Mallory Ignition Mallory HYFIRE VI SERIES OF ELECTRONIC IGNITION CONTROLS 685_6851 - Manual

1
HYFIRE
®
VI SERIES OF ELECTRONIC
IGNITION CONTROLS
HYFIRE ® VI Ignition System Part No. 685, Advanced
HYFIRE ® VI Ignition System Part No. 6851, Basic
For applications triggered by points, Mallory Electronic Ignition Distributor (all models), original equipment electronic
ignition amplifi ers and magnetic trigger pulses (magnetic pickup distributor or crank trigger ignition). Optional adapters are
available for easy connection to early model Delco/GM HEI Systems, late model GM HEI/EST Systems, Ford TFI Systems,
and OEM magnetic pickup (non-computer; Ford DuraSpark, GM HEI and Mopar/Chrysler Electronic Systems).
This product is legal to sell, distribute or install on vehicles in California. C.A.R.B. Executive Order D-70-26.
NOTE: Mallory HYFIRE ® VI Electronic Ignition Controls are not compatible with distributorless systems or positive
ground applications. The RPM Limiter in the HYFIRE ® VI (Part No. 685) will not work properly with odd-fi re or
semi-even fi re V6 applications.
Parts included in this kit:
1 HYFIRE ® VI Electronic Ignition Control - Part No. 685 or 6851
1 Ignition Control Harness - Part No. 29348
2 Terminal Connectors - Part No. 450
1 Bypass
Connector
4 Cable Ties
2 Spade Terminals
8 Ring Terminals, 1/4”
1 Ring Terminal, 3/8”
5 Spade Receptacle Terminals
4 10-32
Screws
4 10-32 Nuts with Lockwashers
INSTALLATION INSTRUCTIONS
FORM 1478 (REV. D) 09/2008
WARNING: DO NOT USE NON-SUPPRESSOR SPARK PLUG
WIRES WITH THE HYFIRE ® VI IGNITION CONTROL.
KEEP ALL IGNITION SYSTEM WIRES AS FAR FROM SPARK PLUG WIRES AS POSSIBLE.
General Information ...............................................................................2
Ignition Ballast Resistor/Loom Resistance Wire ............................2
Standard Ignition Bypass (Bypass Connector) ..............................2
Ignition
Coils ....................................................................................2
Fuel Injection ....................................................................................2
Spark Plug Wires ..............................................................................2
Spark Plug Gaps ..............................................................................2
Electric Welding ...............................................................................2
External RPM Limiters
Mallory PRO TACH
® I, IV and VI ......................................................2
Mounting Procedure ..............................................................................2
Mounting to a Flat Surface Without Brackets ................................2
Mounting to a Flat or Uneven Surface Using Brackets ................2
Mounting to a Flat Surface with Shock Mounts ............................2
Wiring Procedure ...................................................................................3
Wiring Method using Adapters and Harnesses ..............................3
GM HEI Systems/coil-in-cap with OEM module) ..................3-4
Late Model GM HEI/EST Systems (external coil) .................3-5
Ford TFI Systems .........................................................................3-4
Ford DuraSpark Systems (non-computer type,
without module) ......................................................................5-6
Early Model GM HEI Systems (non-computer type,
without module) .....................................................................6, 8
Mopar/Chrysler Corp. Electronic Systems
(non-computer type, without module) .................................6, 9
Wiring Method Without Adapters ..........................................................7
Breaker Point Systems ................................................................7, 9
Mallory Electronic Ignition, UNILITE
® Distributors,
Magnetic Breakerless Distributors or Electronic
Advance Distributors (3-wire/red, brown, green) .............7, 10
For OEM Electronic Systems with modules/amplifi ers
(Chrysler, Ford, and import) ...............................................7, 10
Magnetic Pickup Trigger Pulses (magnetic
pickup distributors or crank trigger ignition) .........................7, 10
Top Panel Operation and Features .................................................... 11
RPM Limiter Operation – HYFIRE
® VI Ignition System
(PN 685 only) .................................................................................. 11
Optional Ignition Accessories ............................................................. 11
Bypass Connector ...............................................................................12
Mounting Template ..............................................................................12
CONTENTS