BILLET COMPETITION DISTRIBUTOR,SERIES NOS. 81 AND 84ORANGEMALLORY COMP 9000 SERIES NOS 96-99ORANGEMALLORY HARNESS PART NO. 29040REDMSD CRANK TRIGGERPURPLEMSD CRANK TRIGGER (OLD STYLE)ORANGEMSD DISTRIBUTORORANGEMOROSO CRANK TRIGGERBLACKACCEL CRANK TRIGGERBLACKCHRYSLER ELECTRONIC DISTRIBUTORORANGEFORD DURASPARK DISTRIBUTORORANGEDELCO/GM HEI DISTRIBUTORWHITEACCEL 52/71 SeriesORANGEACCEL LEWHITEWHITEBLACKPURPLEGREENPURPLERPM Limiting Modes 1, 2, and 3- Utilize in sequence.Mode 1 – This is the normal engine protection RPM limit. Itis active if no other RPM limit is selected. The range of thislimiter is 1000 to 12800 in steps of 100 RPM.www.accel-ignition.com11
FIGURE 15Mode 2 – This is the auxiliary RPM limiter, and it is activatedwhen the RED wire coming out of the end panel isgrounded. The range is the same as the Mode 1 RPMlimiter. This RPML will over-ride the Mode 1 RPML when itis active.connected to ground when the switch is active, and has amaximum current rating of 10 amps. NOTE: The RPM rangefor this switch is 1000 to 12, 8000 and the off RPM (mode6) must be at least 100 RPM higher than the on RPM(mode 5).Mode 3 – This is the auxiliary RPM limiter, and it is activatedwhen the BLACK wire coming out of the end panel isgrounded. The range is the same as the Mode 1 RPMlimiter. This RPML will over-ride the Mode 1 and 2 RPMlimiters when it is active.Retard Stages Modes 4, 5, 6 and 7- Utilize in Sequence.Mode B – This is RPM Switch 1. It is selected when theORANGE wire coming out of the end panel is grounded.The range is .1 to 15 degrees in .1 degree steps.Mode 4 – This is the first selectable high-speed timingretard. It is selected when the ORANGE wire coming out ofthe end panel is grounded. The range is .1 to 15 degrees in.1 degree steps.Mode D– Boost timing retard degrees per PSI of boost. Ifyou have an optional 2 BAR, #716 or 3 BAR, #717 MAPsensor connected, the ACCEL 500 will retard the timing asthe boost pressure increases. Mode D tells the system howmany degrees to retard the timing for each pound of boost.The range is .1 to 4 degrees per pound of boost andadjusts in .1 degree increments The MAP sensor plugs intothe optional harness #29785 which connects to the 3 wireconnector that comes out of the front panel. If you don’thave a MAP sensor installed, this function has no effect.Mode 5 – This is the second selectable high-speed timingretard. It is selected when the YELLOW wire coming out ofthe end panel is grounded. The range is .1 to 15 degrees in.1 degree steps.Mode 6 – This is the third selectable high-speed timingretard. It is selected when the PURPLE wire coming out ofthe end panel is grounded. The range is .1 to 15 degrees in.1 degree steps.Mode 7 – This is the fourth selectable high-speed timingretard. It is selected when the WHITE wire coming out ofthe end panel is grounded. The range is .1 to 15 degrees in.1 degree steps.Mode 8 – Start retard value. This amount of retard is appliedwhenever the engine RPM is below 500. The range is .1 to10 degrees in .1 degree steps.Modes 9 and A – RPM Window Switch. These two controlthe built-in RPM activated “window” switch. Mode 9 setsthe RPM where the switch activates, and mode A sets theRPM where the switch de-activates. This is useful if, forexample, you want to have your nitrous system only workwithin a certain RPM range. The output wire for the RPMswitch is the VIOLET wire coming out of the end panel. It isMode C– This is RPM Switch 2. It is selected when theGREEN wire coming out of the end panel is grounded. Therange is .1 to 15 degrees in .1 degree steps.Mode E – Cylinder number select. Set this to however manycylinders your engine has. The range is 4 to 12 cylinders,even-fire ONLY!Mode F – MAP sensor select. There are two MAP sensorsavailable that are compatible with the ACCEL 500 . One isa 2 Bar sensor (P/N 716), which is good for about 15 PSI ofboost, and the other is a 3 Bar sensor (P/N 717), good forabout 30 PSI of boost. You will also need to purchase MAPSensor Harness 29785. Use mode F to tell the ACCEL500 which sensor you are using. If you don’t have a MAPsensor installed, this function has no effect.ACCEL IS A DIVISION OF THE MR. GASKET PERFORMANCE GROUP10601 MEMPHIS AVE. #12, CLEVELAND, OH 44144216.688.8300FAX 216.688.830612www.accel-ignition.comFORM 1486AC11/06Made in U.S.A.Printed in U.S.A.
Magnetic Breakerless Distributors or Electronic Advance Distributors (3-wire/red, brown, green) 7 . This signal changes once ACCEL 500 Electronic Ignition Controls are installed. The Mallory Fuel Injection and . Disconnect all connectors at the ignition module, ignition coil and distrib
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ACCEL IGNITION www.accel-ignition.com 1 Ignition Model #35496 FORM 97140090 INSTALLATION INSTRUCTIONS OVERVIEW ACCEL Ignit
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control circuit as well as the ignition 1 and ignition 2 relays. 3 GREEN Wire: Ignition 2 Output Connect this wire to the ignition 2 wire from the ignition switch. This wire will show 12 volts when the ignition key is turned to the "ON" or "RUN" p
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